用C#記錄網站日誌

當用戶點擊一個鏈接的時候，記錄下用戶在這個session用點擊了這個資源：

在鏈接中觸發onlick函數, onlick=ClickLog(clickLogText), 這是一個用ajax處理的異步請求 。

js文件中的代碼：

function ClickLog(clickLogText) {
    //alert("fefffffffffffe");
    var xmlHttp;

    try {
        // Firefox, Opera 8.0+, Safari
        xmlHttp = new XMLHttpRequest();
    }
    catch (e) {
        // Internet Explorer
        try {
            xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (e) {
                alert("您的瀏覽器不支持AJAX！");
                return false;
            }
        }
    }

    xmlHttp.open("GET", "/WriteLog.aspx?text=" + clickLogText, true);
    xmlHttp.send(null);
//    xmlHttp.onreadystatechange = function() {
//        if (xmlHttp.readyState == 4) {
//            不需要界面響應，

//        }
//    }

 

其中WriteLog.aspx.cs中的代碼是：這裏要注意一個多線程的問題，因爲多個用戶可能同時需要操作一個文件。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Threading;
using System.IO;

namespace Gucas
{
    public partial class WriteLog : System.Web.UI.Page
    {
        static Mutex m_WriteMutex = new Mutex();

        protected void Page_Load(object sender, EventArgs e)
        {
            string text = Request.QueryString["text"];
            
            string fileName = @".\Log\ClickLog" + DateTime.Now.ToString(".yyyMMdd");
            writeLine(fileName,text);
        }
       

        public void writeLine(string fileName, string dataText)
        {
            FileStream fs = null;
            StreamWriter sw = null;
            //用於處理多線程
            m_WriteMutex.WaitOne();

            try
            {
                //CHECK文件存在不
                if (!File.Exists(fileName))
                {
                    FileStream tempfs = File.Create(fileName);
                    tempfs.Close();
                }

                fs = new FileStream(fileName, FileMode.Append, FileAccess.Write, FileShare.None);
                fs.Seek(0, System.IO.SeekOrigin.End);
                sw = new StreamWriter(fs, System.Text.Encoding.UTF8);
                sw.WriteLine(dataText);

                if (sw != null)
                {
                    sw.Close();
                    sw = null;
                }
                if (fs != null)
                {
                    fs.Close();
                    fs = null;
                }

            }

            catch (Exception ex)
            {
            }

            finally
            {
                try
                {
                    if (sw != null)
                    {
                        sw.Close();
                        sw = null;
                    }

                    if (fs != null)
                    {
                        fs.Close();
                        fs = null;
                    }
                }
                catch
                {
                }

                m_WriteMutex.ReleaseMutex();

            }

          
        }
    }
}

}