javascript - 使用应用程序期间 session 超时

Question

目前我正在编写一个 Web 应用程序，但一些同事有时会提到，他们在使用 Web 应用程序期间遇到 session 超时。我无法重现该错误，并且不确定可能是什么错误。因为主动工作有足够的页面加载，因此自上次点击以来的时间短于 15 分钟的超时。还有什么原因呢？

Web.config:

<sessionState mode="InProc" timeout="3" customProvider="DefaultSessionProvider">

自动重定向c#:

public partial class AutoRedirect : System.Web.UI.UserControl
    {
        public string LoginDate;
        public string ExpressDate;
        protected void Page_Load(object sender, EventArgs e)
        {
            string PageName = Path.GetFileName(Request.Url.AbsolutePath);

            // Check session is expire or timeout.
            if (Session["username"] == null)
            {
                if (PageName != Constants.defaultPage && PageName != Constants.loginPage)
                {
                    Response.Redirect(Constants.defaultPage);
                }
            }

            // Get user login time or last activity time.
            DateTime date = DateTime.Now;
            LoginDate = date.ToString("u", DateTimeFormatInfo.InvariantInfo).Replace("Z", "");
            int sessionTimeout = Session.Timeout;
            DateTime dateExpress = date.AddMinutes(sessionTimeout);
            ExpressDate = dateExpress.ToString("u", DateTimeFormatInfo.InvariantInfo).Replace("Z", "");
        }
    }

自动重定向 ascx:

<script type="text/javascript">
    var timeRefresh;
    var timeInterval;
    var currentTime;
    var expressTime;

    expressTime = "<%=ExpressDate %>";
    currentTime = "<%=LoginDate %>";
    setCookie("express", expressTime);
    timeRefresh = setInterval("Refresh()", 1000);

    // Refresh this page to check session is expire or timeout.
    function Refresh() {
        var current = getCookie("express");
        var date = current.split(" ")[0];
        var time = current.split(" ")[1];
        var scriptDate = new Date();
        var year = scriptDate.getFullYear();
        var month = scriptDate.getMonth() + 1;
        var day = scriptDate.getDate();
        var hour = scriptDate.getHours();
        var min = scriptDate.getMinutes();
        var second = scriptDate.getSeconds();
        if (Date.UTC(year, month, day, hour, min, second) >=
           Date.UTC(date.split("-")[0], date.split("-")[1], date.split("-")[2],
           time.split(":")[0], time.split(":")[1], time.split(":")[2])) {
            clearInterval(timeRefresh);
            Redirect();
        }
    }

    function Redirect() {
        window.location.replace("Login.aspx?s=ex");
    }

    // Retrieve cookie by name.
    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;
    }

    function getCookieVal(offSet) {
        var endStr = document.cookie.indexOf(";", offSet);
        if (endStr == -1) {
            endStr = document.cookie.length;
        }
        return unescape(document.cookie.substring(offSet, endStr));
    }

    // Assign values to cookie variable.
    function setCookie(name, value) {
        document.cookie = name + "=" + escape(value);
    }

    function getParameterByName(name) {
        name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
        var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
            results = regex.exec(location.search);
        return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
    }

    $(document).ready(function () {
        if (getParameterByName('s') == 'ex') {
            OpenDialogForSessionExpired();
        }
    })
</script>

Answer 1

请检查global.asax中的Session_Start。

您是否设置了Session.Timeout = x？

对于重定向，您可以使用:

Response.AppendHeader("Refresh", Convert.ToString(Session.Timeout * 60) + ";URL=Login.aspx");

在主页 Page_Load 方法中。