diff --git a/async/go-client/cmd/client.go b/async/go-client/cmd/client.go
index 62a80b2..1796bf9 100644
--- a/async/go-client/cmd/client.go
+++ b/async/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/async/go-client/pkg/user.go b/async/go-client/pkg/user.go
index 92239d6..a579dd2 100644
--- a/async/go-client/pkg/user.go
+++ b/async/go-client/pkg/user.go
@@ -26,6 +26,7 @@
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/remoting"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/async/go-server/pkg/user.go b/async/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/async/go-server/pkg/user.go
+++ b/async/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/async/go-server/tests/integration/main_test.go b/async/go-server/tests/integration/main_test.go
index cb20b83..7a6f920 100644
--- a/async/go-server/tests/integration/main_test.go
+++ b/async/go-server/tests/integration/main_test.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/remoting"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/async/go-server/tests/integration/userprovider_test.go b/async/go-server/tests/integration/userprovider_test.go
index 947d2cb..d84857a 100644
--- a/async/go-server/tests/integration/userprovider_test.go
+++ b/async/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -31,6 +32,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/attachment/go-client/cmd/client.go b/attachment/go-client/cmd/client.go
index 0654e5a..04ce85d 100644
--- a/attachment/go-client/cmd/client.go
+++ b/attachment/go-client/cmd/client.go
@@ -25,11 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/attachment/go-client/pkg"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/constant"
@@ -39,6 +34,12 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/attachment/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/attachment/go-server/cmd/server.go b/attachment/go-server/cmd/server.go
index fa04640..378f189 100644
--- a/attachment/go-server/cmd/server.go
+++ b/attachment/go-server/cmd/server.go
@@ -27,10 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/attachment/go-server/pkg"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -42,6 +38,10 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/attachment/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/attachment/go-server/pkg/user.go b/attachment/go-server/pkg/user.go
index 3ef5aa7..de1f24b 100644
--- a/attachment/go-server/pkg/user.go
+++ b/attachment/go-server/pkg/user.go
@@ -24,12 +24,10 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/attachment/go-server/tests/integration/main_test.go b/attachment/go-server/tests/integration/main_test.go
index 10bc5ca..b4a5139 100644
--- a/attachment/go-server/tests/integration/main_test.go
+++ b/attachment/go-server/tests/integration/main_test.go
@@ -20,10 +20,14 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
 )
 
 import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -35,13 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/attachment/go-server/tests/integration/userprovider_test.go b/attachment/go-server/tests/integration/userprovider_test.go
index 5cc9943..a6fc679 100644
--- a/attachment/go-server/tests/integration/userprovider_test.go
+++ b/attachment/go-server/tests/integration/userprovider_test.go
@@ -24,8 +24,10 @@
 	"testing"
 	"time"
 )
+
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/chain/backend/cmd/server.go b/chain/backend/cmd/server.go
index aa9d7df..42544bc 100644
--- a/chain/backend/cmd/server.go
+++ b/chain/backend/cmd/server.go
@@ -26,10 +26,6 @@
 )
 
 import (
-	_ "github.com/apache/dubbo-go-samples/chain/backend/pkg"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -42,6 +38,10 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	_ "github.com/apache/dubbo-go-samples/chain/backend/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/chain/backend/tests/integration/main_test.go b/chain/backend/tests/integration/main_test.go
index 55c2706..979ffb1 100644
--- a/chain/backend/tests/integration/main_test.go
+++ b/chain/backend/tests/integration/main_test.go
@@ -20,6 +20,12 @@
 package integration
 
 import (
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -31,12 +37,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"os"
-	"testing"
-	"time"
-)
-
 var cat = new(CatService)
 var dog = new(DogService)
 var tiger = new(TigerService)
diff --git a/chain/backend/tests/integration/services_test.go b/chain/backend/tests/integration/services_test.go
index 888ba24..c3d7529 100644
--- a/chain/backend/tests/integration/services_test.go
+++ b/chain/backend/tests/integration/services_test.go
@@ -22,6 +22,7 @@
 import (
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/chain/frontend/cmd/client.go b/chain/frontend/cmd/client.go
index e13ab55..e201571 100644
--- a/chain/frontend/cmd/client.go
+++ b/chain/frontend/cmd/client.go
@@ -23,10 +23,6 @@
 )
 
 import (
-	"github.com/apache/dubbo-go-samples/chain/frontend/pkg"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -38,6 +34,10 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/chain/frontend/pkg"
+)
+
 func main() {
 	var chinese = new(pkg.ChineseService)
 	var american = new(pkg.AmericanService)
diff --git a/chain/middle/cmd/server.go b/chain/middle/cmd/server.go
index 007c5a4..fe81ad2 100644
--- a/chain/middle/cmd/server.go
+++ b/chain/middle/cmd/server.go
@@ -26,10 +26,6 @@
 )
 
 import (
-	_ "github.com/apache/dubbo-go-samples/chain/middle/pkg"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -42,6 +38,10 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	_ "github.com/apache/dubbo-go-samples/chain/middle/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/chain/middle/tests/integration/main_test.go b/chain/middle/tests/integration/main_test.go
index a45bb1a..f938433 100644
--- a/chain/middle/tests/integration/main_test.go
+++ b/chain/middle/tests/integration/main_test.go
@@ -20,6 +20,12 @@
 package integration
 
 import (
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -31,12 +37,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"os"
-	"testing"
-	"time"
-)
-
 var (
 	chinese  = new(ChineseService)
 	american = new(AmericanService)
diff --git a/chain/middle/tests/integration/services_test.go b/chain/middle/tests/integration/services_test.go
index d1c9f97..5b39ea6 100644
--- a/chain/middle/tests/integration/services_test.go
+++ b/chain/middle/tests/integration/services_test.go
@@ -20,11 +20,11 @@
 package integration
 
 import (
-	"github.com/stretchr/testify/assert"
+	"testing"
 )
 
 import (
-	"testing"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestChinese(t *testing.T) {
diff --git a/config-api/go-client/cmd/client.go b/config-api/go-client/cmd/client.go
index 1427407..833071d 100644
--- a/config-api/go-client/cmd/client.go
+++ b/config-api/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/config-api/go-server/pkg/user.go b/config-api/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/config-api/go-server/pkg/user.go
+++ b/config-api/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/config-api/go-server/tests/integration/main_test.go b/config-api/go-server/tests/integration/main_test.go
index f79029c..b4a5139 100644
--- a/config-api/go-server/tests/integration/main_test.go
+++ b/config-api/go-server/tests/integration/main_test.go
@@ -39,8 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/config-api/go-server/tests/integration/userprovider_test.go b/config-api/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/config-api/go-server/tests/integration/userprovider_test.go
+++ b/config-api/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/configcenter/apollo/go-client/cmd/client.go b/configcenter/apollo/go-client/cmd/client.go
index 77c760a..fa6b74f 100644
--- a/configcenter/apollo/go-client/cmd/client.go
+++ b/configcenter/apollo/go-client/cmd/client.go
@@ -34,6 +34,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/configcenter/apollo/go-server/cmd/server.go b/configcenter/apollo/go-server/cmd/server.go
index 065abfa..919cc26 100644
--- a/configcenter/apollo/go-server/cmd/server.go
+++ b/configcenter/apollo/go-server/cmd/server.go
@@ -27,7 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -38,7 +37,6 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
-
 )
 
 import (
diff --git a/configcenter/apollo/go-server/pkg/user.go b/configcenter/apollo/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/configcenter/apollo/go-server/pkg/user.go
+++ b/configcenter/apollo/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/configcenter/nacos/go-client/cmd/client.go b/configcenter/nacos/go-client/cmd/client.go
index bc2c501..ff0bf9b 100644
--- a/configcenter/nacos/go-client/cmd/client.go
+++ b/configcenter/nacos/go-client/cmd/client.go
@@ -34,6 +34,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/configcenter/nacos/go-server/pkg/user.go b/configcenter/nacos/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/configcenter/nacos/go-server/pkg/user.go
+++ b/configcenter/nacos/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/configcenter/zookeeper/go-client/cmd/client.go b/configcenter/zookeeper/go-client/cmd/client.go
index 45b619d..1008ff0 100644
--- a/configcenter/zookeeper/go-client/cmd/client.go
+++ b/configcenter/zookeeper/go-client/cmd/client.go
@@ -34,6 +34,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/configcenter/zookeeper/go-server/pkg/user.go b/configcenter/zookeeper/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/configcenter/zookeeper/go-server/pkg/user.go
+++ b/configcenter/zookeeper/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/context/go-client/cmd/client.go b/context/go-client/cmd/client.go
index 484c1da..9579d4f 100644
--- a/context/go-client/cmd/client.go
+++ b/context/go-client/cmd/client.go
@@ -34,6 +34,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/context/go-server/pkg/user.go b/context/go-server/pkg/user.go
index b943959..81b5225 100644
--- a/context/go-server/pkg/user.go
+++ b/context/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/context/go-server/tests/integration/userprovider_test.go b/context/go-server/tests/integration/userprovider_test.go
index 2618866..21cacc1 100644
--- a/context/go-server/tests/integration/userprovider_test.go
+++ b/context/go-server/tests/integration/userprovider_test.go
@@ -23,8 +23,10 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/direct/go-client/cmd/client.go b/direct/go-client/cmd/client.go
index 13f587d..4b943ac 100644
--- a/direct/go-client/cmd/client.go
+++ b/direct/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/direct/go-server/pkg/user.go b/direct/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/direct/go-server/pkg/user.go
+++ b/direct/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/direct/go-server/tests/integration/userprovider_test.go b/direct/go-server/tests/integration/userprovider_test.go
index 9dc1252..7183e64 100644
--- a/direct/go-server/tests/integration/userprovider_test.go
+++ b/direct/go-server/tests/integration/userprovider_test.go
@@ -23,12 +23,11 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
 
-// in order to make sure direct-invoking is enabled, check if references -> UserProvider -> url is specified
-// in conf/client.yaml
 func TestGetUser(t *testing.T) {
 	user := &User{}
 	err := userProvider.GetUser(context.TODO(), []interface{}{"A001"}, user)
diff --git a/docker/go-client/cmd/client.go b/docker/go-client/cmd/client.go
index 6ca8d95..6bcac75 100644
--- a/docker/go-client/cmd/client.go
+++ b/docker/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/docker/go-server/pkg/user.go b/docker/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/docker/go-server/pkg/user.go
+++ b/docker/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/custom/go-client/cmd/client.go b/filter/custom/go-client/cmd/client.go
index b14fd53..15c301c 100644
--- a/filter/custom/go-client/cmd/client.go
+++ b/filter/custom/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/custom/go-server/pkg/custom_filter.go b/filter/custom/go-server/pkg/custom_filter.go
index 651fde5..8de581b 100644
--- a/filter/custom/go-server/pkg/custom_filter.go
+++ b/filter/custom/go-server/pkg/custom_filter.go
@@ -27,6 +27,7 @@
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/filter"
 	"github.com/apache/dubbo-go/protocol"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/custom/go-server/pkg/user.go b/filter/custom/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/filter/custom/go-server/pkg/user.go
+++ b/filter/custom/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/custom/go-server/tests/integration/userprovider_test.go b/filter/custom/go-server/tests/integration/userprovider_test.go
index beefe1b..4618a83 100644
--- a/filter/custom/go-server/tests/integration/userprovider_test.go
+++ b/filter/custom/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/filter/sentinel/go-client/cmd/client.go b/filter/sentinel/go-client/cmd/client.go
index 2a506c9..b24f7be 100644
--- a/filter/sentinel/go-client/cmd/client.go
+++ b/filter/sentinel/go-client/cmd/client.go
@@ -26,6 +26,7 @@
 	"github.com/alibaba/sentinel-golang/api"
 	sentinelConf "github.com/alibaba/sentinel-golang/core/config"
 	"github.com/alibaba/sentinel-golang/core/flow"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -35,6 +36,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/sentinel/go-server/cmd/server.go b/filter/sentinel/go-server/cmd/server.go
index 20b32b9..bf297b2 100644
--- a/filter/sentinel/go-server/cmd/server.go
+++ b/filter/sentinel/go-server/cmd/server.go
@@ -29,6 +29,7 @@
 	"github.com/alibaba/sentinel-golang/api"
 	sentinelConf "github.com/alibaba/sentinel-golang/core/config"
 	"github.com/alibaba/sentinel-golang/core/flow"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
diff --git a/filter/sentinel/go-server/pkg/user.go b/filter/sentinel/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/filter/sentinel/go-server/pkg/user.go
+++ b/filter/sentinel/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/sentinel/go-server/tests/integration/userprovider_test.go b/filter/sentinel/go-server/tests/integration/userprovider_test.go
index d6a5ecc..397f3ab 100644
--- a/filter/sentinel/go-server/tests/integration/userprovider_test.go
+++ b/filter/sentinel/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/filter/tpslimit/go-server/pkg/limit_strategy.go b/filter/tpslimit/go-server/pkg/limit_strategy.go
index 161e62d..f64a049 100644
--- a/filter/tpslimit/go-server/pkg/limit_strategy.go
+++ b/filter/tpslimit/go-server/pkg/limit_strategy.go
@@ -24,6 +24,7 @@
 import (
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/filter"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/filter/tpslimit/go-server/pkg/user.go b/filter/tpslimit/go-server/pkg/user.go
index 7a3231a..b778495 100644
--- a/filter/tpslimit/go-server/pkg/user.go
+++ b/filter/tpslimit/go-server/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/game/go-server-game/cmd/server.go b/game/go-server-game/cmd/server.go
index dbb9f28..16e42d8 100644
--- a/game/go-server-game/cmd/server.go
+++ b/game/go-server-game/cmd/server.go
@@ -1,29 +1,29 @@
 package main
 
 import (
-    "os"
-    "os/signal"
-    "syscall"
-    "time"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
 
-    "github.com/apache/dubbo-go/common/logger"
-    "github.com/apache/dubbo-go/config"
-    hessian "github.com/apache/dubbo-go-hessian2"
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
 
-    _ "github.com/apache/dubbo-go/protocol/dubbo"
-    _ "github.com/apache/dubbo-go/registry/protocol"
-
-    _ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-    _ "github.com/apache/dubbo-go/filter/filter_impl"
-
-    _ "github.com/apache/dubbo-go/cluster/cluster_impl"
-    _ "github.com/apache/dubbo-go/cluster/loadbalance"
-    // _ "github.com/apache/dubbo-go/metadata/service/remote"
-    _ "github.com/apache/dubbo-go/metadata/service/inmemory"
-    _ "github.com/apache/dubbo-go/registry/zookeeper"
-
-    "github.com/apache/dubbo-go-samples/game/go-server-game/pkg"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go-samples/game/go-server-game/pkg"
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 func init() {
diff --git a/game/go-server-game/pkg/consumer.go b/game/go-server-game/pkg/consumer.go
index dc3c045..c879fae 100644
--- a/game/go-server-game/pkg/consumer.go
+++ b/game/go-server-game/pkg/consumer.go
@@ -1,5 +1,7 @@
 package pkg
 
-import "github.com/apache/dubbo-go-samples/game/pkg/consumer/gate"
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/consumer/gate"
+)
 
-var GateBasketball = new(gate.BasketballService)
\ No newline at end of file
+var GateBasketball = new(gate.BasketballService)
diff --git a/game/go-server-game/pkg/provider.go b/game/go-server-game/pkg/provider.go
index 7892000..7b7c246 100644
--- a/game/go-server-game/pkg/provider.go
+++ b/game/go-server-game/pkg/provider.go
@@ -1,13 +1,17 @@
 package pkg
 
 import (
-    "context"
-    "fmt"
-    "strconv"
+	"context"
+	"fmt"
+	"strconv"
+)
 
-    "github.com/apache/dubbo-go/common/logger"
+import (
+	"github.com/apache/dubbo-go/common/logger"
+)
 
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 type BasketballService struct{}
@@ -103,4 +107,4 @@
 
 func (p *BasketballService) Reference() string {
     return "gameProvider.basketballService"
-}
\ No newline at end of file
+}
diff --git a/game/go-server-game/tests/integration/gameprovider_test.go b/game/go-server-game/tests/integration/gameprovider_test.go
index 02dcf4a..6240102 100755
--- a/game/go-server-game/tests/integration/gameprovider_test.go
+++ b/game/go-server-game/tests/integration/gameprovider_test.go
@@ -1,10 +1,12 @@
 package integration
 
 import (
-    "context"
-    "testing"
+	"context"
+	"testing"
+)
 
-    "github.com/stretchr/testify/assert"
+import (
+	"github.com/stretchr/testify/assert"
 )
 
 func TestLogin(t *testing.T) {
@@ -29,4 +31,4 @@
     assert.Nil(t, err)
     assert.NotNil(t, res)
     assert.Equal(t, int32(0), res.Code)
-}
\ No newline at end of file
+}
diff --git a/game/go-server-game/tests/integration/main_test.go b/game/go-server-game/tests/integration/main_test.go
index e04d87a..9459f1a 100644
--- a/game/go-server-game/tests/integration/main_test.go
+++ b/game/go-server-game/tests/integration/main_test.go
@@ -1,27 +1,27 @@
 package integration
 
 import (
-    "os"
-    "testing"
-    "time"
+	"os"
+	"testing"
+	"time"
+)
 
-    hessian "github.com/apache/dubbo-go-hessian2"
-    "github.com/apache/dubbo-go/config"
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
 
-    _ "github.com/apache/dubbo-go/protocol/dubbo"
-    _ "github.com/apache/dubbo-go/registry/protocol"
-
-    _ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-    _ "github.com/apache/dubbo-go/filter/filter_impl"
-
-    _ "github.com/apache/dubbo-go/cluster/cluster_impl"
-    _ "github.com/apache/dubbo-go/cluster/loadbalance"
-    // _ "github.com/apache/dubbo-go/metadata/service/remote"
-    _ "github.com/apache/dubbo-go/metadata/service/inmemory"
-    _ "github.com/apache/dubbo-go/registry/zookeeper"
-
-    "github.com/apache/dubbo-go-samples/game/pkg/consumer/game"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/consumer/game"
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 var gameProvider = new(game.BasketballService)
@@ -34,4 +34,4 @@
     time.Sleep(3 * time.Second)
 
     os.Exit(m.Run())
-}
\ No newline at end of file
+}
diff --git a/game/go-server-gate/cmd/server.go b/game/go-server-gate/cmd/server.go
index b16297b..bde9993 100755
--- a/game/go-server-gate/cmd/server.go
+++ b/game/go-server-gate/cmd/server.go
@@ -1,34 +1,34 @@
 package main
 
 import (
-    "context"
-    "encoding/json"
-    "io/ioutil"
-    "net/http"
-    "os"
-    "os/signal"
-    "strconv"
-    "syscall"
-    "time"
+	"context"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+	"time"
+)
 
-    hessian "github.com/apache/dubbo-go-hessian2"
-    "github.com/apache/dubbo-go/common/logger"
-    "github.com/apache/dubbo-go/config"
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
 
-    _ "github.com/apache/dubbo-go/protocol/dubbo"
-    _ "github.com/apache/dubbo-go/registry/protocol"
-
-    _ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-    _ "github.com/apache/dubbo-go/filter/filter_impl"
-
-    _ "github.com/apache/dubbo-go/cluster/cluster_impl"
-    _ "github.com/apache/dubbo-go/cluster/loadbalance"
-    // _ "github.com/apache/dubbo-go/metadata/service/remote"
-    _ "github.com/apache/dubbo-go/metadata/service/inmemory"
-    _ "github.com/apache/dubbo-go/registry/zookeeper"
-
-    "github.com/apache/dubbo-go-samples/game/go-server-gate/pkg"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go-samples/game/go-server-gate/pkg"
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 func init() {
@@ -136,4 +136,4 @@
     w.Header().Set("Content-Type", "application/json; charset=utf-8")
     w.WriteHeader(code)
     w.Write(json)
-}
\ No newline at end of file
+}
diff --git a/game/go-server-gate/pkg/consumer.go b/game/go-server-gate/pkg/consumer.go
index 74bd910..fedca07 100644
--- a/game/go-server-gate/pkg/consumer.go
+++ b/game/go-server-gate/pkg/consumer.go
@@ -1,9 +1,12 @@
 package pkg
 
 import (
-    "context"
-    "github.com/apache/dubbo-go-samples/game/pkg/consumer/game"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+	"context"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/consumer/game"
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 var GameBasketball = new(game.BasketballService)
diff --git a/game/go-server-gate/pkg/provider.go b/game/go-server-gate/pkg/provider.go
index e47ed65..89d99d7 100644
--- a/game/go-server-gate/pkg/provider.go
+++ b/game/go-server-gate/pkg/provider.go
@@ -1,10 +1,15 @@
 package pkg
 
 import (
-    "context"
-    "github.com/apache/dubbo-go/common/logger"
+	"context"
+)
 
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go/common/logger"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 type BasketballService struct{}
diff --git a/game/go-server-gate/tests/integration/gateprovider_test.go b/game/go-server-gate/tests/integration/gateprovider_test.go
index ebb7ea2..c8b0c96 100644
--- a/game/go-server-gate/tests/integration/gateprovider_test.go
+++ b/game/go-server-gate/tests/integration/gateprovider_test.go
@@ -1,10 +1,12 @@
 package integration
 
 import (
-    "context"
-    "testing"
+	"context"
+	"testing"
+)
 
-    "github.com/stretchr/testify/assert"
+import (
+	"github.com/stretchr/testify/assert"
 )
 
 func TestSend(t *testing.T) {
@@ -15,4 +17,4 @@
     assert.NotNil(t, res.Data)
     assert.Equal(t, "A001", res.Data["to"])
     assert.Equal(t, "hello", res.Data["message"])
-}
\ No newline at end of file
+}
diff --git a/game/go-server-gate/tests/integration/main_test.go b/game/go-server-gate/tests/integration/main_test.go
index 41bf36b..88bf8d3 100644
--- a/game/go-server-gate/tests/integration/main_test.go
+++ b/game/go-server-gate/tests/integration/main_test.go
@@ -1,27 +1,27 @@
 package integration
 
 import (
-    "os"
-    "testing"
-    "time"
+	"os"
+	"testing"
+	"time"
+)
 
-    hessian "github.com/apache/dubbo-go-hessian2"
-    "github.com/apache/dubbo-go/config"
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
 
-    _ "github.com/apache/dubbo-go/protocol/dubbo"
-    _ "github.com/apache/dubbo-go/registry/protocol"
-
-    _ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-    _ "github.com/apache/dubbo-go/filter/filter_impl"
-
-    _ "github.com/apache/dubbo-go/cluster/cluster_impl"
-    _ "github.com/apache/dubbo-go/cluster/loadbalance"
-    // _ "github.com/apache/dubbo-go/metadata/service/remote"
-    _ "github.com/apache/dubbo-go/metadata/service/inmemory"
-    _ "github.com/apache/dubbo-go/registry/zookeeper"
-
-    "github.com/apache/dubbo-go-samples/game/pkg/consumer/gate"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/consumer/gate"
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 var gateProvider = new(gate.BasketballService)
@@ -34,4 +34,4 @@
     time.Sleep(3 * time.Second)
 
     os.Exit(m.Run())
-}
\ No newline at end of file
+}
diff --git a/game/pkg/consumer/game/basketball.go b/game/pkg/consumer/game/basketball.go
index 20dc0b6..36a343e 100644
--- a/game/pkg/consumer/game/basketball.go
+++ b/game/pkg/consumer/game/basketball.go
@@ -1,8 +1,11 @@
 package game
 
 import (
-    "context"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+	"context"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 type BasketballService struct {
diff --git a/game/pkg/consumer/gate/basketball.go b/game/pkg/consumer/gate/basketball.go
index 74833d3..9d656d7 100644
--- a/game/pkg/consumer/gate/basketball.go
+++ b/game/pkg/consumer/gate/basketball.go
@@ -1,8 +1,11 @@
 package gate
 
 import (
-    "context"
-    "github.com/apache/dubbo-go-samples/game/pkg/pojo"
+	"context"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/game/pkg/pojo"
 )
 
 type BasketballService struct {
diff --git a/game/pkg/pojo/info.go b/game/pkg/pojo/info.go
index 59d47dc..6125b5a 100644
--- a/game/pkg/pojo/info.go
+++ b/game/pkg/pojo/info.go
@@ -7,4 +7,4 @@
 
 func (m Info) JavaClassName() string {
 	return "org.apache.dubbo.pojo.Info"
-}
\ No newline at end of file
+}
diff --git a/general/dubbo/go-client/cmd/client.go b/general/dubbo/go-client/cmd/client.go
index 1b89fc6..9df1d28 100644
--- a/general/dubbo/go-client/cmd/client.go
+++ b/general/dubbo/go-client/cmd/client.go
@@ -24,19 +24,20 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/general/dubbo/go-client/pkg"
-	"github.com/apache/dubbo-go/config"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/general/dubbo/go-client/pkg"
 )
 
 var (
diff --git a/general/dubbo/go-server/cmd/server.go b/general/dubbo/go-server/cmd/server.go
index 97e5477..af84144 100644
--- a/general/dubbo/go-server/cmd/server.go
+++ b/general/dubbo/go-server/cmd/server.go
@@ -27,26 +27,26 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/general/dubbo/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/general/dubbo/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/general/dubbo/go-server/pkg/user_provider.go b/general/dubbo/go-server/pkg/user_provider.go
index 6ccb0f1..38cb8c9 100644
--- a/general/dubbo/go-server/pkg/user_provider.go
+++ b/general/dubbo/go-server/pkg/user_provider.go
@@ -25,13 +25,12 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-	perrors "github.com/pkg/errors"
-)
-
-import (
 	"github.com/apache/dubbo-go-hessian2/java_exception"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	perrors "github.com/pkg/errors"
 )
 
 func init() {
diff --git a/general/dubbo/go-server/tests/integration/main_test.go b/general/dubbo/go-server/tests/integration/main_test.go
index eaad5f4..52f360a 100644
--- a/general/dubbo/go-server/tests/integration/main_test.go
+++ b/general/dubbo/go-server/tests/integration/main_test.go
@@ -20,20 +20,6 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-	_ "github.com/apache/dubbo-go/registry/zookeeper"
-)
-
-import (
 	"context"
 	"fmt"
 	"os"
@@ -42,6 +28,19 @@
 	"time"
 )
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
+
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/general/dubbo/go-server/tests/integration/userprovider_test.go b/general/dubbo/go-server/tests/integration/userprovider_test.go
index 70e7617..988e1cd 100644
--- a/general/dubbo/go-server/tests/integration/userprovider_test.go
+++ b/general/dubbo/go-server/tests/integration/userprovider_test.go
@@ -21,14 +21,19 @@
 
 import (
 	"context"
-	"github.com/apache/dubbo-go-hessian2/java_exception"
-	"github.com/apache/dubbo-go-samples/general/dubbo/go-server/pkg"
 	"testing"
 )
+
 import (
+	"github.com/apache/dubbo-go-hessian2/java_exception"
+
 	"github.com/stretchr/testify/assert"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/general/dubbo/go-server/pkg"
+)
+
 func TestGetUserA000(t *testing.T) {
 	user := &User{}
 	err := userProvider.GetUser(context.TODO(), []interface{}{"A000"}, user)
diff --git a/general/grpc/go-client/cmd/client.go b/general/grpc/go-client/cmd/client.go
index 919c92c..e216621 100644
--- a/general/grpc/go-client/cmd/client.go
+++ b/general/grpc/go-client/cmd/client.go
@@ -32,6 +32,7 @@
 	_ "github.com/apache/dubbo-go/protocol/grpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/general/grpc/go-server/cmd/server.go b/general/grpc/go-server/cmd/server.go
index 984fcc5..feaf763 100644
--- a/general/grpc/go-server/cmd/server.go
+++ b/general/grpc/go-server/cmd/server.go
@@ -37,7 +37,7 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import(
+import (
 	"github.com/apache/dubbo-go-samples/general/grpc/go-server/pkg"
 )
 
diff --git a/general/grpc/go-server/pkg/greeter.go b/general/grpc/go-server/pkg/greeter.go
index 154d35d..f205f39 100644
--- a/general/grpc/go-server/pkg/greeter.go
+++ b/general/grpc/go-server/pkg/greeter.go
@@ -20,6 +20,9 @@
 import (
 	"context"
 	"fmt"
+)
+
+import (
 	"github.com/apache/dubbo-go-samples/general/grpc/protobuf"
 )
 
diff --git a/general/grpc/go-server/tests/integration/greeter_test.go b/general/grpc/go-server/tests/integration/greeter_test.go
index 45eccdd..f49e5a1 100644
--- a/general/grpc/go-server/tests/integration/greeter_test.go
+++ b/general/grpc/go-server/tests/integration/greeter_test.go
@@ -24,7 +24,7 @@
 	"testing"
 )
 
-import(
+import (
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/general/grpc/go-server/tests/integration/main_test.go b/general/grpc/go-server/tests/integration/main_test.go
index 74a9c4a..cba31a9 100644
--- a/general/grpc/go-server/tests/integration/main_test.go
+++ b/general/grpc/go-server/tests/integration/main_test.go
@@ -20,6 +20,12 @@
 package integration
 
 import (
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -32,11 +38,6 @@
 )
 
 import (
-	"os"
-	"testing"
-	"time"
-)
-import (
 	"github.com/apache/dubbo-go-samples/general/grpc/protobuf"
 )
 
diff --git a/general/grpc/protobuf/helloworld.pb.go b/general/grpc/protobuf/helloworld.pb.go
index 8124c8f..1dbb351 100644
--- a/general/grpc/protobuf/helloworld.pb.go
+++ b/general/grpc/protobuf/helloworld.pb.go
@@ -6,10 +6,6 @@
 import (
 	context "context"
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -17,9 +13,14 @@
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	proto "github.com/golang/protobuf/proto"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/general/grpc/stream/go-client/app/client.go b/general/grpc/stream/go-client/app/client.go
index ede6be7..e0f5f36 100644
--- a/general/grpc/stream/go-client/app/client.go
+++ b/general/grpc/stream/go-client/app/client.go
@@ -37,6 +37,7 @@
 	_ "github.com/apache/dubbo-go/protocol/grpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/general/grpc/stream/go-client/app/helloworld.pb.go b/general/grpc/stream/go-client/app/helloworld.pb.go
index 4bdfb1e..206bf71 100644
--- a/general/grpc/stream/go-client/app/helloworld.pb.go
+++ b/general/grpc/stream/go-client/app/helloworld.pb.go
@@ -6,10 +6,6 @@
 import (
 	context "context"
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -17,9 +13,14 @@
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	proto "github.com/golang/protobuf/proto"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/general/grpc/stream/go-server/app/helloworld.pb.go b/general/grpc/stream/go-server/app/helloworld.pb.go
index 4bdfb1e..1850d20 100644
--- a/general/grpc/stream/go-server/app/helloworld.pb.go
+++ b/general/grpc/stream/go-server/app/helloworld.pb.go
@@ -6,10 +6,6 @@
 import (
 	context "context"
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -17,9 +13,15 @@
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	proto "github.com/golang/protobuf/proto"
+
+	grpc "google.golang.org/grpc"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/general/grpc/unary/go-client/app/client.go b/general/grpc/unary/go-client/app/client.go
index 6dd2cc7..fc0d332 100644
--- a/general/grpc/unary/go-client/app/client.go
+++ b/general/grpc/unary/go-client/app/client.go
@@ -31,6 +31,7 @@
 	_ "github.com/apache/dubbo-go/protocol/grpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/general/grpc/unary/go-client/app/helloworld.pb.go b/general/grpc/unary/go-client/app/helloworld.pb.go
index e0e9b31..101f288 100644
--- a/general/grpc/unary/go-client/app/helloworld.pb.go
+++ b/general/grpc/unary/go-client/app/helloworld.pb.go
@@ -6,10 +6,6 @@
 import (
 	context "context"
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -17,9 +13,14 @@
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	proto "github.com/golang/protobuf/proto"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/general/grpc/unary/go-server/app/greeter.go b/general/grpc/unary/go-server/app/greeter.go
index e5471f3..17c3290 100644
--- a/general/grpc/unary/go-server/app/greeter.go
+++ b/general/grpc/unary/go-server/app/greeter.go
@@ -22,7 +22,6 @@
 	"fmt"
 )
 
-
 type GreeterProvider struct {
 	*GreeterProviderBase
 }
diff --git a/general/grpc/unary/go-server/app/helloworld.pb.go b/general/grpc/unary/go-server/app/helloworld.pb.go
index e0e9b31..101f288 100644
--- a/general/grpc/unary/go-server/app/helloworld.pb.go
+++ b/general/grpc/unary/go-server/app/helloworld.pb.go
@@ -6,10 +6,6 @@
 import (
 	context "context"
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -17,9 +13,14 @@
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	proto "github.com/golang/protobuf/proto"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/general/jsonrpc/go-client/app/client.go b/general/jsonrpc/go-client/app/client.go
index aa857df..24066b5 100644
--- a/general/jsonrpc/go-client/app/client.go
+++ b/general/jsonrpc/go-client/app/client.go
@@ -27,21 +27,17 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
 )
 
 var (
diff --git a/general/jsonrpc/go-server/app/server.go b/general/jsonrpc/go-server/app/server.go
index 3ad3d4e..1f0dfe9 100644
--- a/general/jsonrpc/go-server/app/server.go
+++ b/general/jsonrpc/go-server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
diff --git a/general/jsonrpc/go-server/app/user_provider.go b/general/jsonrpc/go-server/app/user_provider.go
index 3700daa..8957c7a 100644
--- a/general/jsonrpc/go-server/app/user_provider.go
+++ b/general/jsonrpc/go-server/app/user_provider.go
@@ -7,11 +7,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/general/jsonrpc/go-server/app/user_provider1.go b/general/jsonrpc/go-server/app/user_provider1.go
index 4b7af5a..8007234 100644
--- a/general/jsonrpc/go-server/app/user_provider1.go
+++ b/general/jsonrpc/go-server/app/user_provider1.go
@@ -7,11 +7,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/general/jsonrpc/go-server/app/user_provider2.go b/general/jsonrpc/go-server/app/user_provider2.go
index 752eb8b..1726574 100644
--- a/general/jsonrpc/go-server/app/user_provider2.go
+++ b/general/jsonrpc/go-server/app/user_provider2.go
@@ -7,11 +7,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/general/rest/go-client/cmd/client.go b/general/rest/go-client/cmd/client.go
index c8ca0d9..cc891bd 100644
--- a/general/rest/go-client/cmd/client.go
+++ b/general/rest/go-client/cmd/client.go
@@ -24,24 +24,22 @@
 )
 
 import (
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	"github.com/apache/dubbo-go/config"
-	_ "github.com/apache/dubbo-go/protocol/rest"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-	"github.com/dubbogo/gost/log"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/protocol/rest"
+	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
 )
 
 import (
 	"github.com/apache/dubbo-go-samples/general/rest/go-client/pkg"
 )
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
 func main() {
 	config.Load()
 	time.Sleep(3 * time.Second)
diff --git a/general/rest/go-server/cmd/server.go b/general/rest/go-server/cmd/server.go
index 469fbb2..1fb66fe 100644
--- a/general/rest/go-server/cmd/server.go
+++ b/general/rest/go-server/cmd/server.go
@@ -26,21 +26,21 @@
 )
 
 import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/rest"
 	"github.com/apache/dubbo-go/protocol/rest/server/server_impl"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-	"github.com/dubbogo/gost/log"
-	"github.com/emicklei/go-restful/v3"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/emicklei/go-restful/v3"
 )
 
 import (
diff --git a/general/rest/go-server/pkg/user_provider.go b/general/rest/go-server/pkg/user_provider.go
index 5fa4428..bf42866 100644
--- a/general/rest/go-server/pkg/user_provider.go
+++ b/general/rest/go-server/pkg/user_provider.go
@@ -6,12 +6,11 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	perrors "github.com/pkg/errors"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	perrors "github.com/pkg/errors"
 )
 
 func init() {
diff --git a/general/rest/go-server/pkg/user_provider1.go b/general/rest/go-server/pkg/user_provider1.go
index e8ffb21..6fdc271 100644
--- a/general/rest/go-server/pkg/user_provider1.go
+++ b/general/rest/go-server/pkg/user_provider1.go
@@ -6,12 +6,11 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	perrors "github.com/pkg/errors"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	perrors "github.com/pkg/errors"
 )
 
 func init() {
diff --git a/general/rest/go-server/pkg/user_provider2.go b/general/rest/go-server/pkg/user_provider2.go
index 1399d05..8287d31 100644
--- a/general/rest/go-server/pkg/user_provider2.go
+++ b/general/rest/go-server/pkg/user_provider2.go
@@ -6,12 +6,11 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	perrors "github.com/pkg/errors"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	perrors "github.com/pkg/errors"
 )
 
 func init() {
diff --git a/general/rest/go-server/tests/integration/userprovider_test.go b/general/rest/go-server/tests/integration/userprovider_test.go
index 98af57a..1f11ae2 100644
--- a/general/rest/go-server/tests/integration/userprovider_test.go
+++ b/general/rest/go-server/tests/integration/userprovider_test.go
@@ -25,11 +25,11 @@
 )
 
 import (
-	. "github.com/apache/dubbo-go-samples/general/rest/go-server/pkg"
+	"github.com/stretchr/testify/assert"
 )
 
 import (
-	"github.com/stretchr/testify/assert"
+	. "github.com/apache/dubbo-go-samples/general/rest/go-server/pkg"
 )
 
 func TestGetUser(t *testing.T) {
diff --git a/generic/go-client/cmd/client.go b/generic/go-client/cmd/client.go
index 269988e..0d9d4f3 100644
--- a/generic/go-client/cmd/client.go
+++ b/generic/go-client/cmd/client.go
@@ -27,11 +27,6 @@
 )
 
 import (
-	"github.com/apache/dubbo-go-samples/generic/go-client/pkg"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -41,6 +36,12 @@
 	"github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/generic/go-client/pkg"
 )
 
 var (
diff --git a/generic/go-server/cmd/server.go b/generic/go-server/cmd/server.go
index 041116a..7e2784e 100644
--- a/generic/go-server/cmd/server.go
+++ b/generic/go-server/cmd/server.go
@@ -27,7 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -37,7 +36,9 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
 
+import (
 	"github.com/apache/dubbo-go-samples/generic/go-server/pkg"
 )
 
diff --git a/generic/go-server/pkg/user.go b/generic/go-server/pkg/user.go
index a7eef28..dd62f6d 100644
--- a/generic/go-server/pkg/user.go
+++ b/generic/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/generic/go-server/tests/integration/main_test.go b/generic/go-server/tests/integration/main_test.go
index 41fe4f0..f24056e 100644
--- a/generic/go-server/tests/integration/main_test.go
+++ b/generic/go-server/tests/integration/main_test.go
@@ -20,6 +20,12 @@
 package integration
 
 import (
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -31,12 +37,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"os"
-	"testing"
-	"time"
-)
-
 var appName = "UserConsumerTest"
 var referenceConfig = config.ReferenceConfig{
 	InterfaceName: "org.apache.dubbo.UserProvider",
diff --git a/generic/go-server/tests/integration/userprovider_test.go b/generic/go-server/tests/integration/userprovider_test.go
index c272129..975e40b 100644
--- a/generic/go-server/tests/integration/userprovider_test.go
+++ b/generic/go-server/tests/integration/userprovider_test.go
@@ -21,12 +21,14 @@
 
 import (
 	"context"
-	"github.com/stretchr/testify/assert"
 	"testing"
 	"time"
 )
+
 import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestGetUser(t *testing.T) {
diff --git a/group/go-client/cmd/client.go b/group/go-client/cmd/client.go
index 8d42052..391bbd4 100644
--- a/group/go-client/cmd/client.go
+++ b/group/go-client/cmd/client.go
@@ -25,11 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/group/go-client/pkg"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -38,6 +33,12 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/group/go-client/pkg"
 )
 
 var userProviderA = new(pkg.UserProviderGroupA)
diff --git a/group/go-server-group-a/pkg/user.go b/group/go-server-group-a/pkg/user.go
index 47e2ec1..f61464f 100644
--- a/group/go-server-group-a/pkg/user.go
+++ b/group/go-server-group-a/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/group/go-server-group-a/tests/integration/main_test.go b/group/go-server-group-a/tests/integration/main_test.go
index 4a75f7a..b4a5139 100644
--- a/group/go-server-group-a/tests/integration/main_test.go
+++ b/group/go-server-group-a/tests/integration/main_test.go
@@ -28,11 +28,10 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
diff --git a/group/go-server-group-a/tests/integration/userprovider_test.go b/group/go-server-group-a/tests/integration/userprovider_test.go
index 3c4661a..6552e24 100644
--- a/group/go-server-group-a/tests/integration/userprovider_test.go
+++ b/group/go-server-group-a/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/group/go-server-group-b/pkg/user.go b/group/go-server-group-b/pkg/user.go
index f8d375a..221a208 100644
--- a/group/go-server-group-b/pkg/user.go
+++ b/group/go-server-group-b/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/group/go-server-group-b/tests/integration/main_test.go b/group/go-server-group-b/tests/integration/main_test.go
index 4a75f7a..b4a5139 100644
--- a/group/go-server-group-b/tests/integration/main_test.go
+++ b/group/go-server-group-b/tests/integration/main_test.go
@@ -28,11 +28,10 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
diff --git a/helloworld/go-client/cmd/client.go b/helloworld/go-client/cmd/client.go
index c44abbd..b6ac640 100644
--- a/helloworld/go-client/cmd/client.go
+++ b/helloworld/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/metric/go-client/cmd/client.go b/metric/go-client/cmd/client.go
index e06bf2a..d22c212 100644
--- a/metric/go-client/cmd/client.go
+++ b/metric/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/metric/go-server/cmd/server.go b/metric/go-server/cmd/server.go
index 6ed88ed..369a8b8 100644
--- a/metric/go-server/cmd/server.go
+++ b/metric/go-server/cmd/server.go
@@ -29,8 +29,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -41,6 +39,8 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
 
 import (
diff --git a/metric/go-server/pkg/user.go b/metric/go-server/pkg/user.go
index fb78eeb..df78163 100644
--- a/metric/go-server/pkg/user.go
+++ b/metric/go-server/pkg/user.go
@@ -19,17 +19,16 @@
 
 import (
 	"context"
-	"github.com/opentracing/opentracing-go"
 	"time"
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/opentracing/opentracing-go"
 )
 
 func init() {
diff --git a/metric/go-server/tests/integration/main_test.go b/metric/go-server/tests/integration/main_test.go
index 45de1c7..b4a5139 100644
--- a/metric/go-server/tests/integration/main_test.go
+++ b/metric/go-server/tests/integration/main_test.go
@@ -20,12 +20,18 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
@@ -33,13 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/metric/go-server/tests/integration/userprovider_test.go b/metric/go-server/tests/integration/userprovider_test.go
index 0ee7a59..776299a 100644
--- a/metric/go-server/tests/integration/userprovider_test.go
+++ b/metric/go-server/tests/integration/userprovider_test.go
@@ -25,6 +25,7 @@
 	"net/http"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/multi-registry/go-client/cmd/client.go b/multi-registry/go-client/cmd/client.go
index 9516cd5..22bce13 100644
--- a/multi-registry/go-client/cmd/client.go
+++ b/multi-registry/go-client/cmd/client.go
@@ -25,7 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -35,6 +34,7 @@
 	_ "github.com/apache/dubbo-go/registry/nacos"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/multi-registry/go-server/cmd/server.go b/multi-registry/go-server/cmd/server.go
index 0d538c9..388188b 100644
--- a/multi-registry/go-server/cmd/server.go
+++ b/multi-registry/go-server/cmd/server.go
@@ -27,7 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
diff --git a/multi-registry/go-server/pkg/user.go b/multi-registry/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/multi-registry/go-server/pkg/user.go
+++ b/multi-registry/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/multi-registry/go-server/tests/integration/main_test.go b/multi-registry/go-server/tests/integration/main_test.go
index a6c66da..d910b0d 100644
--- a/multi-registry/go-server/tests/integration/main_test.go
+++ b/multi-registry/go-server/tests/integration/main_test.go
@@ -20,6 +20,13 @@
 package integration
 
 import (
+	"context"
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -32,13 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/multi-registry/go-server/tests/integration/userprovider_test.go b/multi-registry/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/multi-registry/go-server/tests/integration/userprovider_test.go
+++ b/multi-registry/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/multi-zone/go-client/cmd/client.go b/multi-zone/go-client/cmd/client.go
index 6095f55..a72f62e 100644
--- a/multi-zone/go-client/cmd/client.go
+++ b/multi-zone/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
@@ -40,7 +41,6 @@
 	"github.com/apache/dubbo-go-samples/multi-zone/go-client/pkg"
 )
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
 func main() {
 	hessian.RegisterPOJO(&pkg.User{})
 	userProvider := new(pkg.UserProvider)
diff --git a/multi-zone/go-client/tests/integration/main_test.go b/multi-zone/go-client/tests/integration/main_test.go
index e0d834e..44b9717 100644
--- a/multi-zone/go-client/tests/integration/main_test.go
+++ b/multi-zone/go-client/tests/integration/main_test.go
@@ -20,13 +20,17 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-	"github.com/apache/dubbo-go-samples/multi-zone/go-client/pkg"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
@@ -34,9 +38,7 @@
 )
 
 import (
-	"os"
-	"testing"
-	"time"
+	"github.com/apache/dubbo-go-samples/multi-zone/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/multi-zone/go-client/tests/integration/userprovider_test.go b/multi-zone/go-client/tests/integration/userprovider_test.go
index 098445c..2961b57 100644
--- a/multi-zone/go-client/tests/integration/userprovider_test.go
+++ b/multi-zone/go-client/tests/integration/userprovider_test.go
@@ -21,14 +21,19 @@
 
 import (
 	"context"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go-samples/multi-zone/go-client/pkg"
 	"testing"
 )
+
 import (
+	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/stretchr/testify/assert"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/multi-zone/go-client/pkg"
+)
+
 func TestGetUser(t *testing.T) {
 	ctx := context.WithValue(context.Background(), constant.REGISTRY_KEY+"."+constant.ZONE_FORCE_KEY, true)
 
diff --git a/multi-zone/go-server-hz/pkg/user.go b/multi-zone/go-server-hz/pkg/user.go
index b75b3fc..a637df7 100644
--- a/multi-zone/go-server-hz/pkg/user.go
+++ b/multi-zone/go-server-hz/pkg/user.go
@@ -24,6 +24,7 @@
 
 import (
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/multi-zone/go-server-hz/tests/integration/userprovider_test.go b/multi-zone/go-server-hz/tests/integration/userprovider_test.go
index 89988b7..a506b8d 100644
--- a/multi-zone/go-server-hz/tests/integration/userprovider_test.go
+++ b/multi-zone/go-server-hz/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/multi-zone/go-server-sh/pkg/user.go b/multi-zone/go-server-sh/pkg/user.go
index b75b3fc..a637df7 100644
--- a/multi-zone/go-server-sh/pkg/user.go
+++ b/multi-zone/go-server-sh/pkg/user.go
@@ -24,6 +24,7 @@
 
 import (
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/multi-zone/go-server-sh/tests/integration/main_test.go b/multi-zone/go-server-sh/tests/integration/main_test.go
index f79029c..b4a5139 100644
--- a/multi-zone/go-server-sh/tests/integration/main_test.go
+++ b/multi-zone/go-server-sh/tests/integration/main_test.go
@@ -39,8 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/multi-zone/go-server-sh/tests/integration/userprovider_test.go b/multi-zone/go-server-sh/tests/integration/userprovider_test.go
index c8d3dd8..04ab061 100644
--- a/multi-zone/go-server-sh/tests/integration/userprovider_test.go
+++ b/multi-zone/go-server-sh/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/openzipkin/go-client/cmd/client.go b/openzipkin/go-client/cmd/client.go
index 872ef8c..53e1c11 100644
--- a/openzipkin/go-client/cmd/client.go
+++ b/openzipkin/go-client/cmd/client.go
@@ -19,14 +19,14 @@
 
 import (
 	"context"
-	"contrib.go.opencensus.io/exporter/prometheus"
-	"go.opencensus.io/stats/view"
 	"math/rand"
 	"os"
 	"time"
 )
 
 import (
+	"contrib.go.opencensus.io/exporter/prometheus"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -36,12 +36,17 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
-	// tracing zipkin & prometheus
+
 	"github.com/opentracing/opentracing-go"
+
 	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
 	"github.com/openzipkin/zipkin-go"
 	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
+
+	"go.opencensus.io/stats/view"
 )
 
 import (
diff --git a/openzipkin/go-server-a/cmd/server.go b/openzipkin/go-server-a/cmd/server.go
index fc06874..c90b3d0 100644
--- a/openzipkin/go-server-a/cmd/server.go
+++ b/openzipkin/go-server-a/cmd/server.go
@@ -36,11 +36,13 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 
-	// tracing
 	"github.com/opentracing/opentracing-go"
+
 	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
 	"github.com/openzipkin/zipkin-go"
 	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
diff --git a/openzipkin/go-server-a/pkg/user.go b/openzipkin/go-server-a/pkg/user.go
index d0ca328..2251983 100644
--- a/openzipkin/go-server-a/pkg/user.go
+++ b/openzipkin/go-server-a/pkg/user.go
@@ -26,6 +26,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/openzipkin/go-server-a/tests/integration/main_test.go b/openzipkin/go-server-a/tests/integration/main_test.go
index 4a75f7a..b4a5139 100644
--- a/openzipkin/go-server-a/tests/integration/main_test.go
+++ b/openzipkin/go-server-a/tests/integration/main_test.go
@@ -28,11 +28,10 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
diff --git a/openzipkin/go-server-a/tests/integration/userprovider_test.go b/openzipkin/go-server-a/tests/integration/userprovider_test.go
index 3c4661a..6552e24 100644
--- a/openzipkin/go-server-a/tests/integration/userprovider_test.go
+++ b/openzipkin/go-server-a/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/openzipkin/go-server-b/cmd/server.go b/openzipkin/go-server-b/cmd/server.go
index 17dfc6c..7c75247 100644
--- a/openzipkin/go-server-b/cmd/server.go
+++ b/openzipkin/go-server-b/cmd/server.go
@@ -36,10 +36,13 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
-	// trace: zipkin
+
 	"github.com/opentracing/opentracing-go"
+
 	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
 	"github.com/openzipkin/zipkin-go"
 	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
diff --git a/openzipkin/go-server-b/pkg/user.go b/openzipkin/go-server-b/pkg/user.go
index aee528a..f1f841d 100644
--- a/openzipkin/go-server-b/pkg/user.go
+++ b/openzipkin/go-server-b/pkg/user.go
@@ -26,6 +26,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/openzipkin/go-server-b/tests/integration/main_test.go b/openzipkin/go-server-b/tests/integration/main_test.go
index 4a75f7a..b4a5139 100644
--- a/openzipkin/go-server-b/tests/integration/main_test.go
+++ b/openzipkin/go-server-b/tests/integration/main_test.go
@@ -28,11 +28,10 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
diff --git a/registry/etcd/go-client/cmd/client.go b/registry/etcd/go-client/cmd/client.go
index 1a16c1a..99ca471 100644
--- a/registry/etcd/go-client/cmd/client.go
+++ b/registry/etcd/go-client/cmd/client.go
@@ -25,11 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/etcd/go-client/pkg"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -38,6 +33,12 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/etcdv3"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/etcd/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/etcd/go-server/cmd/server.go b/registry/etcd/go-server/cmd/server.go
index 1d06639..5fa2e8c 100644
--- a/registry/etcd/go-server/cmd/server.go
+++ b/registry/etcd/go-server/cmd/server.go
@@ -27,8 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/etcd/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -40,6 +38,10 @@
 	_ "github.com/apache/dubbo-go/registry/protocol"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/etcd/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/etcd/go-server/pkg/user.go b/registry/etcd/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/etcd/go-server/pkg/user.go
+++ b/registry/etcd/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/etcd/go-server/tests/integration/main_test.go b/registry/etcd/go-server/tests/integration/main_test.go
index 2611d11..b22e364 100644
--- a/registry/etcd/go-server/tests/integration/main_test.go
+++ b/registry/etcd/go-server/tests/integration/main_test.go
@@ -20,25 +20,24 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/registry/etcdv3"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-)
-
-import (
 	"context"
 	"os"
 	"testing"
 	"time"
 )
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/etcdv3"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+)
+
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/etcd/go-server/tests/integration/userprovider_test.go b/registry/etcd/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/etcd/go-server/tests/integration/userprovider_test.go
+++ b/registry/etcd/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/nacos/go-client/cmd/client.go b/registry/nacos/go-client/cmd/client.go
index 72037c3..c9e0117 100644
--- a/registry/nacos/go-client/cmd/client.go
+++ b/registry/nacos/go-client/cmd/client.go
@@ -25,11 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/nacos/go-client/pkg"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -38,6 +33,12 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/nacos"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/nacos/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/nacos/go-server/pkg/user.go b/registry/nacos/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/nacos/go-server/pkg/user.go
+++ b/registry/nacos/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/nacos/go-server/tests/integration/main_test.go b/registry/nacos/go-server/tests/integration/main_test.go
index a6a81e4..eb1bc0c 100644
--- a/registry/nacos/go-server/tests/integration/main_test.go
+++ b/registry/nacos/go-server/tests/integration/main_test.go
@@ -20,25 +20,24 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/config"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/registry/nacos"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-)
-
-import (
 	"context"
 	"os"
 	"testing"
 	"time"
 )
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/nacos"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+)
+
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/nacos/go-server/tests/integration/userprovider_test.go b/registry/nacos/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/nacos/go-server/tests/integration/userprovider_test.go
+++ b/registry/nacos/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/servicediscovery/consul/go-client/cmd/client.go b/registry/servicediscovery/consul/go-client/cmd/client.go
index d9b46af..0be5b6c 100644
--- a/registry/servicediscovery/consul/go-client/cmd/client.go
+++ b/registry/servicediscovery/consul/go-client/cmd/client.go
@@ -27,30 +27,28 @@
 )
 
 import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/consul/go-client/pkg/pojo"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-
 	_ "github.com/apache/dubbo-go/metadata/mapping/dynamic"
 	_ "github.com/apache/dubbo-go/metadata/report/consul"
 	_ "github.com/apache/dubbo-go/metadata/service/remote"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/consul"
+	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/consul/go-client/pkg/pojo"
+)
+
 var (
 	survivalTimeout int = 10e9
 )
diff --git a/registry/servicediscovery/consul/go-server/cmd/server.go b/registry/servicediscovery/consul/go-server/cmd/server.go
index b3a571b..ffc5857 100644
--- a/registry/servicediscovery/consul/go-server/cmd/server.go
+++ b/registry/servicediscovery/consul/go-server/cmd/server.go
@@ -26,30 +26,27 @@
 )
 
 import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/consul/go-server/pkg/pojo"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/config"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/registry/consul"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/metadata/mapping/memory"
 	_ "github.com/apache/dubbo-go/metadata/report/consul"
 	_ "github.com/apache/dubbo-go/metadata/service/remote"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
+	_ "github.com/apache/dubbo-go/registry/consul"
+	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/consul/go-server/pkg/pojo"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/servicediscovery/consul/go-server/pkg/pojo/user.go b/registry/servicediscovery/consul/go-server/pkg/pojo/user.go
index e011f01..4e59463 100644
--- a/registry/servicediscovery/consul/go-server/pkg/pojo/user.go
+++ b/registry/servicediscovery/consul/go-server/pkg/pojo/user.go
@@ -24,9 +24,7 @@
 
 import (
 	"github.com/apache/dubbo-go/config"
-)
 
-import (
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/registry/servicediscovery/consul/go-server/tests/integration/main_test.go b/registry/servicediscovery/consul/go-server/tests/integration/main_test.go
index 1c6a64b..88a7662 100644
--- a/registry/servicediscovery/consul/go-server/tests/integration/main_test.go
+++ b/registry/servicediscovery/consul/go-server/tests/integration/main_test.go
@@ -28,7 +28,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
diff --git a/registry/servicediscovery/consul/go-server/tests/integration/userprovider_test.go b/registry/servicediscovery/consul/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/servicediscovery/consul/go-server/tests/integration/userprovider_test.go
+++ b/registry/servicediscovery/consul/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/servicediscovery/etcd/go-client/cmd/client.go b/registry/servicediscovery/etcd/go-client/cmd/client.go
index bb167d8..021c58f 100644
--- a/registry/servicediscovery/etcd/go-client/cmd/client.go
+++ b/registry/servicediscovery/etcd/go-client/cmd/client.go
@@ -25,12 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-client/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -44,6 +38,12 @@
 	_ "github.com/apache/dubbo-go/registry/etcdv3"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/servicediscovery/etcd/go-server/cmd/server.go b/registry/servicediscovery/etcd/go-server/cmd/server.go
index 0c7ae04..07bee9f 100644
--- a/registry/servicediscovery/etcd/go-server/cmd/server.go
+++ b/registry/servicediscovery/etcd/go-server/cmd/server.go
@@ -27,8 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -45,6 +43,10 @@
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/servicediscovery/etcd/go-server/pkg/user.go b/registry/servicediscovery/etcd/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/servicediscovery/etcd/go-server/pkg/user.go
+++ b/registry/servicediscovery/etcd/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/servicediscovery/etcd/go-server/tests/integration/main_test.go b/registry/servicediscovery/etcd/go-server/tests/integration/main_test.go
index 90d99a4..6f4c991 100644
--- a/registry/servicediscovery/etcd/go-server/tests/integration/main_test.go
+++ b/registry/servicediscovery/etcd/go-server/tests/integration/main_test.go
@@ -20,8 +20,14 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -37,13 +43,6 @@
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/servicediscovery/etcd/go-server/tests/integration/userprovider_test.go b/registry/servicediscovery/etcd/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/servicediscovery/etcd/go-server/tests/integration/userprovider_test.go
+++ b/registry/servicediscovery/etcd/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/servicediscovery/file/go-client/cmd/client.go b/registry/servicediscovery/file/go-client/cmd/client.go
index b6f37a9..de86cd6 100644
--- a/registry/servicediscovery/file/go-client/cmd/client.go
+++ b/registry/servicediscovery/file/go-client/cmd/client.go
@@ -25,12 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/file/go-client/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -43,6 +37,12 @@
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/file/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/servicediscovery/file/go-server/cmd/server.go b/registry/servicediscovery/file/go-server/cmd/server.go
index 6c2b0b5..2e8eb8f 100644
--- a/registry/servicediscovery/file/go-server/cmd/server.go
+++ b/registry/servicediscovery/file/go-server/cmd/server.go
@@ -27,8 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/file/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -45,6 +43,10 @@
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/file/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/servicediscovery/file/go-server/pkg/user.go b/registry/servicediscovery/file/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/servicediscovery/file/go-server/pkg/user.go
+++ b/registry/servicediscovery/file/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/servicediscovery/file/go-server/tests/integration/main_test.go b/registry/servicediscovery/file/go-server/tests/integration/main_test.go
index feb6fe2..506ffba 100644
--- a/registry/servicediscovery/file/go-server/tests/integration/main_test.go
+++ b/registry/servicediscovery/file/go-server/tests/integration/main_test.go
@@ -20,8 +20,14 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -36,13 +42,6 @@
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/servicediscovery/file/go-server/tests/integration/userprovider_test.go b/registry/servicediscovery/file/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/servicediscovery/file/go-server/tests/integration/userprovider_test.go
+++ b/registry/servicediscovery/file/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/servicediscovery/nacos/go-client/cmd/client.go b/registry/servicediscovery/nacos/go-client/cmd/client.go
index 8440c16..a49aef9 100644
--- a/registry/servicediscovery/nacos/go-client/cmd/client.go
+++ b/registry/servicediscovery/nacos/go-client/cmd/client.go
@@ -25,12 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-client/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -45,6 +39,12 @@
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/etcd/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/servicediscovery/nacos/go-server/cmd/server.go b/registry/servicediscovery/nacos/go-server/cmd/server.go
index 4084ab5..2a1e71d 100644
--- a/registry/servicediscovery/nacos/go-server/cmd/server.go
+++ b/registry/servicediscovery/nacos/go-server/cmd/server.go
@@ -27,8 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/nacos/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -46,6 +44,10 @@
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/nacos/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/servicediscovery/nacos/go-server/pkg/user.go b/registry/servicediscovery/nacos/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/servicediscovery/nacos/go-server/pkg/user.go
+++ b/registry/servicediscovery/nacos/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/servicediscovery/nacos/go-server/tests/integration/main_test.go b/registry/servicediscovery/nacos/go-server/tests/integration/main_test.go
index cdc8b96..89acd08 100644
--- a/registry/servicediscovery/nacos/go-server/tests/integration/main_test.go
+++ b/registry/servicediscovery/nacos/go-server/tests/integration/main_test.go
@@ -20,8 +20,14 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -38,13 +44,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/servicediscovery/nacos/go-server/tests/integration/userprovider_test.go b/registry/servicediscovery/nacos/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/servicediscovery/nacos/go-server/tests/integration/userprovider_test.go
+++ b/registry/servicediscovery/nacos/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/registry/servicediscovery/zookeeper/go-client/cmd/client.go b/registry/servicediscovery/zookeeper/go-client/cmd/client.go
index 9f82758..8088f8f 100644
--- a/registry/servicediscovery/zookeeper/go-client/cmd/client.go
+++ b/registry/servicediscovery/zookeeper/go-client/cmd/client.go
@@ -25,12 +25,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-)
-
-import (
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/zookeeper/go-client/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
@@ -43,6 +37,12 @@
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/servicediscovery"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+)
+
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/zookeeper/go-client/pkg"
 )
 
 var userProvider = new(pkg.UserProvider)
diff --git a/registry/servicediscovery/zookeeper/go-server/cmd/server.go b/registry/servicediscovery/zookeeper/go-server/cmd/server.go
index 80fe85c..0124682 100644
--- a/registry/servicediscovery/zookeeper/go-server/cmd/server.go
+++ b/registry/servicediscovery/zookeeper/go-server/cmd/server.go
@@ -27,8 +27,6 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/apache/dubbo-go-samples/registry/servicediscovery/zookeeper/go-server/pkg"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -45,6 +43,10 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
+import (
+	"github.com/apache/dubbo-go-samples/registry/servicediscovery/zookeeper/go-server/pkg"
+)
+
 var (
 	survivalTimeout = int(3e9)
 )
diff --git a/registry/servicediscovery/zookeeper/go-server/pkg/user.go b/registry/servicediscovery/zookeeper/go-server/pkg/user.go
index 9920a59..b778495 100644
--- a/registry/servicediscovery/zookeeper/go-server/pkg/user.go
+++ b/registry/servicediscovery/zookeeper/go-server/pkg/user.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
 )
 
 func init() {
diff --git a/registry/servicediscovery/zookeeper/go-server/tests/integration/main_test.go b/registry/servicediscovery/zookeeper/go-server/tests/integration/main_test.go
index fa94ebc..0486cc7 100644
--- a/registry/servicediscovery/zookeeper/go-server/tests/integration/main_test.go
+++ b/registry/servicediscovery/zookeeper/go-server/tests/integration/main_test.go
@@ -20,17 +20,21 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
-	//_ "github.com/apache/dubbo-go/metadata/mapping/dynamic"
 	_ "github.com/apache/dubbo-go/metadata/mapping/memory"
 	_ "github.com/apache/dubbo-go/metadata/report/zookeeper"
-	//_ "github.com/apache/dubbo-go/metadata/service/remote"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
@@ -38,13 +42,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/registry/servicediscovery/zookeeper/go-server/tests/integration/userprovider_test.go b/registry/servicediscovery/zookeeper/go-server/tests/integration/userprovider_test.go
index dc29d9a..7183e64 100644
--- a/registry/servicediscovery/zookeeper/go-server/tests/integration/userprovider_test.go
+++ b/registry/servicediscovery/zookeeper/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/router/condition/go-client/cmd/client.go b/router/condition/go-client/cmd/client.go
index 4f9e495..f6d1773 100644
--- a/router/condition/go-client/cmd/client.go
+++ b/router/condition/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
@@ -40,8 +41,6 @@
 	"github.com/apache/dubbo-go-samples/router/condition/go-client/pkg"
 )
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
-// need to setup environment variable "CONF_ROUTER_FILE_PATH" to "conf/router_config.yml" before run
 func main() {
 	userProvider := new(pkg.UserProvider)
 	config.SetConsumerService(userProvider)
diff --git a/router/condition/go-server/tests/integration/main_test.go b/router/condition/go-server/tests/integration/main_test.go
index 758cc00..9279543 100644
--- a/router/condition/go-server/tests/integration/main_test.go
+++ b/router/condition/go-server/tests/integration/main_test.go
@@ -20,8 +20,14 @@
 package integration
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
+	"context"
+	"os"
+	"testing"
+	"time"
+)
 
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/cluster/router/condition"
@@ -33,13 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/router/condition/go-server/tests/integration/userprovider_test.go b/router/condition/go-server/tests/integration/userprovider_test.go
index 05c607f..f4c030c 100644
--- a/router/condition/go-server/tests/integration/userprovider_test.go
+++ b/router/condition/go-server/tests/integration/userprovider_test.go
@@ -23,6 +23,7 @@
 	"context"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/router/tag/go-client/cmd/client.go b/router/tag/go-client/cmd/client.go
index 1586ec9..bee40d1 100644
--- a/router/tag/go-client/cmd/client.go
+++ b/router/tag/go-client/cmd/client.go
@@ -41,6 +41,7 @@
 	_ "github.com/apache/dubbo-go/registry/directory"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
diff --git a/router/tag/go-server/tests/integration/main_test.go b/router/tag/go-server/tests/integration/main_test.go
index 8d37927..1ec5da9 100644
--- a/router/tag/go-server/tests/integration/main_test.go
+++ b/router/tag/go-server/tests/integration/main_test.go
@@ -20,6 +20,13 @@
 package integration
 
 import (
+	"context"
+	"os"
+	"testing"
+	"time"
+)
+
+import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -32,13 +39,6 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-)
-
 var userProvider = new(UserProvider)
 
 func TestMain(m *testing.M) {
diff --git a/router/tag/go-server/tests/integration/userprovider_test.go b/router/tag/go-server/tests/integration/userprovider_test.go
index 863c533..e4dbb83 100644
--- a/router/tag/go-server/tests/integration/userprovider_test.go
+++ b/router/tag/go-server/tests/integration/userprovider_test.go
@@ -26,6 +26,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/seata/client/app/client.go b/seata/client/app/client.go
index 451fdbf..2a7809e 100644
--- a/seata/client/app/client.go
+++ b/seata/client/app/client.go
@@ -27,24 +27,23 @@
 )
 
 import (
-	"github.com/apache/dubbo-go-samples/seata/client/app/svc"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	config2 "github.com/transaction-wg/seata-golang/pkg/client/config"
 	"github.com/transaction-wg/seata-golang/pkg/client/tm"
+)
 
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/registry/zookeeper"
+import (
+	"github.com/apache/dubbo-go-samples/seata/client/app/svc"
 )
 
 const (
diff --git a/seata/client/app/svc/svc.go b/seata/client/app/svc/svc.go
index 5a53342..8d219d1 100644
--- a/seata/client/app/svc/svc.go
+++ b/seata/client/app/svc/svc.go
@@ -25,6 +25,7 @@
 import (
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/config"
+
 	context2 "github.com/transaction-wg/seata-golang/pkg/client/context"
 	"github.com/transaction-wg/seata-golang/pkg/client/tm"
 )
diff --git a/seata/order-svc/app/dao/dao.go b/seata/order-svc/app/dao/dao.go
index a216fae..ece4584 100644
--- a/seata/order-svc/app/dao/dao.go
+++ b/seata/order-svc/app/dao/dao.go
@@ -18,15 +18,14 @@
 package dao
 
 import (
-	hessian "github.com/apache/dubbo-go-hessian2"
 	"time"
 )
 
 import (
-	"github.com/bwmarrin/snowflake"
-)
+	hessian "github.com/apache/dubbo-go-hessian2"
 
-import (
+	"github.com/bwmarrin/snowflake"
+
 	"github.com/transaction-wg/seata-golang/pkg/client/at/exec"
 	"github.com/transaction-wg/seata-golang/pkg/client/context"
 )
diff --git a/seata/order-svc/app/order_svc.go b/seata/order-svc/app/order_svc.go
index 1cbc4bc..100136d 100644
--- a/seata/order-svc/app/order_svc.go
+++ b/seata/order-svc/app/order_svc.go
@@ -23,6 +23,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	context2 "github.com/transaction-wg/seata-golang/pkg/client/context"
 )
 
diff --git a/seata/order-svc/app/server.go b/seata/order-svc/app/server.go
index c45c1a1..95b71b0 100644
--- a/seata/order-svc/app/server.go
+++ b/seata/order-svc/app/server.go
@@ -27,24 +27,23 @@
 )
 
 import (
-	dao2 "github.com/apache/dubbo-go-samples/seata/order-svc/app/dao"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	"github.com/transaction-wg/seata-golang/pkg/client/at/exec"
 	config2 "github.com/transaction-wg/seata-golang/pkg/client/config"
+)
 
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/registry/zookeeper"
+import (
+	dao2 "github.com/apache/dubbo-go-samples/seata/order-svc/app/dao"
 )
 
 const (
diff --git a/seata/product-svc/app/dao/dao.go b/seata/product-svc/app/dao/dao.go
index 5e5fe4f..a9f5e89 100644
--- a/seata/product-svc/app/dao/dao.go
+++ b/seata/product-svc/app/dao/dao.go
@@ -19,6 +19,7 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
+
 	"github.com/transaction-wg/seata-golang/pkg/client/at/exec"
 	"github.com/transaction-wg/seata-golang/pkg/client/context"
 )
diff --git a/seata/product-svc/app/product_svc.go b/seata/product-svc/app/product_svc.go
index 9d97211..d32c518 100644
--- a/seata/product-svc/app/product_svc.go
+++ b/seata/product-svc/app/product_svc.go
@@ -23,6 +23,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	context2 "github.com/transaction-wg/seata-golang/pkg/client/context"
 )
 
diff --git a/seata/product-svc/app/server.go b/seata/product-svc/app/server.go
index f39b1ac..68db9be 100644
--- a/seata/product-svc/app/server.go
+++ b/seata/product-svc/app/server.go
@@ -27,24 +27,23 @@
 )
 
 import (
-	dao2 "github.com/apache/dubbo-go-samples/seata/product-svc/app/dao"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	"github.com/transaction-wg/seata-golang/pkg/client/at/exec"
 	config2 "github.com/transaction-wg/seata-golang/pkg/client/config"
+)
 
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
-	_ "github.com/apache/dubbo-go/registry/zookeeper"
+import (
+	dao2 "github.com/apache/dubbo-go-samples/seata/product-svc/app/dao"
 )
 
 const (
diff --git a/shopping-order/go-client/cmd/client.go b/shopping-order/go-client/cmd/client.go
index 7486877..f5e10e0 100644
--- a/shopping-order/go-client/cmd/client.go
+++ b/shopping-order/go-client/cmd/client.go
@@ -36,6 +36,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	seataConfig "github.com/transaction-wg/seata-golang/pkg/client/config"
 	"github.com/transaction-wg/seata-golang/pkg/client/tm"
diff --git a/shopping-order/go-client/pkg/svc.go b/shopping-order/go-client/pkg/svc.go
index 2f8d9ae..1dcba91 100644
--- a/shopping-order/go-client/pkg/svc.go
+++ b/shopping-order/go-client/pkg/svc.go
@@ -25,6 +25,7 @@
 import (
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/config"
+
 	seataContext "github.com/transaction-wg/seata-golang/pkg/client/context"
 	"github.com/transaction-wg/seata-golang/pkg/client/tm"
 )
diff --git a/shopping-order/go-server-order/cmd/order_svc.go b/shopping-order/go-server-order/cmd/order_svc.go
index 2eb6659..0521b08 100644
--- a/shopping-order/go-server-order/cmd/order_svc.go
+++ b/shopping-order/go-server-order/cmd/order_svc.go
@@ -23,6 +23,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/opentrx/mysql"
 )
 
diff --git a/shopping-order/go-server-order/cmd/server.go b/shopping-order/go-server-order/cmd/server.go
index 0feb02b..d45eb76 100644
--- a/shopping-order/go-server-order/cmd/server.go
+++ b/shopping-order/go-server-order/cmd/server.go
@@ -37,7 +37,9 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/nacos"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+
 	"github.com/opentrx/mysql"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	seataConfig "github.com/transaction-wg/seata-golang/pkg/client/config"
 )
diff --git a/shopping-order/go-server-order/pkg/dao/dao.go b/shopping-order/go-server-order/pkg/dao/dao.go
index 99c9865..79f1272 100644
--- a/shopping-order/go-server-order/pkg/dao/dao.go
+++ b/shopping-order/go-server-order/pkg/dao/dao.go
@@ -25,6 +25,7 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
+
 	"github.com/bwmarrin/snowflake"
 )
 
diff --git a/shopping-order/go-server-product/cmd/product_svc.go b/shopping-order/go-server-product/cmd/product_svc.go
index 1b5e21e..03c659e 100644
--- a/shopping-order/go-server-product/cmd/product_svc.go
+++ b/shopping-order/go-server-product/cmd/product_svc.go
@@ -23,6 +23,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/opentrx/mysql"
 )
 
diff --git a/shopping-order/go-server-product/cmd/server.go b/shopping-order/go-server-product/cmd/server.go
index fa39efb..8b0607f 100644
--- a/shopping-order/go-server-product/cmd/server.go
+++ b/shopping-order/go-server-product/cmd/server.go
@@ -37,7 +37,9 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/nacos"
 	_ "github.com/apache/dubbo-go/registry/protocol"
+
 	"github.com/opentrx/mysql"
+
 	"github.com/transaction-wg/seata-golang/pkg/client"
 	seataConfig "github.com/transaction-wg/seata-golang/pkg/client/config"
 )
diff --git a/tls/go-client/cmd/client.go b/tls/go-client/cmd/client.go
index 9e97f6c..9ed5f7c 100755
--- a/tls/go-client/cmd/client.go
+++ b/tls/go-client/cmd/client.go
@@ -29,6 +29,7 @@
 
 import (
 	getty "github.com/apache/dubbo-getty"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -39,6 +40,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	gxlog "github.com/dubbogo/gost/log"
 )
 
@@ -103,4 +105,4 @@
 			return
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/tls/go-server/cmd/server.go b/tls/go-server/cmd/server.go
index 9f59211..7325b19 100755
--- a/tls/go-server/cmd/server.go
+++ b/tls/go-server/cmd/server.go
@@ -28,6 +28,7 @@
 
 import (
 	getty "github.com/apache/dubbo-getty"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
@@ -44,7 +45,6 @@
 	"github.com/apache/dubbo-go-samples/tls/go-server/pkg"
 )
 
-// survival time
 var (
 	survivalTimeout = 	int(3e9)
 )
@@ -96,4 +96,4 @@
 			return
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/tls/go-server/pkg/user.go b/tls/go-server/pkg/user.go
index e295a11..936eabb 100755
--- a/tls/go-server/pkg/user.go
+++ b/tls/go-server/pkg/user.go
@@ -49,4 +49,4 @@
 
 func (u User) JavaClassName() string {
 	return "org.apache.dubbo.User"
-}
\ No newline at end of file
+}
diff --git a/tls/go-server/tests/integration/main_test.go b/tls/go-server/tests/integration/main_test.go
index 5abb8f7..89d1c93 100644
--- a/tls/go-server/tests/integration/main_test.go
+++ b/tls/go-server/tests/integration/main_test.go
@@ -29,6 +29,7 @@
 
 import (
 	getty "github.com/apache/dubbo-getty"
+
 	hessian "github.com/apache/dubbo-go-hessian2"
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
diff --git a/tracing/dubbo/go-client/app/client.go b/tracing/dubbo/go-client/app/client.go
index 1e739f6..e6c9edf 100644
--- a/tracing/dubbo/go-client/app/client.go
+++ b/tracing/dubbo/go-client/app/client.go
@@ -28,25 +28,24 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/dubbogo/gost/log"
-	"github.com/opentracing/opentracing-go"
-	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
-	"github.com/openzipkin/zipkin-go"
-	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/opentracing/opentracing-go"
+
+	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
+	"github.com/openzipkin/zipkin-go"
+	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
 
 var (
diff --git a/tracing/dubbo/go-server/app/server.go b/tracing/dubbo/go-server/app/server.go
index eada598..9b5444d 100644
--- a/tracing/dubbo/go-server/app/server.go
+++ b/tracing/dubbo/go-server/app/server.go
@@ -27,24 +27,22 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
-	"github.com/opentracing/opentracing-go"
-	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
-	"github.com/openzipkin/zipkin-go"
-	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
-)
-
-import (
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/config"
-	_ "github.com/apache/dubbo-go/protocol/dubbo"
-	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/opentracing/opentracing-go"
+
+	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
+	"github.com/openzipkin/zipkin-go"
+	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
 
 var (
diff --git a/tracing/dubbo/go-server/app/user.go b/tracing/dubbo/go-server/app/user.go
index a96d42e..3745caa 100644
--- a/tracing/dubbo/go-server/app/user.go
+++ b/tracing/dubbo/go-server/app/user.go
@@ -23,13 +23,12 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	"github.com/opentracing/opentracing-go"
-)
-
-import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/opentracing/opentracing-go"
 )
 
 func init() {
diff --git a/tracing/grpc/go-client/app/client.go b/tracing/grpc/go-client/app/client.go
index e433d53..a928c3a 100644
--- a/tracing/grpc/go-client/app/client.go
+++ b/tracing/grpc/go-client/app/client.go
@@ -27,12 +27,6 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	opentracing "github.com/opentracing/opentracing-go"
-	jaegercfg "github.com/uber/jaeger-client-go/config"
-)
-
-import (
 	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
 	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
@@ -43,6 +37,12 @@
 	_ "github.com/apache/dubbo-go/protocol/grpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+
+	opentracing "github.com/opentracing/opentracing-go"
+
+	jaegercfg "github.com/uber/jaeger-client-go/config"
 )
 
 var (
diff --git a/tracing/grpc/go-client/app/hello.go b/tracing/grpc/go-client/app/hello.go
index f3e6a8f..b4c859a 100644
--- a/tracing/grpc/go-client/app/hello.go
+++ b/tracing/grpc/go-client/app/hello.go
@@ -22,11 +22,9 @@
 )
 
 import (
-	"google.golang.org/grpc"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"google.golang.org/grpc"
 )
 
 var grpcGreeterImpl = new(GrpcGreeterImpl)
diff --git a/tracing/grpc/go-client/app/helloworld.pb.go b/tracing/grpc/go-client/app/helloworld.pb.go
index 75e18b9..1b54125 100644
--- a/tracing/grpc/go-client/app/helloworld.pb.go
+++ b/tracing/grpc/go-client/app/helloworld.pb.go
@@ -7,20 +7,21 @@
 	"context"
 	"fmt"
 	"math"
-
-	"github.com/golang/protobuf/proto"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
 )
 
 import (
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	"github.com/golang/protobuf/proto"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/tracing/grpc/go-server/app/helloworld.pb.go b/tracing/grpc/go-server/app/helloworld.pb.go
index 75e18b9..3b5a1dd 100644
--- a/tracing/grpc/go-server/app/helloworld.pb.go
+++ b/tracing/grpc/go-server/app/helloworld.pb.go
@@ -7,20 +7,20 @@
 	"context"
 	"fmt"
 	"math"
-
-	"github.com/golang/protobuf/proto"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
 )
 
 import (
 	"github.com/apache/dubbo-go/protocol"
 	dgrpc "github.com/apache/dubbo-go/protocol/grpc"
 	"github.com/apache/dubbo-go/protocol/invocation"
+
+	"github.com/golang/protobuf/proto"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
diff --git a/tracing/grpc/go-server/app/server.go b/tracing/grpc/go-server/app/server.go
index 5abdce4..f922f79 100644
--- a/tracing/grpc/go-server/app/server.go
+++ b/tracing/grpc/go-server/app/server.go
@@ -37,6 +37,7 @@
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 
 	opentracing "github.com/opentracing/opentracing-go"
+
 	jaegercfg "github.com/uber/jaeger-client-go/config"
 )
 
diff --git a/tracing/jsonrpc/go-client/app/client.go b/tracing/jsonrpc/go-client/app/client.go
index 4974ec5..3052740 100644
--- a/tracing/jsonrpc/go-client/app/client.go
+++ b/tracing/jsonrpc/go-client/app/client.go
@@ -27,25 +27,24 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	"github.com/opentracing/opentracing-go"
-	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
-	"github.com/openzipkin/zipkin-go"
-	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/opentracing/opentracing-go"
+
+	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
+	"github.com/openzipkin/zipkin-go"
+	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
 
 var (
diff --git a/tracing/jsonrpc/go-server/app/server.go b/tracing/jsonrpc/go-server/app/server.go
index 90f6042..caae38f 100644
--- a/tracing/jsonrpc/go-server/app/server.go
+++ b/tracing/jsonrpc/go-server/app/server.go
@@ -26,24 +26,22 @@
 )
 
 import (
-	"github.com/opentracing/opentracing-go"
-	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
-	"github.com/openzipkin/zipkin-go"
-	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
-)
-
-import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common/logger"
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/protocol/jsonrpc"
 	_ "github.com/apache/dubbo-go/registry/protocol"
-
-	_ "github.com/apache/dubbo-go/filter/filter_impl"
-
-	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
-	_ "github.com/apache/dubbo-go/cluster/loadbalance"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
+	"github.com/opentracing/opentracing-go"
+
+	zipkinot "github.com/openzipkin-contrib/zipkin-go-opentracing"
+
+	"github.com/openzipkin/zipkin-go"
+	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 )
 
 var (
diff --git a/tracing/jsonrpc/go-server/app/user_provider.go b/tracing/jsonrpc/go-server/app/user_provider.go
index cb6a60e..211473e 100644
--- a/tracing/jsonrpc/go-server/app/user_provider.go
+++ b/tracing/jsonrpc/go-server/app/user_provider.go
@@ -8,12 +8,12 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	"github.com/opentracing/opentracing-go"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	"github.com/opentracing/opentracing-go"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/tracing/jsonrpc/go-server/app/user_provider1.go b/tracing/jsonrpc/go-server/app/user_provider1.go
index 4b7af5a..8007234 100644
--- a/tracing/jsonrpc/go-server/app/user_provider1.go
+++ b/tracing/jsonrpc/go-server/app/user_provider1.go
@@ -7,11 +7,10 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/tracing/jsonrpc/go-server/app/user_provider2.go b/tracing/jsonrpc/go-server/app/user_provider2.go
index a5f9766..1726574 100644
--- a/tracing/jsonrpc/go-server/app/user_provider2.go
+++ b/tracing/jsonrpc/go-server/app/user_provider2.go
@@ -7,12 +7,11 @@
 )
 
 import (
-	"github.com/dubbogo/gost/log"
-	perrors "github.com/pkg/errors"
-)
-
-import (
 	"github.com/apache/dubbo-go/config"
+
+	"github.com/dubbogo/gost/log"
+
+	perrors "github.com/pkg/errors"
 )
 
 func init() {
diff --git a/version/go-client/cmd/client.go b/version/go-client/cmd/client.go
index a01094f..fb697de 100644
--- a/version/go-client/cmd/client.go
+++ b/version/go-client/cmd/client.go
@@ -33,6 +33,7 @@
 	_ "github.com/apache/dubbo-go/protocol/dubbo"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/version/go-server-v1/pkg/user.go b/version/go-server-v1/pkg/user.go
index 26f1017..cd1ad81 100644
--- a/version/go-server-v1/pkg/user.go
+++ b/version/go-server-v1/pkg/user.go
@@ -24,6 +24,7 @@
 
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/version/go-server-v1/tests/integration/userprovider_test.go b/version/go-server-v1/tests/integration/userprovider_test.go
index 6f9dadd..b38dcdb 100644
--- a/version/go-server-v1/tests/integration/userprovider_test.go
+++ b/version/go-server-v1/tests/integration/userprovider_test.go
@@ -28,7 +28,6 @@
 	"github.com/stretchr/testify/assert"
 )
 
-// in conf/client.yaml
 func TestGetUser(t *testing.T) {
 	user := &User{}
 	err := userProvider.GetUser(context.TODO(), []interface{}{"A001"}, user)
diff --git a/version/go-server-v2/pkg/user.go b/version/go-server-v2/pkg/user.go
index f2d6ff6..8560a48 100644
--- a/version/go-server-v2/pkg/user.go
+++ b/version/go-server-v2/pkg/user.go
@@ -25,6 +25,7 @@
 import (
 	hessian "github.com/apache/dubbo-go-hessian2"
 	"github.com/apache/dubbo-go/config"
+
 	"github.com/dubbogo/gost/log"
 )
 
diff --git a/version/go-server-v2/tests/integration/userprovider_test.go b/version/go-server-v2/tests/integration/userprovider_test.go
index a5d8154..fb83b01 100644
--- a/version/go-server-v2/tests/integration/userprovider_test.go
+++ b/version/go-server-v2/tests/integration/userprovider_test.go
@@ -28,7 +28,6 @@
 	"github.com/stretchr/testify/assert"
 )
 
-// in conf/client.yaml
 func TestGetUser(t *testing.T) {
 	user := &User{}
 	err := userProvider.GetUser(context.TODO(), []interface{}{"A001"}, user)