SpringMVC接收前端传递的参数四种方式小结

get/post  url =>"xx/user?id=1"    action =>
public String User( @RequestParams(name="id") Long id ){
}

@RequestParams(name="id") Long id )（通过postman模拟post请求）

get/post  url =>"xx/user/1"    action =>public String User( @PathVariable(name="id") Long id){}

  @RequestMapping("/user/{id:\\d}")
  public String User( @PathVariable(name="id") Long id){}

@GetMapping("/category")
   public String category( Long id) {
    System.out.println(id);
    return "post/category";
}

    @GetMapping("/category")
    public String category( MPost post ) {
        System.out.println(post.getTitle());
        return "post/category";
    }

url  => /category  requestbody =>{"id":1}
    @PostMapping("/category")
    public String category( @RequestBody Post post ) {
        System.out.println(post.getTitle());
        return "post/category";
    }