login.jsp?
?
<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN">
<html>
<head>
<%@?page?import="java.net.*"?%>
<%@?page?language="java"?contentType="text/html;?charset=utf-8"
????pageEncoding="utf-8"%>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>???????</title>
</head>
<body>
????<%???request.setCharacterEncoding("utf-8");
????????String?username="";
????????String?password="";
????????Cookie[]?cookie=request.getCookies();
????????if(cookie!=null&&cookie.length>0){
????????????for(Cookie?c:cookie){
????????????????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"?method="post">
??????<table>
?????????<tr>
???????????<td>用戶名：</td>
???????????<td><input?type="text"?name="username"?value="<%=username?%>"/></td>
?????????</tr>
??????????<tr>
???????????<td>密碼：</td>
???????????<td><input?type="password"?name="password"?value="<%=password?%>"/></td>
?????????</tr>
?????????<tr>
???????????<td?colspan="2"><input?type="checkbox"?name="ischeckbox"?checked="checked"?value="記住密碼"/>記住密碼</td>
?????????</tr>
??????????<tr>
???????????<td?colspan="2"?align="center"><input?type="submit"?name="submit"?value="登錄"/></td>
?????????</tr>
??????</table>
???</form>
?
<html>
<head>
?
?
?
<!--dologin.jsp--->
?
?
<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN">
<%@?page?import="java.net.*"?%>
<%@?page?language="java"?contentType="text/html;?charset=utf-8"
????pageEncoding="utf-8"%>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>???????</title>
</head>
<body>
?????
????<%?request.setCharacterEncoding("utf-8");
????//判斷復(fù)選框是否被選中
????String[]?checkbox=request.getParameterValues("ischeckbox");
????if(checkbox!=null&&checkbox.length>0){
????????String?username=URLEncoder.encode(request.getParameter("username"),"utf-8");
????????String?password=URLEncoder.encode(request.getParameter("password"),"utf-8");
?????????
????????//獲得Cookie對象并將信息存入cookie對象
????????Cookie?usernameCookie=new?Cookie("username",username);
????????Cookie?passwordCookie=new?Cookie("password",password);
????????//保存cookie對象
????????response.addCookie(usernameCookie);
????????response.addCookie(passwordCookie);
????????usernameCookie.setMaxAge(864000);//生存期限10天
????????passwordCookie.setMaxAge(864000);
?????????
????}
????else{
????????Cookie[]?cookie=request.getCookies();//獲得之前保存過的Cookie對象
????????if(cookie!=null&&cookie.length>0){
????????????for(Cookie?c:cookie){
????????????????if(c.getName().equals("username")||c.getName().equals("password")){
????????????????c.setMaxAge(0);//銷毀對象
????????????????response.addCookie(c);
????????????????}??
????????????}
????????}
?????????
????}
????%>
????<a?href="testlogin.jsp"?>查看用戶信息</a>??
</body>
</html>
?
?
?
testlogin.jsp
?
<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN">
<%@page?import="java.net.URLDecoder"%>
<html>
<head>
<%@?page?language="java"?contentType="text/html;?charset=utf-8"
????pageEncoding="utf-8"%>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>???????</title>
</head>
<body>
????<h1>用戶信息</h1>
????<hr>
????<%
????request.setCharacterEncoding("utf-8");
????String?username="";
????String?password="";
????Cookie[]?cookie=request.getCookies();//獲取Cookie對象
????if(cookie!=null&&cookie.length>0){
????????for(Cookie?c:cookie){
????????????if(c.getName().equals("username")){
????????????????username=URLDecoder.decode(c.getValue(),"utf-8");
?????????????????
????????????}
????????????if(c.getName().equals("password")){
????????????????password=URLDecoder.decode(c.getValue(),"utf-8");
????????????}
????????}
????}
?????
????%>
????用戶名：<%=username?%><br>
????密碼：<%=password?%><br>
?????
</body>
</html>
1 回答
一毛錢
TA貢獻(xiàn)156條經(jīng)驗(yàn) 獲得超57個贊
去掉復(fù)選框，頁面任然記憶賬戶和密碼
這個問題可能是瀏覽器的記憶功能造成的，你去掉復(fù)選框的時候可以清理一下緩存
至于后面的查看詳情不為空，也可能是緩存造成的，你可以在<a?href="testlogin.jsp?t=時間戳"?>查看用戶信息</a> ?
添加回答
舉報
0/150
提交
取消