Spring MVC @GetMapping和@PostMapping注解的使用

拼搏现实的明天。 2022-05-17 12:22 202阅读 0赞

创建HelloWorldController

package com.controller;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PostMapping;
    @Controller
    public class HelloWorldController {
    	//只接受get方式的请求
    	@GetMapping("/testGetMapping")
    	public String testGetMapping(Model model) {
    		model.addAttribute("msg","测试@GetMapping注解");
    		return "success";
    	}
    	//只接受post方式的请求
    	@PostMapping("/testPostMapping")
    	public String testPostMapping(Model model) {
    		model.addAttribute("msg","测试@PostMapping注解");
    		return "success";
    	}
    }

创建index.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
        pageEncoding="utf-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>index</title>
    </head>
    <body>
    	<form action="testGetMapping" method="get">
    		<button>测试@GetMapping注解</button>
    	</form>
    	<br>
    	<form action="testPostMapping" method="post">
    		<button>测试@PostMapping注解</button>
    	</form>
    </body>
    </html>

创建success.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
        pageEncoding="utf-8"%>
    <%@taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>success</title>
    </head>
    <body>
    	${requestScope.msg }
    </body>
    </html>

启动Tomcat访问index.jsp

![70][]

点击【测试@GetMapping注解】

![70 1][]

点击【测试@PostMapping注解】

![70 2][]

[70]: /images/20220517/9377e838d2a44bf497b2af7c1baf76e7.png
[70 1]: /images/20220517/a3f01b0a732a4cc687586c3920a2da71.png
[70 2]: /images/20220517/aea8596a71f14ab8a5c92fa9240c74b8.png