Spring MVC @GetMapping和@PostMapping注解的使用

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发布于 2022-07-23 13:43:31

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发布于 2022-07-23 13:43:31

大家好，又见面了，我是你们的朋友全栈君。

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