Application_Error异常处理

/// <summary>

        ///  捕捉异常

        /// </summary>

        protected void Application_Error()

        {

            // 获得前一个异常的实例

            var ex = Server.GetLastError().GetBaseException();

            {

                var sbError = new StringBuilder();

                sbError.AppendFormat("Url OriginalString：{0}\r\n", Request.Url.OriginalString);

                sbError.AppendFormat("URL PathAndQuery：{0}\r\n", Request.Url.PathAndQuery);

                sbError.AppendFormat("URL.ToString()：{0}\r\n", Request.Url.ToString());

                sbError.AppendFormat("URL AbsoluteUri：{0}\r\n", Request.Url.AbsoluteUri);

                var query = (string.IsNullOrEmpty(Request.Url.Query) ? "" : "?" + Request.Url.Query);

                sbError.AppendFormat("Query：{0}\r\n", query);

                sbError.AppendFormat("发生时间：{0}\r\n", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ffff"));

                sbError.AppendFormat("异常IP：{0}\r\n", PcHelper.GetInstance.GetIp());

                sbError.AppendFormat("异常电脑名称：{0}\r\n", PcHelper.GetInstance.GetUserHostName());

                sbError.AppendFormat("浏览器：{0}\r\n", PcHelper.GetInstance.GetBrowser());

                var urlRefer = string.Empty;

                if (Request.UrlReferrer != null)

                {

                    urlRefer = Request.UrlReferrer.OriginalString;

                }

                sbError.AppendFormat("URLRefer OriginalString：{0}\r\n", urlRefer);

                sbError.AppendFormat("错误时间：{0}\r\n", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ffff"));

                sbError.AppendFormat("错误文件：{0}\r\n", ex.Source);

                sbError.AppendFormat("错误信息：{0}\r\n", ex.Message);

                sbError.AppendFormat("引发错误的方法：{0}\r\n", ex.TargetSite);

                sbError.AppendFormat("错误堆栈：{0}\r\n", ex.StackTrace);



                // 将错误记录到日志中

                FileHelper.GetInstance.WriteToFile(Server.MapPath(CommonConst.ErrorLogPath), sbError.ToString());

            }

        }