GET OR POST

jsp前端与后端get，post方法api对接，转自https://blog.csdn.net/dwenxue/article/details/81586709
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

点击【测试@GetMapping注解】

点击【测试@PostMapping注解】

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