本示例说明：
从Login.jsp中输入用户名和密码，提交，在NewFile.jsp中显示信息。
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类要放在一个包中！！！
UserB 类文件
package model;
public class UserB {
private String user;
private String pwd;
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}
Login.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<form name="f1" method="post" action="NewFile.jsp">
user name:<input name="user" type="text"></input><br />
user password:<input name="pwd" type="password"></input></br />
<input type="submit" name="ok" value="OK"></input>
</form>
</body>
</html>
NewFile.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<jsp:useBean id="user" class="model.UserB" scope="request"/>
<jsp:setProperty property="*" name="user" />
用户名：<jsp:getProperty property="user" name="user"/><br/>
密码：<jsp:getProperty property="pwd" name="user"/>
</body>
</html>