diff --git a/cmd/pixiu/pixiu.go b/cmd/pixiu/pixiu.go
index df2e99a..ceebd78 100644
--- a/cmd/pixiu/pixiu.go
+++ b/cmd/pixiu/pixiu.go
@@ -27,6 +27,7 @@
 import (
 	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
 	_ "github.com/apache/dubbo-go/metadata/service/inmemory"
+
 	"github.com/urfave/cli"
 )
 
diff --git a/pkg/client/dubbo/dubbo.go b/pkg/client/dubbo/dubbo.go
index 4bda642..21f1f39 100644
--- a/pkg/client/dubbo/dubbo.go
+++ b/pkg/client/dubbo/dubbo.go
@@ -28,7 +28,9 @@
 	"github.com/apache/dubbo-go/common/constant"
 	dg "github.com/apache/dubbo-go/config"
 	"github.com/apache/dubbo-go/protocol/dubbo"
+
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/pkg/errors"
 )
 
diff --git a/pkg/client/dubbo/dubbo_test.go b/pkg/client/dubbo/dubbo_test.go
index 1bd3f69..7f2b414 100644
--- a/pkg/client/dubbo/dubbo_test.go
+++ b/pkg/client/dubbo/dubbo_test.go
@@ -27,6 +27,7 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/client/dubbo/mapper.go b/pkg/client/dubbo/mapper.go
index efbf4f4..d3a998e 100644
--- a/pkg/client/dubbo/mapper.go
+++ b/pkg/client/dubbo/mapper.go
@@ -30,7 +30,9 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/pkg/errors"
+
 	"github.com/spf13/cast"
 )
 
diff --git a/pkg/client/dubbo/mapper_test.go b/pkg/client/dubbo/mapper_test.go
index 166b6a2..b4c2049 100644
--- a/pkg/client/dubbo/mapper_test.go
+++ b/pkg/client/dubbo/mapper_test.go
@@ -26,6 +26,7 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/client/http/http_test.go b/pkg/client/http/http_test.go
index c63f5c1..721e6bd 100644
--- a/pkg/client/http/http_test.go
+++ b/pkg/client/http/http_test.go
@@ -27,6 +27,7 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/client/http/mapper.go b/pkg/client/http/mapper.go
index ab28eb1..ce02bd8 100644
--- a/pkg/client/http/mapper.go
+++ b/pkg/client/http/mapper.go
@@ -30,6 +30,7 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/pkg/errors"
 )
 
diff --git a/pkg/client/http/mapper_test.go b/pkg/client/http/mapper_test.go
index f08bb61..8f5fdde 100644
--- a/pkg/client/http/mapper_test.go
+++ b/pkg/client/http/mapper_test.go
@@ -27,6 +27,7 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/client/mapper.go b/pkg/client/mapper.go
index 6269065..e6e9a9a 100644
--- a/pkg/client/mapper.go
+++ b/pkg/client/mapper.go
@@ -24,9 +24,9 @@
 )
 
 import (
-	"github.com/pkg/errors"
-
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
+	"github.com/pkg/errors"
 )
 
 import (
diff --git a/pkg/common/constant/pixiu.go b/pkg/common/constant/pixiu.go
index c9c6b10..dac5884 100644
--- a/pkg/common/constant/pixiu.go
+++ b/pkg/common/constant/pixiu.go
@@ -17,7 +17,9 @@
 
 package constant
 
-import "time"
+import (
+	"time"
+)
 
 // default timeout 1s.
 const (
diff --git a/pkg/common/yaml/yaml.go b/pkg/common/yaml/yaml.go
index 1cf93cf..7aeb71f 100644
--- a/pkg/common/yaml/yaml.go
+++ b/pkg/common/yaml/yaml.go
@@ -24,6 +24,7 @@
 
 import (
 	perrors "github.com/pkg/errors"
+
 	"gopkg.in/yaml.v2"
 )
 
diff --git a/pkg/config/api_config.go b/pkg/config/api_config.go
index 89fbcf1..266e75d 100644
--- a/pkg/config/api_config.go
+++ b/pkg/config/api_config.go
@@ -28,8 +28,11 @@
 import (
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	fr "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
+
 	etcdv3 "github.com/dubbogo/gost/database/kv/etcd/v3"
+
 	perrors "github.com/pkg/errors"
+
 	"go.etcd.io/etcd/api/v3/mvccpb"
 )
 
diff --git a/pkg/config/api_config_test.go b/pkg/config/api_config_test.go
index c864d5a..6439190 100644
--- a/pkg/config/api_config_test.go
+++ b/pkg/config/api_config_test.go
@@ -24,6 +24,7 @@
 
 import (
 	"github.com/ghodss/yaml"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/config/config_load.go b/pkg/config/config_load.go
index c9e5034..859df2c 100644
--- a/pkg/config/config_load.go
+++ b/pkg/config/config_load.go
@@ -25,6 +25,7 @@
 
 import (
 	"github.com/ghodss/yaml"
+
 	"github.com/goinggo/mapstructure"
 )
 
diff --git a/pkg/context/http/context_test.go b/pkg/context/http/context_test.go
index 8caba7e..8358468 100644
--- a/pkg/context/http/context_test.go
+++ b/pkg/context/http/context_test.go
@@ -23,11 +23,9 @@
 
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
-	"github.com/stretchr/testify/assert"
-)
-
-import (
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/context"
+
+	"github.com/stretchr/testify/assert"
 )
 
 import (
diff --git a/pkg/filter/header/header_test.go b/pkg/filter/header/header_test.go
index f1a9a88..9ff7db8 100644
--- a/pkg/filter/header/header_test.go
+++ b/pkg/filter/header/header_test.go
@@ -27,6 +27,7 @@
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/filter/metric/metric.go b/pkg/filter/metric/metric.go
index 8c29145..499ee14 100644
--- a/pkg/filter/metric/metric.go
+++ b/pkg/filter/metric/metric.go
@@ -24,11 +24,11 @@
 )
 
 import (
-	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/metric/global"
-
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/context"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/filter"
+
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/metric/global"
 )
 
 import (
diff --git a/pkg/filter/ratelimit/init.go b/pkg/filter/ratelimit/init.go
index 66c021b..ee9c0d2 100644
--- a/pkg/filter/ratelimit/init.go
+++ b/pkg/filter/ratelimit/init.go
@@ -23,9 +23,9 @@
 	"github.com/alibaba/sentinel-golang/core/flow"
 	"github.com/alibaba/sentinel-golang/logging"
 
-	"github.com/pkg/errors"
-
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
+
+	"github.com/pkg/errors"
 )
 
 import (
diff --git a/pkg/filter/ratelimit/init_test.go b/pkg/filter/ratelimit/init_test.go
index a17772d..315494f 100644
--- a/pkg/filter/ratelimit/init_test.go
+++ b/pkg/filter/ratelimit/init_test.go
@@ -17,7 +17,9 @@
 
 package ratelimit
 
-import "testing"
+import (
+	"testing"
+)
 
 func TestInit(t *testing.T) {
 	c := GetMockedRateLimitConfig()
diff --git a/pkg/filter/ratelimit/logger_warpper.go b/pkg/filter/ratelimit/logger_warpper.go
index b033792..a759c1d 100644
--- a/pkg/filter/ratelimit/logger_warpper.go
+++ b/pkg/filter/ratelimit/logger_warpper.go
@@ -17,7 +17,9 @@
 
 package ratelimit
 
-import "github.com/apache/dubbo-go-pixiu/pkg/logger"
+import (
+	"github.com/apache/dubbo-go-pixiu/pkg/logger"
+)
 
 // loggerWrapper
 type loggerWrapper struct {
diff --git a/pkg/filter/ratelimit/mock.go b/pkg/filter/ratelimit/mock.go
index 518f967..93b448a 100644
--- a/pkg/filter/ratelimit/mock.go
+++ b/pkg/filter/ratelimit/mock.go
@@ -19,6 +19,7 @@
 
 import (
 	"github.com/alibaba/sentinel-golang/core/flow"
+
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
 )
 
diff --git a/pkg/filter/ratelimit/rate_limit.go b/pkg/filter/ratelimit/rate_limit.go
index c1f5196..0bfd56b 100644
--- a/pkg/filter/ratelimit/rate_limit.go
+++ b/pkg/filter/ratelimit/rate_limit.go
@@ -25,6 +25,7 @@
 import (
 	sentinel "github.com/alibaba/sentinel-golang/api"
 	"github.com/alibaba/sentinel-golang/core/base"
+
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/context"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/filter"
diff --git a/pkg/filter/remote/call.go b/pkg/filter/remote/call.go
index 51981d3..1a85556 100644
--- a/pkg/filter/remote/call.go
+++ b/pkg/filter/remote/call.go
@@ -30,6 +30,7 @@
 	_ "github.com/apache/dubbo-go/filter/filter_impl"
 	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
+
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/context"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/filter"
diff --git a/pkg/initialize/init.go b/pkg/initialize/init.go
index 3eb2a84..e322464 100644
--- a/pkg/initialize/init.go
+++ b/pkg/initialize/init.go
@@ -18,6 +18,10 @@
 package initialize
 
 import (
+	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+)
+
+import (
 	"github.com/apache/dubbo-go-pixiu/pkg/filter/accesslog"
 	"github.com/apache/dubbo-go-pixiu/pkg/filter/api"
 	"github.com/apache/dubbo-go-pixiu/pkg/filter/authority"
@@ -30,10 +34,6 @@
 	sa "github.com/apache/dubbo-go-pixiu/pkg/service/api"
 )
 
-import (
-	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
-)
-
 // Run start init.
 func Run(config config.APIConfig) {
 	filterInit(&config)
diff --git a/pkg/logger/logger.go b/pkg/logger/logger.go
index ab8777f..4594367 100644
--- a/pkg/logger/logger.go
+++ b/pkg/logger/logger.go
@@ -26,7 +26,9 @@
 
 import (
 	"github.com/ghodss/yaml"
+
 	perrors "github.com/pkg/errors"
+
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 )
diff --git a/pkg/pixiu/listener.go b/pkg/pixiu/listener.go
index 25f56be..3d29df8 100644
--- a/pkg/pixiu/listener.go
+++ b/pkg/pixiu/listener.go
@@ -27,10 +27,10 @@
 )
 
 import (
-	"github.com/pkg/errors"
-
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
+	"github.com/pkg/errors"
 )
 
 import (
diff --git a/pkg/pixiu/listener_test.go b/pkg/pixiu/listener_test.go
index 34f3ee0..d4a2766 100644
--- a/pkg/pixiu/listener_test.go
+++ b/pkg/pixiu/listener_test.go
@@ -27,6 +27,7 @@
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/pixiu/otel.go b/pkg/pixiu/otel.go
index 9b0bf5b..6735cc0 100644
--- a/pkg/pixiu/otel.go
+++ b/pkg/pixiu/otel.go
@@ -24,13 +24,16 @@
 
 import (
 	"go.opentelemetry.io/otel/exporters/prometheus"
+
 	"go.opentelemetry.io/otel/metric/global"
+
 	export "go.opentelemetry.io/otel/sdk/export/metric"
 	"go.opentelemetry.io/otel/sdk/metric/aggregator/histogram"
 	controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
 	processor "go.opentelemetry.io/otel/sdk/metric/processor/basic"
 	selector "go.opentelemetry.io/otel/sdk/metric/selector/simple"
 	"go.opentelemetry.io/otel/sdk/resource"
+
 	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
 )
 
diff --git a/pkg/pixiu/pixiu_start.go b/pkg/pixiu/pixiu_start.go
index 81e212d..3137819 100644
--- a/pkg/pixiu/pixiu_start.go
+++ b/pkg/pixiu/pixiu_start.go
@@ -27,7 +27,6 @@
 	"github.com/apache/dubbo-go-pixiu/pkg/client/dubbo"
 	"github.com/apache/dubbo-go-pixiu/pkg/common/constant"
 	"github.com/apache/dubbo-go-pixiu/pkg/config"
-	// The filter needs to be initialized
 	_ "github.com/apache/dubbo-go-pixiu/pkg/filter"
 	"github.com/apache/dubbo-go-pixiu/pkg/initialize"
 	"github.com/apache/dubbo-go-pixiu/pkg/logger"
diff --git a/pkg/registry/consul.go b/pkg/registry/consul.go
index 58d8b9c..f64d04c 100644
--- a/pkg/registry/consul.go
+++ b/pkg/registry/consul.go
@@ -26,7 +26,9 @@
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
+
 	consul "github.com/hashicorp/consul/api"
+
 	perrors "github.com/pkg/errors"
 )
 
diff --git a/pkg/registry/consul_test.go b/pkg/registry/consul_test.go
index a366cce..f9c8cab 100644
--- a/pkg/registry/consul_test.go
+++ b/pkg/registry/consul_test.go
@@ -30,6 +30,7 @@
 	"github.com/apache/dubbo-go/common/extension"
 	_ "github.com/apache/dubbo-go/registry/consul"
 	"github.com/apache/dubbo-go/remoting/consul"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/registry/load.go b/pkg/registry/load.go
index 8548f99..6784fb0 100644
--- a/pkg/registry/load.go
+++ b/pkg/registry/load.go
@@ -17,7 +17,9 @@
 
 package registry
 
-import "github.com/apache/dubbo-go/common"
+import (
+	"github.com/apache/dubbo-go/common"
+)
 
 // Loader this interface defined for load services from different kinds registry, such as nacos,consul,zookeeper.
 type Loader interface {
diff --git a/pkg/registry/zookeeper.go b/pkg/registry/zookeeper.go
index d50b5af..2996257 100644
--- a/pkg/registry/zookeeper.go
+++ b/pkg/registry/zookeeper.go
@@ -25,6 +25,7 @@
 
 import (
 	"github.com/apache/dubbo-go/common"
+
 	gxzookeeper "github.com/dubbogo/gost/database/kv/zk"
 )
 
diff --git a/pkg/registry/zookeeper_test.go b/pkg/registry/zookeeper_test.go
index 8086cfe..c202994 100644
--- a/pkg/registry/zookeeper_test.go
+++ b/pkg/registry/zookeeper_test.go
@@ -29,8 +29,11 @@
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
+
 	"github.com/dubbogo/go-zookeeper/zk"
+
 	gxzookeeper "github.com/dubbogo/gost/database/kv/zk"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/pkg/router/api_test.go b/pkg/router/api_test.go
index eb1a935..0718e31 100644
--- a/pkg/router/api_test.go
+++ b/pkg/router/api_test.go
@@ -23,12 +23,10 @@
 )
 
 import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestGetURIParams(t *testing.T) {
diff --git a/pkg/router/route.go b/pkg/router/route.go
index 87959f9..806cda0 100644
--- a/pkg/router/route.go
+++ b/pkg/router/route.go
@@ -26,7 +26,9 @@
 import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
 	"github.com/emirpasic/gods/trees/avltree"
+
 	"github.com/pkg/errors"
 )
 
diff --git a/pkg/router/route_test.go b/pkg/router/route_test.go
index 6941e73..31f0240 100644
--- a/pkg/router/route_test.go
+++ b/pkg/router/route_test.go
@@ -22,13 +22,12 @@
 )
 
 import (
-	"github.com/emirpasic/gods/trees/avltree"
-	"github.com/stretchr/testify/assert"
-)
-
-import (
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
 	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+
+	"github.com/emirpasic/gods/trees/avltree"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func getMockMethod(verb config.HTTPVerb) config.Method {
diff --git a/pkg/service/api/discovery_service.go b/pkg/service/api/discovery_service.go
index dc5710a..39b3594 100644
--- a/pkg/service/api/discovery_service.go
+++ b/pkg/service/api/discovery_service.go
@@ -24,6 +24,12 @@
 )
 
 import (
+	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+	ratelimitConf "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
+	fr "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
+)
+
+import (
 	"github.com/apache/dubbo-go-pixiu/pkg/common/constant"
 	"github.com/apache/dubbo-go-pixiu/pkg/common/extension"
 	pc "github.com/apache/dubbo-go-pixiu/pkg/config"
@@ -32,12 +38,6 @@
 	"github.com/apache/dubbo-go-pixiu/pkg/service"
 )
 
-import (
-	"github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
-	ratelimitConf "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config/ratelimit"
-	fr "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/router"
-)
-
 // Init set api discovery local_memory service.
 func Init() {
 	extension.SetAPIDiscoveryService(constant.LocalMemoryApiDiscoveryService, NewLocalMemoryAPIDiscoveryService())
diff --git a/pkg/service/api/discovery_service_test.go b/pkg/service/api/discovery_service_test.go
index 5017fd6..2f6a21d 100644
--- a/pkg/service/api/discovery_service_test.go
+++ b/pkg/service/api/discovery_service_test.go
@@ -23,6 +23,7 @@
 
 import (
 	fc "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config"
+
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/samples/dubbogo/http/server/app/server.go b/samples/dubbogo/http/server/app/server.go
index 2dadd8b..2777da5 100644
--- a/samples/dubbogo/http/server/app/server.go
+++ b/samples/dubbogo/http/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 import (
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/config"
-	_ "github.com/apache/dubbo-go/protocol/rest"
-	_ "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/rest"
+	_ "github.com/apache/dubbo-go/registry/protocol"
 	_ "github.com/apache/dubbo-go/registry/zookeeper"
 )
 
diff --git a/samples/dubbogo/multi/server/app/server.go b/samples/dubbogo/multi/server/app/server.go
index dd719a3..a599937 100644
--- a/samples/dubbogo/multi/server/app/server.go
+++ b/samples/dubbogo/multi/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/body/server/app/server.go b/samples/dubbogo/simple/body/server/app/server.go
index 87ab762..5dc3c8f 100644
--- a/samples/dubbogo/simple/body/server/app/server.go
+++ b/samples/dubbogo/simple/body/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/mix/server/app/server.go b/samples/dubbogo/simple/mix/server/app/server.go
index 87ab762..5dc3c8f 100644
--- a/samples/dubbogo/simple/mix/server/app/server.go
+++ b/samples/dubbogo/simple/mix/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/proxy/server/app/server.go b/samples/dubbogo/simple/proxy/server/app/server.go
index 87ab762..5dc3c8f 100644
--- a/samples/dubbogo/simple/proxy/server/app/server.go
+++ b/samples/dubbogo/simple/proxy/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/query/server/app/server.go b/samples/dubbogo/simple/query/server/app/server.go
index 87ab762..5dc3c8f 100644
--- a/samples/dubbogo/simple/query/server/app/server.go
+++ b/samples/dubbogo/simple/query/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/server/app/server.go b/samples/dubbogo/simple/server/app/server.go
index dd719a3..a599937 100644
--- a/samples/dubbogo/simple/server/app/server.go
+++ b/samples/dubbogo/simple/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )
 
diff --git a/samples/dubbogo/simple/uri/server/app/server.go b/samples/dubbogo/simple/uri/server/app/server.go
index 87ab762..5dc3c8f 100644
--- a/samples/dubbogo/simple/uri/server/app/server.go
+++ b/samples/dubbogo/simple/uri/server/app/server.go
@@ -26,16 +26,14 @@
 )
 
 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"
 )