纯js记住密码实现%@ page languagejava importjava.util.* pageEncodingUTF-8%%String path
纯js记住密码实现
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";String IsPostBack="False";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>js COOKIE 记住帐号或密码</title><script type="text/javascript"> window.onload=function onLoginLoaded() { if (isPostBack == "False") { GetLastUser(); } }; function GetLastUser() { var id = "49BAC005-7D5B-4231-8CEA-16939BEACD67";//GUID标识符 var usr = GetCookie(id); if (usr != null) { document.getElementById('txtUserName').value = usr; } else { document.getElementById('txtUserName').value = "001"; } GetPwdAndChk(); } //点击登录时触发客户端事件 function SetPwdAndChk() { //取用户名 var usr = document.getElementById('txtUserName').value; alert("用户名："+usr); //将最后一个用户信息写入到Cookie SetLastUser(usr); //如果记住密码选项被选中 if (document.getElementById('chkRememberPwd').checked == true) { //取密码值 var pwd = document.getElementById('txtPassword').value; alert("你选择了记住密码，我们将记住你的密码："+pwd); var expdate = new Date(); expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000)); //将用户名和密码写入到Cookie SetCookie(usr, pwd, expdate); } else { //如果没有选中记住密码,则立即过期 ResetCookie(); } } function SetLastUser(usr) { var id = "49BAC005-7D5B-4231-8CEA-16939BEACD67"; var expdate = new Date(); //当前时间加上两周的时间 expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000)); SetCookie(id, usr, expdate); } //用户名失去焦点时调用该方法 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));}//写入到Cookiefunction SetCookie(name, value, expires) {var argv = SetCookie.arguments;//本例中length = 3var 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><form id="form1"><div>用户名: <input type="text" ID="txtUserName" onblur="GetPwdAndChk()"><input type="password" ID="txtPassword"> 密码： <inputtype="checkbox" ID="chkRememberPwd" /> 记住密码 <input type="button"OnClick="SetPwdAndChk()" value="进入" /></div></form></body></html>?