慢慢的思考与总结,终会让你看到不一样的风景
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:
GEThttp://localhost:8080/demo/123?name=suki_rong
对应的java代码:
"/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:
对应的java代码:
"/demo1") (path =
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
"/demo1") (path =
public void demo1(@RequestBody Map
System.out.println(person.get("name"));
}
输出结果:
suki_rong
2、无注解
例:
对应的java代码:
"/demo2") (path =
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;
public String toString(){
return "name:"+name+";age="+age+";hobby:"+hobby;
}
// getters and setters
}
第三类:请求头参数以及COOKIE:@RequestHeader ,@COOKIEValue
例:
java代码:
"/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
"/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());
}
}
}