采用Cookie记录上次访问记录

每次导出文件是，记录Cookie

            //写导出的Cookie，以后导出不用每次都选择要导出的字段
            var cookie_name = "ExportColumnsStr";
            var cookie_value = exportColumnCodesVal;
            var cookie_expireHours = 240 * 3600 * 1000;;
           
            var date = new Date();
            var str = cookie_name + "=" + cookie_value;
            date.setTime(date.getTime() + cookie_expireHours);
            str += "; expires=" + date.toGMTString();
            window.document.cookie = str;

 

在页面初始化时，获取Cookie值

 var arrStr = document.cookie.split("; ");
    for (var i = 0; i < arrStr.length; i++) {
        var temp = arrStr[i].split("=");
        if (temp[0] == "ExportColumnsStr") {
            CookieExport = temp[1];
        }
    }

后以此作为参数进行ajax调用