<%@page import="java.net.URLDecoder"%> <%@ 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>Coolie创建</title> </head> <body> <h1>用户登录</h1> <hr> <% request.setCharacterEncoding("utf-8"); String userName = ""; String password = ""; Cookie[] cookies=request.getCookies(); if(cookies!=null&&cookies.length>0){ for(Cookie c:cookies){ if(c.getName().equals("userName")){ userName=URLDecoder.decode(c.getValue(), "utf-8"); } if(c.getName().equals("password")){ password=URLDecoder.decode(c.getValue(), "utf-8"); } } } %> <form action="dologin.jsp" name="loginForm" method="post"> <table> <tr> <td>用户名：</td> <td><input type="text" name="userName" value="<%=userName%>"></td> </tr> <tr> <td>密码：</td> <td><input type="password" name="password"value="<%=password%>">></td> </tr> <tr> <td colspan="2"><input type="checkbox" name="isUseCookie" checked="checked">10天内记住用户名</td> </tr> <tr> <td colspan="2"><input type="submit" value="">登录</td> </tr> </table> </form> </body> </html>
<%@page import="java.net.URLEncoder"%> <%@ 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>登陆成功或失败</title> </head> <body> <h1>登陆成功</h1> <br> <br> <br> <br> <br> <% /* 首先判断用户是否选择了记住用户名 */ String[] isCookie=request.getParameterValues("isUseCookie"); if(isCookie!=null&&isCookie.length>0){ request.setCharacterEncoding("utf-8"); //把用户名和密码保存再cookie对象里 String userName=URLEncoder.encode(request.getParameter("userName"),"utf-8"); //使用URL解决无法在cookie中无法保存中文 String password=URLEncoder.encode(request.getParameter("password"),"utf-8"); Cookie cookieName=new Cookie("userName",userName); Cookie cookiePassword=new Cookie("password",password); cookieName.setMaxAge(864000); cookiePassword.setMaxAge(864000);//设置最大生存期限为10天 response.addCookie(cookieName); response.addCookie(cookiePassword); }else{ //把已经保存的Cookie内容失效 Cookie[] cookies=request.getCookies(); if(cookies!=null&&cookies.length>0){ for(Cookie c:cookies){ if(c.getName().equals("userName")||(c.getName().equals("password"))){ c.setMaxAge(0);//设置cookie失效 response.addCookie(c); } } } } %> <a href="user.jsp" target="_blank">查看用户信息</a> </body> </html>
<%@page import="java.net.URLDecoder"%> <%@ 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>用户信息</title> </head> <body> <h1>用户信息</h1> <hr> <br> <% request.setCharacterEncoding("utf-8"); String userName = ""; String password = ""; Cookie[] cookies = request.getCookies(); if (cookies != null && cookies.length > 0) { for (Cookie c : cookies) { if (c.getName().equals("userName")) { userName = URLDecoder.decode(c.getValue(), "utf-8"); } if (c.getName().equals("password")) { password = URLDecoder.decode(c.getValue(), "utf-8"); } } } %> <br> <br> <br> 用户名：<%=userName%> <br> 密码：<%=password%> <br> </body> </html>
