JSP+Cookie 自动登录 checkbox

新手  求大神庇佑！
----------Servlet------------------------
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession();
String name = request.getParameter("nickname");
String password = request.getParameter("password");
                 //checkbox的name  autologin
String auto = request.getParameter("autologin"); ICustomerService service = new CustomerServiceImpl(); Customer c = service.login(name, password);
PrintWriter out = response.getWriter();
if (c != null) {
// 上面是判断密码正确与否
session.setAttribute("customer", c);
if (auto != null) {
Cookie user = new Cookie("user", name);
Cookie pass = new Cookie("pass", password);
user.setMaxAge(400);
pass.setMaxAge(400);
response.addCookie(user);
response.addCookie(pass);
} response.sendRedirect("../jsp/goodslist.jsp"); } else {
out.println("../jsp/register.jsp"); }
out.flush();
out.close(); }
-------------------------------Login.jsp---------------------------
<%
Cookie[] cookies = request.getCookies();
String nickname = null;
String password = null;
if (cookies != null) {
System.out.println("you cookie!=" + cookies.length);
for (Cookie cookie : cookies) {
String name = cookie.getName();
System.out.println(name);
if ("user".equals(name)) {
nickname = cookie.getValue();
}
if ("pass".equals(name)) {
password = cookie.getValue();
} }
if (nickname != null && password != null) { response.sendRedirect("servlet/LoginServlet?nickname="
+ nickname + "&password=" + password); }
}
%>
CookieJSPCheckBox

解决方案 »

  1.   

    servlet  完整代码
    import java.io.IOException;
    import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;import com.briup.bean.Customer;
    import com.briup.service.CustomerServiceImpl;
    import com.briup.service.ICustomerService;public class LoginServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    HttpSession session = request.getSession();
    String name = request.getParameter("nickname");
    String password = request.getParameter("password");
    String auto = request.getParameter("autologin"); ICustomerService service = new CustomerServiceImpl(); Customer c = service.login(name, password); response.setContentType("text/html;charset=gbk");
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    if (c != null) {
    // 利用Filter未登陆的人到登陆界面
    session.setAttribute("customer", c);
    if (auto != null) {
    Cookie user = new Cookie("user", name);
    Cookie pass = new Cookie("pass", password);
    user.setMaxAge(400);
    pass.setMaxAge(400);
    response.addCookie(user);
    response.addCookie(pass);
    } response.sendRedirect("../jsp/goodslist.jsp"); } else {
    out.println("../jsp/register.jsp"); }
    // Cookie cookie= new Cookie("name", name);
    // response.addCookie(cookie);
    // out.print("chuan");
    out.flush();
    out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    doGet(request, response);
    }}
      

  2.   

    login.jsp
    <%@ page language="java" import="java.util.*" pageEncoding="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">
    -->
    <%
    Cookie[] cookies = request.getCookies();
    String nickname = null;
    String password = null;
    if (cookies != null) {
    System.out.println("you cookie!=" + cookies.length);
    for (Cookie cookie : cookies) {
    String name = cookie.getName();
    System.out.println(name);
    if ("user".equals(name)) {
    nickname = cookie.getValue();
    }
    if ("pass".equals(name)) {
    password = cookie.getValue();
    } }
    if (nickname != null && password != null) {
    response.sendRedirect("servlet/LoginServlet?nickname="
    + nickname + "&password=" + password); }
    }
    %>
    </head> <body> <form method="post" action="servlet/LoginServlet">
    <table width="300" border="1">
    <tr>
    <td colspan="2" align="center">
    欢迎登陆
    </td>
    </tr>
    <tr>
    <td width="100">
    用户名
    </td>
    <td width="168">
    <label>
    <input type="text" name="nickname" />
    </label>
    </td>
    </tr>
    <tr>
    <td>
    密码
    </td>
    <td>
    <label>
    <input type="password" name="password" />
    </label>
    </td>
    </tr>
    <tr>
    <td>
    <label>
    <input type="submit" name="button" id="button" value="提交" />
    </label>
    </td>
    <td>
    <label>
    <input type="reset" name="button2" id="button2" value="重置" />
    </label>
    </td>
    </tr>
    <tr>
    <td>
    <label>
    <input type="checkbox" name="autologin" />
    自动登录
    </label>
    </td>
    <td> 注册页面
    </td>
    </tr>
    </table>
    </form>
    </body>
    </html>
      

  3.   

    请参考我的开源项目,基于spring,security,struts开发
    http://blog.csdn.net/shadowsick
      

  4.   

    我自己解决了 郁闷user.path("/")