asp.net 错误信息记录到日志文件

昨天正式给上司汇报工作,大部分还比较满意.说道错误信息的处理方式怎么处理时有没有做错误日志;没,那就参考公司的的错误日志类操作类吧.

在global.asax里面添加也是实现HttpApplication的application_error事件

View Code

void Application_Error(object sender, EventArgs e) 

    { 

        // Code that runs when an unhandled error occurs

        // 在出现未处理的错误时运行的代码

        string errorLog = Server.MapPath("~/App_Data/Error.log");

        System.IO.FileStream fs = new System.IO.FileStream(errorLog, System.IO.FileMode.Append, System.IO.FileAccess.Write);

        System.IO.StreamWriter sw = new System.IO.StreamWriter(fs);

        Exception ex = Server.GetLastError();

        string IP = "";//客户端IP

        HttpRequest request = HttpContext.Current.Request;

        string result = request.ServerVariables["HTTP_X_FORWARDED_FOR"];

        if (null == result || result == String.Empty)

        {

            IP = request.ServerVariables["REMOTE_ADDR"];

        }

        else if (request.ServerVariables["HTTP_VIA"] != null)

        {

            IP = request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString().Split(',')[0].Trim();

        }

        else

        {

            IP = request.UserHostAddress;

        }

        if (ex.InnerException != null)

        {

            sw.WriteLine("IP:{0}\n时间:{1}\n错误消息:{2}\n位置:{3}\n地址：{4}\n\n", IP,DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss ffff"), ex.ToString(), ex.InnerException, Request.Url.AbsolutePath);

        }

        else if (ex != null)

        {

            sw.WriteLine("IP:{0}\n时间:{1}\n错误消息:{2}\n地址：{3}\n\n", IP,DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss ffff"), ex.ToString(), Request.Url.AbsolutePath);

        }

        else

        {

            sw.WriteLine("未知错误");

        }

        Server.ClearError();

        sw.Close(); 

    }

当然还要在app_data目录下新建一个error_log.txt文件