前后端数据协议

  1. package com.tj.controller.utils;
  3. import lombok.Data;
  5. @Data
  6. public class R {
  7.     private Boolean flag; //true表示处理成功，false表示请求处理失败
  8.     private Object data;  //返回的数据
  10.     public R() {
  11.     }
  13.     public R(Boolean flag) {
  14.         this.flag = flag;
  15.     }
  17.     public R(Boolean flag, Object data) {
  18.         this.flag = flag;
  19.         this.data = data;
  20.     }
  21. }

如下图

  1. {
  2.   "flag": true,
  3.   "data": {
  4.     "records": [
  5.       {
  6.         "id": 10015,
  7.         "isuse": 0,
  8.         "user_id": "17751445454",
  9.         "password": "aa1acc1f79df777464acf9a42c52cefc07df905698532f59c150e163c013d871",
  10.         "user_name": "测试111"
  11.       },
  12.       {
  13.         "id": 10016,
  14.         "isuse": 0,
  15.         "user_id": "17751518888",
  16.         "password": "099277cf0e579118dc607c47c5cc57cfb058235a22b3cd13442c03677c6f3f2a",
  17.         "user_name": "李四"
  18.       },
  19.       {
  20.         "id": 10017,
  21.         "isuse": 0,
  22.         "user_id": "20220310",
  23.         "password": "4260b788c74885654f1fd8f742335ddd3dfe64beb721c6471988ee25f24b6e5b",
  24.         "user_name": "20220310"
  25.       },
  26.       {
  27.         "id": 10018,
  28.         "isuse": 0,
  29.         "user_id": "刘阳",
  30.         "password": "94edf28c6d6da38fd35d7ad53e485307f89fbeaf120485c8d17a43f323deee71",
  31.         "user_name": "刘阳"
  32.       },
  33.       {
  34.         "id": 10019,
  35.         "isuse": 0,
  36.         "user_id": "yetengchap",
  37.         "password": "8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92",
  38.         "user_name": "allen"
  39.       }
  40.     ],
  41.     "total": 84,
  42.     "size": 5,
  43.     "current": 2,
  44.     "orders": [],
  45.     "optimizeCountSql": true,
  46.     "searchCount": true,
  47.     "countId": null,
  48.     "maxLimit": null,
  49.     "pages": 17
  50.   }
  51. }

异常数据

  1. {
  2.     "timestamp": "2022-05-09T05:04:46.010+00:00",
  3.     "status": 405,
  4.     "error": "Method Not Allowed",
  5.     "path": "/users/"
  6. }

后端处理异常，返回结构改变一下

  1. package com.tj.controller.utils;
  3. import org.springframework.web.bind.annotation.ExceptionHandler;
  4. import org.springframework.web.bind.annotation.RestControllerAdvice;
  6. //作为springMVC的异常处理器
  7. @RestControllerAdvice
  8. public class ProjectExceptionAdvice {
  9.     //拦截所有的异常信息
  10.     @ExceptionHandler
  11.     public R doException(Exception ex) {
  12.         //记录日志
  13.         //通知运维
  14.         //通知开发
  15.         ex.printStackTrace(); //控制台打印异常
  16.         return new R("服务器故障，请稍后再试！");
  17.     }
  19. }