springboot 传值和校验

传值

POST

JSON

@PostMapping
public JsonResult<?> post(@Validated @RequestBody ActivityCreateDTO activityCreateDTO) {}

@ResponseBody
@RequestMapping(value = "/addItemCategories", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
public JsonData addItemCategories(HttpServletRequest request,@RequestBody Map<String, Object> json) throws InterruptedException {}

x-www-form-urlencoded

@PostMapping("/test")
public void test(Test test) {
    System.out.println("msg:"+test.getMsg());
}

@PostMapping("/test")
public void test(Integer status,String msg,Integer data) {
    System.out.println("msg:"+msg);
}

PUT

@PutMapping("/{actId}/abolish")
public JsonResult<?> abolishActivity(@PathVariable("actId") Integer actId) {}

DELETE

@DeleteMapping("/{actId}")
public JsonResult<?> deleteActivity(@PathVariable("actId") Integer actId) {}

GET

当然，你也可以这么实现， @RequestParam(value=”username”, required=true) ， required 默认为 true，如果前台不传递此参数，后台会报错。如果设置为 false，如果不传，默认为 null。

@GetMapping
public JsonResult<?> getActivityList(Integer status,
String keyword,
@Range(min = 1, message = "页码最小为1") @RequestParam(defaultValue = "1") int page,
@Range(min = 1, max = 100, message = "单页数量最大为1-100") @RequestParam(defaultValue = "10") int count) {

}

@GetMapping("/{actId}/awards_users")
public JsonResult<?> awardsUsers(@PathVariable("actId") Integer actId) {
return JsonResult.ok(toCActivityService.getAwardsUsersList(actId, 50));
}

@GetMapping("/{actId}/intro")
public JsonResult<?> intro(@PathVariable("actId") Integer actId) {
return JsonResult.ok(toCActivityService.getActivityIntro(actId));
}

@GetMapping("/{actId}")
public JsonResult<?> activityDetail(@PathVariable("actId") Integer actId) {}

多参数无实体 map

json

@ResponseBody
@RequestMapping(value = "/getItems", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
public Object getItems(HttpServletRequest request, @RequestBody Map<String, Object> json) {}

对象

数组

集合实体对象

• @RequestBody注解，必须与contentType 类型application/json配合使用。
• @RequestParam注解，必须与contentTyp类型application/x-www-form-urlencoded配合使用，其为默认类型。

• JSON.stringify()把对象类型转换为字符串类型，配合@RequestBody注解和contentType 类型application/json使用。

  @ResponseBody
  @RequestMapping(value = "/uploadItems", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
  public JsonData uploadItems(HttpServletRequest request,
  @RequestBody String dataList) throws InterruptedException {
  String accessToken = request.getAttribute("access_token").toString();
  Long shopId = Long.valueOf(request.getAttribute("shop_id").toString());
  
  JSONObject j1 = JSONObject.parseObject(dataList);
  List<OnlineUpdateItemLogs> onlineUpdateItemLogsList = JSONObject.parseArray(j1.getJSONArray("dataList").toJSONString(), OnlineUpdateItemLogs.class);
  
  onlineDto.uploadCategories(accessToken, shopId, 1,onlineUpdateItemLogsList);
  
  return JsonData.buildSuccess();
  }
  

传递集合实体对象一对多

文件上传

@ResponseBody
@RequestMapping(value="/importItems", method = RequestMethod.POST)
public JsonData importItems(@RequestParam Map<String,String> map,@RequestParam("file") MultipartFile file, HttpServletRequest request) throws Exception {}

校验

注解列表
https://blog.csdn.net/u012882327/article/details/86609974

使用
https://blog.csdn.net/justry_deng/article/details/86571671?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.channel_param&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.channel_param