增加演示模式

ruoyi-ui/src/utils/request.js

@@ -73,6 +73,18 @@ service.interceptors.response.use(res => {
         type: 'error'
       })
       return Promise.reject(new Error(msg))
+    } else if (code === 901) {
+      Message({
+        type: 'error',
+        duration: 0,
+        dangerouslyUseHTMLString: true,
+        message: '<div>演示模式，不发进行写操作</div>'
+          + '<div> &nbsp; </div>'
+          + '<div>参考 https://www.iocoder.cn/Yudao/build-debugger-environment 教程</div>'
+          + '<div> &nbsp; </div>'
+          + '<div>5 分钟搭建本地环境</div>',
+      })
+      return Promise.reject(new Error(msg))
     } else if (code !== 200) {
       Notification.error({
         title: msg