以下几种方式只有在已搭好的SpringMVC环境中，才能执行成功！
首先，写一个登陆页面和一个Bean类
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>yyx博客后台登录</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/login.do"
method="post">
<table>
<tr>
<td>用户名:</td>
<td><input type="text"
name="userName"></td>
</tr>
<tr>
<td>密码:</td>
<td><input type="password" name="userPwd"></td>
</tr>
<tr>
<td colspan="2"><input
type="submit" value="登陆"></td>
</tr>
</table>
</form>
</body>
</html>
package com.yyx.model;public class User {
private String userName;
private String userPwd;</span><span style="color: #0000ff">public</span><span style="color: #000000"> String getUserName() {</br> </span><span style="color: #0000ff">return</span><span style="color: #000000"> userName;</br> }</br></br> </span><span style="color: #0000ff">public</span> <span style="color: #0000ff">void</span><span style="color: #000000"> setUserName(String userName) {</br> </span><span style="color: #0000ff">this</span>.userName =<span style="color: #000000"> userName;</br> }</br></br> </span><span style="color: #0000ff">public</span><span style="color: #000000"> String getUserPwd() {</br> </span><span style="color: #0000ff">return</span><span style="color: #000000"> userPwd;</br> }</br></br> </span><span style="color: #0000ff">public</span> <span style="color: #0000ff">void</span><span style="color: #000000"> setUserPwd(String userPwd) {</br> </span><span style="color: #0000ff">this</span>.userPwd =<span style="color: #000000"> userPwd;</br> }</br>}
1、直接把表单的参数写在Controller相应的方法的形参中
package com.yyx.controller;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;@Controller
@RequestMapping("/user")
public class UserController {
@RequestMapping("/login")
public String loginByUser(String userName, String userPwd) {
System.out.println("userName is:" + userName);
System.out.println("userPwd is:" + userPwd);
return "success";
}
}
控制器中方法的形参String userName，String userPwd名称必须和登陆页面的name="userName"，name="userPwd"相同
2.通过HttpServletRequest接收
package com.yyx.controller;import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;@Controller
@RequestMapping("/user")
public class UserController {
@RequestMapping("/login")
public String loginByUser(HttpServletRequest request) {
String userName=request.getParameter("userName");
String userPwd=request.getParameter("userPwd");
System.out.println("userName is:" + userName);
System.out.println("userPwd is:" + userPwd);
return "success";
}
}