一，login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%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>
<form action="login">
username:<input type="text" name="username"><br>
password:<input type="password" name="pwd"><br>
<input type="submit">
</form>
</body>
</html>
fail.jsp
<body>
fail........
</body>
session.jsp
<body>
<%
AccountBean accountBean = (AccountBean)session.getAttribute("accountBean");
%>
username:<%=accountBean.getUsername() %>
password:<%=accountBean.getPassword() %>
</body>
二，AccountBean.java
/**
*
*/
package com.ht.servlet;
/**
* @author Administrator
*
*/
public class AccountBean {
private String username="";
private String password="";
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
三，CheckAccount.java
/**
*
*/
package com.ht.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* @author Administrator
*
*/
public class CheckAccount extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException{
System.out.println("cccc");
HttpSession session = request.getSession();
AccountBean accountBean = new AccountBean();
String username = (String) request.getAttribute("username");
String password = (String)request.getAttribute("pwd");
accountBean.setUsername(username);
accountBean.setPassword(password);
if (username !=null && username.trim().equals("jsp")){
if (password != null && password.trim().equals("1")){
System.out.println("session");
session.setAttribute("accountBean", accountBean);
String login_sec = "session.jsp";
response.sendRedirect(login_sec);
return ;
}
}
String login_fail = "fail.jsp";
response.sendRedirect(login_fail);
return ;
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException{
doGet(request, response);
}
}
四，web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>CheckAccount</servlet-name>
<servlet-class>com.ht.servlet.CheckAccount</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CheckAccount</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
</web-app>
工程名爲xyServlet