postmapping接收多个参数

回答: 在使用SpringBoot接收post请求时，可以使用多种方式接收多个参数。一种方式是通过VO对象接收，需要创建一个VO对象，然后在post请求的方法上使用@RequestBody注解接收对象参数。例如：

@PostMapping("path")
public Result doSomething(@RequestBody ObjectVO objectVO){
   String field = objectVO.getxxx();
}

另一种方式是使用@RequestParam注解，可以在方法的参数列表中使用多个@RequestParam注解来接收多个参数。例如：

@ApiOperation("transmit")
@PostMapping("/transmit")
public Result transmit(@RequestParam(required = false) @ApiParam(value = "id") String id, 
                       @ApiParam(value = "用户id") @RequestParam(required = true) Long userId) {
    // 根据userId查询用户
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    String date = format.format(new Date());
    User user = userService.findById(userId);
    if(StringUtils.isEmpty(id)){
        return ResultGenerator.genFailResult("id不能为空");
    }
    return ResultGenerator.genSuccessResult(1);
}

还有一种方式是自定义参数解析器。可以创建一个实现了HandlerMethodArgumentResolver接口的自定义参数解析器，并使用@Component注解标注它。然后在resolveArgument方法中解析参数并返回。通过这种方式可以灵活地处理多个参数的接收。例如：

@Component
public ParamsResolver implements HandlerMethodArgumentResolver{
    @Override
    public boolean supportsParameter(MethodParameter methodParameter){
        return methodParameter.hasParameterAnnotation(Params.class);
    }

    @Override
    public Object resolveArgument(MethodParameter methodParameter, 
                                  ModelAndViewContainer modelAndViewContainer, 
                                  NativeWebRequest nativeWebRequest, 
                                  WebDataBinderFactory webDataBinderFactory){
        // to do
    }
}

以上是三种常用的接收post请求多个参数的方式，根据具体情况选择适合自己的方式。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [SpringBoot自定义post独立参数注解，支持多参数](https://blog.csdn.net/eefrood2008/article/details/126528068)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *2* [@PostMapping接收方式](https://blog.csdn.net/LiZhen314/article/details/125067756)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *3* [Spring：在POST请求中如何接收多个对象参数](https://blog.csdn.net/weixin_43647393/article/details/112218804)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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