JavaBean简单示例

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

 1 package model;
 2 
 3 public class UserB {
 4 
 5     private String user;
 6     private String pwd;
 7 
 8     public String getUser() {
 9         return user;
10     }
11 
12     public void setUser(String user) {
13         this.user = user;
14     }
15 
16     public String getPwd() {
17         return pwd;
18     }
19 
20     public void setPwd(String pwd) {
21         this.pwd = pwd;
22     }
23 }

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10     <form name="f1" method="post" action="NewFile.jsp">
11         user name:<input name="user" type="text"></input><br />
12         user password:<input name="pwd" type="password"></input></br />
13         <input type="submit" name="ok" value="OK"></input>
14     </form>
15 </body>
16 </html>

NewFile.jsp

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <html>
 4 <head>
 5 <title>Insert title here</title>
 6 </head>
 7 <body>
 8 <jsp:useBean id="user" class="model.UserB" scope="request"/>
 9 <jsp:setProperty property="*" name="user" />
10 用户名：<jsp:getProperty property="user" name="user"/><br/>
11 密码：<jsp:getProperty property="pwd" name="user"/>
12 </body>
13 </html>