springmvc之RequestMapping注解既可以修饰类也可以修饰方法

时间：2022-07-16 18:27:14

@RequestMapping不仅可以修饰类，也可以修饰方法。

总而言之，用@RequestMapping标识的是请求的URL地址。例如：

package com.gong.springmvc.handlers;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@RequestMapping("/springmvc")
@Controller
public class SpringmvcTest {
    private static final String SUCCESS = "success";
    @RequestMapping("/test")
    public String test() {
        System.out.println("RequestmMapping");
        return SUCCESS;
    }
}

此时在jsp中访问就需要这么访问请求：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
    <a href="springmvc/test">springmvc test</a>
</body>
</html>

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