diff --git a/common.go b/common.go
index 0d0bb02..36b013f 100644
--- a/common.go
+++ b/common.go
@@ -152,11 +152,16 @@ const CHANNEL_ORDER_ASKPAY_QUEUE = "channel_order_askpay_queue"
 
 func rpc_server_conn(url ...string) (*RabbitmqServiceClient, error) {
 
-	var wx_rpc_url string = "127.0.0.1:7955"
+	var rpc_url string
 	if len(url) > 0 && url[0] != "" {
-		wx_rpc_url = url[0]
+		rpc_url = url[0]
+	} else if conf.RABBITMQ_RPC_URL != "" {
+		rpc_url = conf.RABBITMQ_RPC_URL
+	} else {
+		rpc_url = "127.0.0.1:" + conf.RABBITMQ_RPC_PORT
 	}
-	conn, _, err := DialRabbitmqService("tcp", wx_rpc_url)
+
+	conn, _, err := DialRabbitmqService("tcp", rpc_url)
 	if err != nil {
 		return nil, err
 	}