使用ajax让session永不过期

来源:互联网 发布:罗马军团到中国 知乎 编辑:程序博客网 时间:2024/04/29 14:37

-----------------WebLogin.aspx----------------------------

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    
</head>
<body>
    <form id="form1" runat="server">
    <div>
    用户:<asp:TextBox ID="txtUserName" runat="server"></asp:TextBox><br />
    密码:<asp:TextBox ID="txtPwd" runat="server"></asp:TextBox><br />
        <asp:Button ID="Button1" runat="server" Text="登录" onclick="Button1_Click" />
    </div>
    </form>
</body>
</html>

---------------------------WebLogin.aspx.cs-------------------------------------

namespace WebApplication2
{
    public partial class WebLogin : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (txtUserName.Text=="admin"&& txtPwd.Text=="888888")
            {
                Session["user"] = txtUserName.Text;
                Response.Redirect("WebBlock.aspx");
            }
        }
    }
}

--------------------------WebBlock.aspx----------------------------------

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script src="js/Jquery1.7.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {
            function post() {
                $.ajax({
                    type: "post",
                    contentType: "application/json",
                    url: "WebBlock.aspx"
                })
            }
            
        })
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server" Height="409px" TextMode="MultiLine" 
            Width="449px"></asp:TextBox>
        <asp:Button ID="Button1"
            runat="server" Text="保存" OnClientClick="" onclick="Button1_Click" />
    </div>
    </form>
</body>
</html>

-----------------------WebBlock.aspx.cs-----------------------------------------------

namespace WebApplication2
{
    public partial class WebBlock : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            if (Session["user"] != null)
            {
                FileStream stream = File.Open(@"d:\1.txt", FileMode.OpenOrCreate, FileAccess.Write);
                StreamWriter writer = new StreamWriter(stream);
                writer.Write(TextBox1.Text);
                writer.Dispose();
                stream.Dispose();
            }
            else
            {
                Response.Redirect("Error.aspx");
            }
        }
    }
}

-------------------------Web.config----------------------------------------

<configuration>
    <system.web>
        <compilation debug="true" targetFramework="4.0" />
      <sessionState timeout="1"/>
    </system.web>
</configuration>

-------------------------------Error.aspx---------------------------------------------

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    登录超时,重新登录
    </div>
    </form>
</body>
</html>

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