js使用cookies存取用户名和密码

//记录Cookie

function SetCookie(name, value, days){

    var finalDays = 7; //cookie存储时间默认7天

    if (typeof (days) != "undefined" && !isNaN(days)){

        finalDays = parseInt(days);

    }

    var exp = new Date();

    exp.setTime(exp.getTime() + finalDays * 24 * 60 * 60 * 1000);

    document.cookie = name + "=" + escape(value) + ";path=/ ;expires=" + exp.toGMTString();

}

//删除Cookie

function DeleteCookie(name) {

    var exp = new Date();

    exp.setTime(exp.getTime() - 1);

    var cval = GetCookie(name);

    document.cookie = name + "=" + cval + "; path=/ ;expires=" + exp.toGMTString();

}

//获取Cookie

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;

        if (document.cookie.substring(i, j) == arg)

            return GetCookieVal(j);

        i = document.cookie.indexOf(" ", i) + 1;

        if (i == 0) break;

    }

    return null;

}

//获取Cookie

function GetCookieVal(offset) {

    var endstr = document.cookie.indexOf(";", offset);

    if (endstr == -1)

        endstr = document.cookie.length;

    return unescape(document.cookie.substring(offset, endstr));

}

//初始化用户名及密码

function GetUser(userIndex) {

    var nameKey = "RecordName";

    var pwdKey = "RecordPwd";

    if (userIndex > 0) {

        nameKey += userIndex;

        pwdKey += userIndex;

    }

    var loginCode = GetCookie(nameKey);

    var pwd = GetCookie(pwdKey);

    if (loginCode != null) {

        $("#txtLoginCode").val(loginCode);

    } else {

        $("#txtLoginCode").val("");

    }

    if (pwd != null) {

        $("#chkPwd").attr("checked", true);

        $("#txtPwd").val(pwd);

    } else {

        $("#chkPwd").attr("checked", false);

        $("#txtPwd").val("");

    }

}

//记录用户名、密码及用户头像

function SaveUser(loginCode, pwd, photoData) {

    //头像

    var userIndex = 0;

    var loginType = $("#hidLoginType").val().toLowerCase();

    var photoKey = "RecordPhoto";

    if (loginType == "slide") {

        userIndex = $(".contentUser ul li.loginCurrent").index();

        if (userIndex > 0) {

            photoKey += userIndex;

        }

    }

    if (photoData) {

        SetCookie(photoKey, photoData);

    } else {

        DeleteCookie(photoKey);

    }

    //用户名、密码

    var nameKey = "RecordName";

    var pwdKey = "RecordPwd";

    if (userIndex > 0) {

        nameKey += userIndex;

        pwdKey += userIndex;

    }

    SetCookie(nameKey, loginCode);

    if ($("#chkPwd").attr("checked"))

        SetCookie(pwdKey,pwd);

    else

        DeleteCookie(pwdKey);

}

//判断浏览器是否禁用cookie

function IsAllowCookie() {

    var flag = false;

    if ($.browser.msie) {

        var cookieStr = "wb_check=kcehc_bw";

        document.cookie = cookieStr;

        if (document.cookie.indexOf(cookieStr) > -1) {

            flag = true;

            var date = new Date();

            date.setTime(date.getTime() - 1000);

            document.cookie = cookieStr + "; expires=" + date.toGMTString();

        }

    } else {

        flag = navigator.cookieEnabled;

    }

    return flag;

}

function Login() {

    if (CheckInput()) {

        var loginCode = $.trim($("#txtLoginCode").val());

        var pwd = $.trim($("#txtPwd").val());

        SetCookie(loginCode,pwd,7);

        SaveUser(loginCode,pwd,7);

        $("#spring_sexurity_login_form").submit();

    }

}