我们在使用ResponseEntity时，更多的是为了设置不同的HttpResponse Code，如果你的系统偏好是通过Response Body中的Code来判断API状态即几乎所有API的HttpResponse Code=200，那么完全可以不使用ResponseEntity作为返回数据类型，只需要去返回Response Body，通过Body中开发者自定义的Code给API设置状态
例如 Response Body
{
code: 200,
ErrorMessage: "error message",
data: {}
}
Get请求时
return ResponseEntity.ok();
@GetMapping({"findAll"})
public ResponseEntity<PageResult<User>> findAll(@RequestParam(name = "admin", required = false) String admin, @RequestParam(name = "page", defaultValue = "1") Integer page, @RequestParam(name = "rows", defaultValue = "10") Integer rows) {
PageResult<User> userPageResult = this.userService.findAll(admin, page, rows);
return ResponseEntity.ok(userPageResult);
}
Post请求新增一条记录时,有返回值
return ResponseEntity.status(HttpStatus.CREATE).body();()存放返回的内容
@PostMapping("save")
public ResponseEntity save(@RequestBody User user) throws Exception {
return ResponseEntity.status(HttpStatus.CREATED).body(this.userService.save(user));
}
Post请求新增一条记录时,无返回值
return new ResponseEntity(HttpStatus.CREATED);
Delete删除请求,无返回
return new ResponseEntity(HttpStatus.NO_CONTENT);
@DeleteMapping({"delete"})
public ResponseEntity delete(@RequestParam(name = "ids") Integer[] ids) {
return ResponseEntity.ok(this.userService.delete(ids));
}
Put更新请求，无返回值
ResponseEntity.noContent().build();
@PutMapping({"update"})
public ResponseEntity update(@RequestBody User user) throws Exception {
return ResponseEntity.ok(this.userService.update(user));
}
