SpringBoot Controller接收参数的几种常用方式

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原创最新推荐文章于 2026-05-10 09:24:06 发布 358 阅读 AI 写同款· GEO 优化 ›

SpringBoot在Controller类中自动注入HttpServletRequest是否线程安全解析 1、首先大家先看一段代码 @RestController @RequestMapping("/myTest") public class MyTestController { @Autowired private HttpServletRequest request; @GetMapping("/add" ) @ResponseBody public S... 阅读详情

请求路径参数

@PathVariable

获取路径参数。即url/{id}这种形式。

@RequestParam

获取查询参数。即url?name=这种形式

例子:

@GetMapping("/demo/{id}")
public String demo(@PathVariable(name = "id") String id, @RequestParam(name = "name") String name) {
    return "PathVariable="+id+"  RequestParam="+name;
}

测试:

Body参数

@RequestBody

@PostMapping("/user1")
public String demo1(@RequestBody User user) {
    return user.toString();
}

或者

 @PostMapping(path = "/user2")
    public Object demo1(@RequestBody Map<String, String> user) {
       return user;
    }

无注解

代码

 @PostMapping("/user3")
    public String demo3(User user) {
        return user.toString();
    }

请求头参数以及Cookie

1、@RequestHeader
2、@CookieValue

@GetMapping("/demo1")
    public String demo3(@RequestHeader(name = "myHeader") String myHeader/*,
                      @CookieValue(name = "myCookie") String myCookie*/) {

        return "myHeader=" + myHeader;
    }

或者

@GetMapping("/demo2")
public void demo3(HttpServletRequest request) {
  System.out.println(request.getHeader("myHeader"));
  for (Cookie cookie : request.getCookies()) {
    if ("myCookie".equals(cookie.getName())) {
      System.out.println(cookie.getValue());
    }
  }
}

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