网站访问量

       <li>访问量：<asp:Literal ID="ltlVistorNum" runat="server"></asp:Literal></li>

using System;
using System.Xml;
using System.IO;
 
public partial class Controls_Footer : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string vistorNumFile = Server.MapPath("~/") + "vistorNum.xml";
            XmlDocument xmldoc = new XmlDocument();
            try
            {
                if (!File.Exists(vistorNumFile))
                {
                    xmldoc.AppendChild(xmldoc.CreateXmlDeclaration("1.0", "UTF-8", null));
                    XmlElement firstElement = xmldoc.CreateElement("", "data", "");
                    xmldoc.AppendChild(firstElement);
 
                    XmlElement secondElement = xmldoc.CreateElement("vistorNumber");
                    secondElement.InnerText = "8000500";
                    firstElement.AppendChild(secondElement);
 
                    ltlVistorNum.Text = secondElement.InnerText;
                }
                else
                {
                    xmldoc.Load(vistorNumFile);//xmlPath为xml文件路径
                    XmlNode xmlNode = xmldoc.SelectSingleNode("/data/vistorNumber");
                    xmlNode.InnerText = (Convert.ToInt32(xmlNode.InnerText) + 1) + "";
                    ltlVistorNum.Text = xmlNode.InnerText;
                }
                xmldoc.Save(vistorNumFile);
            }
 
            catch
            {
                ltlVistorNum.Text = "8000000";
            }
            finally
            {
                xmldoc = null;
            }
        }
    }
}