package com.po;
public class Users {
public Users(){
}
private String username;
private int password;
public String getUserName() {
return username;
}
public void setUserName(String username) {
this.username = username;
}
public int getPassword() {
return password;
}
public void setPassword(int password) {
this.password = password;
}
}
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'login.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h1>系统登录</h1>
<hr>
<form name="loginForm" action="dologin.jsp" method="post">
<table>
<tr>
<td>用户登录:</td>
<td><input type="text" name="username" value=""/></td>
</tr>
<tr>
<td>密码:</td>
<td><input type="password" name="password" value=""/></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="登录"/></td>
</tr>
</table>
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'dologin.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h1>登陆成功</h1>
<h2>setProperty动作元素</h2>
<hr>
<jsp:useBean id="myUser" class="com.po.Users" scope="page"/>
<jsp:setProperty name="myUser" property="*" />
用户名：<%=myUser.getUserName() %>
密码:<%=myUser.getPassword() %>
</body>
</html>
private String username;
public String getUserName() {
return username;
}
你的username的getset的方法写错了，getUserName()应该是setUsername
可以去查查自动生成的方法，就不用自己写，不会错了