About Vue to eliminate repeated prompts when refreshing the page when the Token expires

created () {
    //= ...
    // Get the required system parameters. Note: the getParameterClass method loads data asynchronously.
    // If you need to print observations, you need to process them through watch // Get the parameter category of the user type this.commonFuncs.getParameterClass(this,"user_type","userTypeList","userTypeMap");

    // Get the parameter category of user status for(var i = 0; i < this.userStatusList.length; i++){
      var item = this.userStatusList[i];
      var mapKey = parseInt(item.itemKey);
      this.userStatusMap.set(mapKey, item);
    }

    // Get the parameter class of gender this.commonFuncs.getParameterClass(this,"gender","","genderMap");

    // Get the parameter class of the department this.commonFuncs.getParameterClass(this,"department","","deptMap");

    // Get the role's parameter category this.commonFuncs.getParameterClass(this,"role","","roleMap");

    // Query user records this.queryUsers();
  },

// token-related response interceptor instance.interceptors.response.use(response => {  
  if (response) {
    switch (response.data.code) {
      case 3: //token is empty case 4: //token expired case 5: //token is incorrect localStorage.clear(); //Delete user information alert('token is invalid, please log in again!');
        // To jump to the login page router.replace({
              path: '/login',
        });
        break;
      case 6: //Access denied// Jump to 403 page router.replace({
          path: '/forbidden',
        });        
        break;
      default:
        break;
    }
  }
  return response;
}, error => {
  return Promise.reject(error.response.data.message) //Return the error message returned by the interface})

 this.instance.getParameterClass(
      this.$baseUrl, {"classKey" : classKey}
    ).then(res => {
      //console.log(res.data);
      if (res.data.code == parent.global.SucessRequstCode){
        // If the query succeeds // Success code...
      }else{
        alert(res.data.message);
      }
    }).catch(error => {
      //alert('Query system parameters failed!');            
      console.log(error);
    });

alert(res.data.message);

 /**
   * Determine whether the return code of the request is intercepted. Return true to indicate that the request is intercepted. * This method is used at the calling site. There is no need to process the error message of the intercepted return code. * @param {request return code} code 
   */
  isInterceptorCode(code){
    switch (code) {
      case 3: //token is empty case 4: //token expired case 5: //token is incorrect case 6: //access is prohibited return true;
      default:
        break;
    }
    return false;
  }

 if (!this.commonFuncs.isInterceptorCode(res.data.code)){
          alert(res.data.message);
        }

//global variable export default {
  // Request success return code SucessRequstCode: 0,

  // token invalid flag TokenInvalidFlag: 0
}

// token-related response interceptor instance.interceptors.response.use(response => {  
  if (response) {
    switch (response.data.code) {
      case 0: //Normal// Reset token invalid flag Set global.TokenInvalidFlag = 0;
        break;            
      case 3: //token is empty case 4: //token expired case 5: //token is incorrect localStorage.clear(); //delete user information if (global.TokenInvalidCounter == 0){
          alert('token expired, please log in again!');
        }
        // Set the token invalid flag to 1
        global.TokenInvalidFlag = 1;
            
        // To jump to the login page router.replace({
              path: '/login',
        });
        break;
      case 6: //Access denied// Jump to 403 page router.replace({
          path: '/forbidden',
        });        
        break;
      default:
        break;
    }
  }
  return response;
}, error => {
  return Promise.reject(error.response.data.message) //Return the error message returned by the interface})