SpringMVC-RequestEntity类型

一、介绍
RequestEntity类型用于获取整个请求报文，包括请求头、请求体等信息。

二、项目测试
（1）编写Controller类

@Controller
public class MyController {

    @RequestMapping(value = {"/hello"})
    public String hello(RequestEntity<String> requestEntity){
        HttpHeaders headers = requestEntity.getHeaders();
        String body = requestEntity.getBody();
        URI url = requestEntity.getUrl();
        HttpMethod method = requestEntity.getMethod();
        System.out.println("请求头：" + headers.toString());
        System.out.println("请求体：" + body);
        System.out.println("URL：" + url.toString());
        System.out.println("请求方法：" + method.toString());
        return "hello";
    }
}

（2）运行