js读写cookie，保留用户名和密码-JavaSript-爱易网页

js读写cookie，保留用户名和密码

日期：2014-05-16　浏览次数：20486 次

js读写cookie，保存用户名和密码

<%@ page language="java" contentType="text/html; charset=gb2312" pageEncoding="gb2312"%>
<!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">
<%@ taglib prefix="html" uri="http://struts.apache.org/tags-html" %>       
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<title></title>
<link href="./pages/ipic/css/main.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="./pages/ipic/scripts/login.js"></script>
<style type="text/css">
<!--
body { margin: 0px auto; background-image: url(./pages/ipic/images/bg.jpg); text-align: center; background-repeat: repeat-x; background-color: #FFF;}
.foot { color: #666;}
-->
</style>

<script 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('username').value = usr;
		}else {
			document.getElementById('username').value = "001";
        }
        GetPwdAndChk();
	}
       
	function SetPwdAndChk() {  
        var usr = document.getElementById('username').value;
        SetLastUser(usr); 
        if(document.getElementById('chkRememberPwd').checked == true) {
            var pwd = document.getElementById('password').value;  
            var expdate = new Date();
            expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000));
            SetCookie(usr,pwd, expdate);
        }else{
            ResetCookie();
        }
    }
       
       
    function SetLastUser(usr)
    {
        var id = "49BAC005-7D5B-4231-8CEA-16939BEACD67";           
        var expdate = new Date();
        expdate.setTime(expdate.getTime() + 14 * (24 * 60 * 60 * 1000));               
        SetCookie(id, usr, expdate);
    }
   
    function GetPwdAndChk()
    {
        var usr = document.getElementById('username').value;
        var pwd = GetCookie(usr);
            
        if(pwd != null)
        {
            document.getElementById('chkRememberPwd').checked = true;
            document.getElementById('password').value = pwd;
        }
        else
        {
            document.getElementById('chkRememberPwd').checked = false;
            document.getElementById('password').value = "";
        }
    }
   
    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 = "true";
    function getCookieVal (offset)
    {          
        var endstr = document.cookie.indexOf (";", offset);      
        if (endstr == -1)
            endstr = document.cookie.length;
        return unescape(document.cookie.substring(offset, endstr));          
       
    }
   
   
    function SetCookie(name, value, expires)
    {
        var argv = SetCookie.arguments;
        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) ? "" : (";

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js读写cookie，保留用户名和密码

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