diff --git a/cluster/router/condition/factory.go b/cluster/router/condition/factory.go
index 68534aee44f58821991509fd755417a1f755dc62..66512a138706e9b9ab565f7537a15c37a75deefd 100644
--- a/cluster/router/condition/factory.go
+++ b/cluster/router/condition/factory.go
@@ -56,4 +56,4 @@ func newAppRouterFactory() router.RouterFactory {
 // NewRouter Create AppRouterFactory by URL
 func (c *AppRouterFactory) NewRouter(url *common.URL) (router.Router, error) {
 	return NewAppRouter(url)
-}
\ No newline at end of file
+}
diff --git a/cluster/router/condition/factory_test.go b/cluster/router/condition/factory_test.go
index 54afcd42411b6599c8874b4f93cb171fb5adf53e..99cec34096a55d3c2a967b63afdf5f6d0a77279a 100644
--- a/cluster/router/condition/factory_test.go
+++ b/cluster/router/condition/factory_test.go
@@ -365,4 +365,4 @@ func TestNewConditionRouterFactory(t *testing.T) {
 func TestNewAppRouterFactory(t *testing.T) {
 	factory := newAppRouterFactory()
 	assert.NotNil(t, factory)
-}
\ No newline at end of file
+}
diff --git a/cluster/router/healthcheck/default_health_check.go b/cluster/router/healthcheck/default_health_check.go
index e580dc1040833b2b5979312c165d7b15376bba15..5be102760325e02ed72e771e2cc0cbb7be8e3819 100644
--- a/cluster/router/healthcheck/default_health_check.go
+++ b/cluster/router/healthcheck/default_health_check.go
@@ -111,5 +111,3 @@ func NewDefaultHealthChecker(url *common.URL) router.HealthChecker {
 		circuitTrippedTimeoutFactor:       int32(url.GetParamInt(CIRCUIT_TRIPPED_TIMEOUT_FACTOR_KEY, DEFAULT_CIRCUIT_TRIPPED_TIMEOUT_FACTOR)),
 	}
 }
-
-
diff --git a/common/constant/key.go b/common/constant/key.go
index 648dc48d8f73f3e8aecc7b3ac1abded93545641b..5690e53ed9fbd2bb7ffef4e0c36cdff76843e42b 100644
--- a/common/constant/key.go
+++ b/common/constant/key.go
@@ -158,7 +158,7 @@ const (
 	// ConditionAppRouterName Specify listenable application router name
 	ConditionAppRouterName = "app"
 	// ListenableRouterName Specify listenable router name
-	ListenableRouterName  = "listenable"
+	ListenableRouterName = "listenable"
 	// HealthCheckRouterName Specify the name of HealthCheckRouter
 	HealthCheckRouterName = "health_check"