diff --git a/examples/general/dubbo/go-server/app/user_provider.go b/examples/general/dubbo/go-server/app/user_provider.go
index aeb5ad549f7008b62df647664625e930668b7807..87f0d85f96c9664399ab0dd22eaf4af5c742da33 100644
--- a/examples/general/dubbo/go-server/app/user_provider.go
+++ b/examples/general/dubbo/go-server/app/user_provider.go
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 package main
 
 import (
diff --git a/examples/general/dubbo/go-server/app/user_provider1.go b/examples/general/dubbo/go-server/app/user_provider1.go
index f1a3abfa6b23f1fa1b5430f9e705e2a943a1f6f4..afc2a1d238752657e1b070979a6555b51dfb8d19 100644
--- a/examples/general/dubbo/go-server/app/user_provider1.go
+++ b/examples/general/dubbo/go-server/app/user_provider1.go
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 package main
 
 import (
diff --git a/examples/general/dubbo/go-server/app/user_provider2.go b/examples/general/dubbo/go-server/app/user_provider2.go
index b4a6937543a9470bcc9734a6010765f571d5c235..cc19e0b5a176c186d3c593867eb90b221c01f943 100644
--- a/examples/general/dubbo/go-server/app/user_provider2.go
+++ b/examples/general/dubbo/go-server/app/user_provider2.go
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 package main
 
 import (