初始化etcd根据配置执行

main.go

@@ -120,12 +120,12 @@ func appMain() {
 		log.Fatal("init app mongo failed, error:", err)
 	}
 	// init etcd client
-	if err = db.InitEtcdClient(); err != nil {
-		log.Fatal("init etcd client failed, error:", err)
+	if config.AppConfig.UseETCD {
+		if err = db.InitEtcdClient(); err != nil {
+			log.Fatal("init etcd client failed, error:", err)
+		}
 	}
 
-
-
 	// init db engine
 	err = InitDBEngine()
 	if err != nil {