實現記住密碼完整代碼代码,Asp.Net代码库,德仔网

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【Asp.Net】實現記住密碼完整代碼
作者:dezai / 发布于2014/6/4/ 521

	<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test0417.aspx.cs" Inherits="test0417" %>

	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

	<html xmlns="http://www.w3.org/1999/xhtml" >
	<head runat="server">
	 <title>无标题页</title>
	 <script language="javascript" type="text/javascript">
	 function onLoginLoaded()
	 {
	 if(isPostBack == "False")
	 {
	 GetLastUser();
	 }
	 }
	 function GetLastUser()
	 {
	 var id = "49BAC005-7D5B-4231-8CEA-16939BEACD67";
	 var usr = GetCookie(id);
	 if(usr != null)
	 {
	 document.getElementById('txtUserName').value = usr;
	 }
	 else
	 {
	 document.getElementById('txtUserName').value = "001";
	 }
	
	 GetPwdAndChk();
	 }
	
	 //點擊登錄時觸發客戶端事件
	 function SetPwdAndChk()
	 {
	 //取用戶名
	 var usr = document.getElementById('txtUserName').value;
	 //alert(usr);
	 //將最後一個用戶信息寫入到Cookie
	 SetLastUser(usr);
	 //如果記住密碼選項被選中
	 if(document.getElementById('chkRememberPwd').checked == true)
	 {
	 //取密碼值
	 var pwd = document.getElementById('txtPassword').value;
	 //alert(pwd);
	 var expdate = new Date();
	 expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000));
	 //將用戶名和密碼寫入到Cookie
	 SetCookie(usr,pwd, expdate);
	 }
	 else
	 {
	 //如果沒有選中記住密碼,則立即過期
	 ResetCookie();
	 }
	 }
	
	
	 function SetLastUser(usr)
	 {
	 var id = "49BAC005-7D5B-4231-8CEA-16939BEACD67";
	 var expdate = new Date();
	 //當前時間加上兩周的時間
	 expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000));
	 SetCookie(id, usr, expdate);
	 }
	
	 //用戶名失去焦點時調用該方法
	 function GetPwdAndChk()
	 {
	 var usr = document.getElementById('txtUserName').value;
	 var pwd = GetCookie(usr);
	
	
	 if(pwd != null)
	 {
	 document.getElementById('chkRememberPwd').checked = true;
	 document.getElementById('txtPassword').value = pwd;
	 }
	 else
	 {
	 document.getElementById('chkRememberPwd').checked = false;
	 document.getElementById('txtPassword').value = "";
	 }
	 }
	
	 //取Cookie的值
	 function GetCookie (name)
	 {
	 var arg = name + "=";
	 var alen = arg.length;
	 var clen = document.cookie.length;
	 var i = 0;
	 while (i < clen)
	 {
	 var j = i + alen;
	 //alert(j);
	 if (document.cookie.substring(i, j) == arg)
	 return getCookieVal (j);
	 i = document.cookie.indexOf(" ", i) + 1;
	 if (i == 0) break;
	 }
	 return null;
	 }
	
	 var isPostBack = "<%= IsPostBack %>";
	 function getCookieVal (offset)
	 {
	 var endstr = document.cookie.indexOf (";", offset);
	 if (endstr == -1)
	 endstr = document.cookie.length;
	 return unescape(document.cookie.substring(offset, endstr));
	
	 }
	
	
	 //寫入到Cookie
	 function SetCookie(name, value, expires)
	 {
	 var argv = SetCookie.arguments;
	 //本例中length = 3
	 var argc = SetCookie.arguments.length;
	
	 var expires = (argc > 2) ? argv[2] : null;
	 var path = (argc > 3) ? argv[3] : null;
	 var domain = (argc > 4) ? argv[4] : null;
	 var secure = (argc > 5) ? argv[5] : false;
	 document.cookie = name + "=" + escape (value) +
	 ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	 ((path == null) ? "" : ("; path=" + path)) +
	 ((domain == null) ? "" : ("; domain=" + domain)) +
	 ((secure == true) ? "; secure" : "");
	 }
	
	 function ResetCookie()
	 {
	 var usr = document.getElementById('txtUserName').value;
	 var expdate = new Date();
	 SetCookie(usr, null, expdate);
	 }

	 </script>
	</head>
	<body onload="onLoginLoaded()">
	 <form id="form1" runat="server">
	 <div>
	 &nbsp;<asp:TextBox ID="txtUserName" runat="server" onblur="GetPwdAndChk()"></asp:TextBox>
	 <asp:TextBox ID="txtPassword" runat="server"></asp:TextBox>
	 <asp:CheckBox ID="chkRememberPwd" runat="server" Text="記住密碼" />
	 <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="進入 " OnClientClick="SetPwdAndChk()"/>
	 </div>
	 </form>
	</body>
	</html>
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