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:
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
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
name:suki_rong;age=18;hobby:programing
Person类
public class Person {
private long id;
private String name;
private int age;
private String hobby;
private String name;
private int age;
private String hobby;
@Override
public String toString(){
return "name:"+name+";age="+age+";hobby:"+hobby;
}
public String toString(){
return "name:"+name+";age="+age+";hobby:"+hobby;
}
// getters and setters
}
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}
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