fix loadbalance test issue
diff --git a/dubbo-admin-backend/src/test/java/org/apache/dubbo/admin/controller/LoadBalanceControllerTest.java b/dubbo-admin-backend/src/test/java/org/apache/dubbo/admin/controller/LoadBalanceControllerTest.java
index 38bf946..fe8878b 100644
--- a/dubbo-admin-backend/src/test/java/org/apache/dubbo/admin/controller/LoadBalanceControllerTest.java
+++ b/dubbo-admin-backend/src/test/java/org/apache/dubbo/admin/controller/LoadBalanceControllerTest.java
@@ -84,14 +84,12 @@
         URI uri;
         ResponseEntity<String> response;
         // unknown id
-        uri = restTemplate.getUriTemplateHandler().expand(url("/api/{env}/rules/balancing/{id}"), env, id);
-        response = restTemplate.exchange(uri, HttpMethod.PUT, new HttpEntity<>(balancingDTO), String.class);
+        response = restTemplate.exchange(url("/api/{env}/rules/balancing/{id}"), HttpMethod.PUT, new HttpEntity<>(balancingDTO, null), String.class, env, id);
         assertFalse("should return a fail response, when id is null", (Boolean) objectMapper.readValue(response.getBody(), Map.class).get("success"));
         // valid id
         BalancingDTO balancing = mock(BalancingDTO.class);
         when(overrideService.findBalance(id)).thenReturn(balancing);
-        uri = restTemplate.getUriTemplateHandler().expand(url("/api/{env}/rules/balancing/{id}"), env, id);
-        assertTrue(restTemplate.exchange(uri, HttpMethod.PUT, new HttpEntity<>(balancingDTO), Boolean.class).getBody());
+        assertTrue(restTemplate.exchange(url("/api/{env}/rules/balancing/{id}"), HttpMethod.PUT, new HttpEntity<>(balancingDTO, null), Boolean.class, env, id).getBody());
         verify(overrideService).saveBalance(any(BalancingDTO.class));
     }
 
@@ -138,9 +136,8 @@
         URI uri;
         ResponseEntity<String> response;
 
-        uri = restTemplate.getUriTemplateHandler().expand(url("/api/{env}/rules/balancing/{id}"), env, id);
-        response = restTemplate.exchange(uri, HttpMethod.DELETE, new HttpEntity<>(null), String.class);
+        response = restTemplate.exchange(url("/api/{env}/rules/balancing/{id}"), HttpMethod.DELETE, new HttpEntity<>(null), String.class, env, id);
         assertEquals(HttpStatus.OK, response.getStatusCode());
         assertTrue(Boolean.valueOf(response.getBody()));
     }
-}
\ No newline at end of file
+}