api 节流提示

src/plugins/axios.js

@@ -292,6 +292,11 @@ _$http.interceptors.response.use(
         confirmButtonText: "确定"
       });
       return Promise.reject(error);
+    } else if (status == 503) {
+      Vue.prototype.$alert("服务器繁忙，请稍后重试！", "提示", {
+        confirmButtonText: "确定"
+      });
+      return Promise.reject(error);
     }
 
     if (status != 200) {