第一类:请求路径参数
1、@PathVariable
获取路径参数。即url/{id}这种形式。
2、@RequestParam
获取查询参数。即url?name=这种形式
例子
GET
http://localhost:8080/demo/123?name=suki_rong
对应的java代码
@GetMapping("/demo/{id}")
public void demo(@PathVariable(name = "id") String id, @RequestParam(name = "name") String name) {System.out.println("id="+id);System.out.println("name="+name);
}
输出结果:
id=123
name=suki_rong
第二类:Body参数
因为是POST请求,这里用Postman的截图结合代码说明
1、@RequestBody
例子
对应的java代码:
@PostMapping(path = "/demo1")
public void demo1(@RequestBody Person person) {System.out.println(person.toString());
}
输出结果:
name:suki_rong;age=18;hobby:programing
也可以是这样
@PostMapping(path = "/demo1")
public void demo1(@RequestBody Map<String, String> person) {System.out.println(person.get("name"));
}
输出结果:
suki_rong
2、无注解
例子
对应的java代码:
@PostMapping(path = "/demo2")
public void demo2(Person person) {System.out.println(person.toString());
}
输出结果:
name:suki_rong;age=18;hobby:programing
Person类
public class Person {private long id;private String name;private int age;private String hobby;@Overridepublic String toString(){return "name:"+name+";age="+age+";hobby:"+hobby;}// getters and setters
}
第三类:请求头参数以及Cookie
1、@RequestHeader
2、@CookieValue
例子
java代码:
@GetMapping("/demo3")
public void demo3(@RequestHeader(name = "myHeader") String myHeader,@CookieValue(name = "myCookie") String myCookie) {System.out.println("myHeader=" + myHeader);System.out.println("myCookie=" + myCookie);
}
也可以这样
@GetMapping("/demo3")
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());}}
}
参考地址:https://blog.csdn.net/suki_rong/article/details/80445880