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);}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; @Override public String toString(){ return "name:"+name+";age="+age+";hobby:"+hobby; } // getters and setters}第三类:请求头参数以及Cookie1. @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()); } }}
|