springMVC 中引數繫結
阿新 • • 發佈：2021-09-10
引數繫結
1編寫UserController 類
package com.xiang.lesson01.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; @Controller @RequestMapping(value = "/user") public class UserController { @RequestMapping("/login") public String register() { return "user/login"; } @RequestMapping(value = "/dologin/{userId}", method = RequestMethod.POST) public String login(@PathVariable("userId") int userId) { // PathVariable 前臺 傳入後臺 System.out.println("userid====>" + userId); return "/user/success"; } @RequestMapping(value = "/logintwo", method = RequestMethod.POST) public String login2(@RequestParam("user") String user, @RequestParam("pwd") String pwd) { if (user.equals("xiang") && pwd.equals("123")) { return "/user/success"; } else { return "/user/fail"; } } }
2編寫login.jsp 檔案
<%-- Created by IntelliJ IDEA. User: Xiang Date: 2021/9/9 Time: 11:31 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>Title</title> </head> <body> <div align="center"> <form action="<%=request.getContextPath()%>/user/logintwo" method="post"> <table border="1"> <tr> <td>user</td> <td> <input type="text" name="user"> </td> </tr> <tr> <td>pwd</td> <input type="password" name="pwd"> </tr> <tr> <td></td> <td> <input type="submit"> </td> </tr> </table> </form> </div> </body> </html>
3編寫success.jsp 檔案
<%-- Created by IntelliJ IDEA. User: Xiang Date: 2021/9/9 Time: 15:39 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <h3> success </h3> </body> </html>
4編寫login.jsp 檔案
<%--
Created by IntelliJ IDEA.
User: Xiang
Date: 2021/9/9
Time: 16:39
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<div align="center">
<form action="<%=request.getContextPath()%>/user/logintwo" method="post">
<table border="1">
<tr>
<td>user</td>
<td>
<input type="text" name="user">
</td>
</tr>
<tr>
<td>pwd</td>
<input type="password" name="pwd">
</tr>
<tr>
<td></td>
<td>
<input type="submit">
</td>
</tr>
</table>
</form>
</div>
</body>
</html>
5執行截圖