diff --git a/pkg/client/dubbo/dubbo.go b/pkg/client/dubbo/dubbo.go
index 8356b93e2..69dc84400 100644
--- a/pkg/client/dubbo/dubbo.go
+++ b/pkg/client/dubbo/dubbo.go
@@ -164,7 +164,7 @@ func (dc *Client) Call(req *client.Request) (resp client.Response, err error) {
 // MappingParams param mapping to api.
 func (dc *Client) MappingParams(req *client.Request) ([]string, []interface{}, error) {
 	r := req.API.Method.IntegrationRequest
-	values := []interface{}{}
+	var values []interface{}
 	for _, mappingParam := range r.MappingParams {
 		source, _, err := client.ParseMapSource(mappingParam.Name)
 		if err != nil {
diff --git a/sample/dubbogo/proxy/api_config.yaml b/sample/dubbogo/proxy/api_config.yaml
index e3cb19aa4..782865d70 100644
--- a/sample/dubbogo/proxy/api_config.yaml
+++ b/sample/dubbogo/proxy/api_config.yaml
@@ -20,10 +20,11 @@ resources:
           requestType: dubbo
           mappingParams:
             - name: queryStrings.name
-              mapTo: 1
+              mapTo: 0
           applicationName: "UserProvider"
           interface: "com.ic.user.UserProvider"
           method: "GetUserByName"
+          paramTypes: [ "java.lang.String" ]
           group: "test"
           version: 1.0.0
           clusterName: "test_dubbo"