可以在global文件中的application_error()中，记录用户操作中出现的异常日志

        

protected

 

void

 Application_Error(Object sender, EventArgs e)

    

{

            try

            {

                Exception exception = HttpContext.Current.Server.GetLastError();

                // 如果有异常，则记录异常

                if (exception != null)

                {

                    exception = exception.GetBaseException();

                    log4net.ILog log = log4net.LogManager.GetLogger("ErrorLogFileAppender");

    

                    //先注释掉，用于开发调试之用

                    // 保存异常记录

                    System.Text.StringBuilder errorMessage = new System.Text.StringBuilder();

                    errorMessage.Append(Environment.NewLine);

                    errorMessage.Append("异常消息:");

                    errorMessage.Append(exception.Message);

                    errorMessage.Append(Environment.NewLine);

    

                    errorMessage.Append("异常用户:");

                    errorMessage.Append(Environment.NewLine);

    

                    errorMessage.Append("异常时间:");

                    errorMessage.Append(System.DateTime.Now.ToString());

                    errorMessage.Append(Environment.NewLine);

    

                    errorMessage.Append("异常位置:");

                    errorMessage.Append(Environment.NewLine);

                    errorMessage.Append(exception.StackTrace);

                    errorMessage.Append(Environment.NewLine);

                    OperationLogBL logBl = new OperationLogBL();

                    OperationLogData data = new OperationLogData();

                    data.OperateDate    = DateTime.Now;

                    data.OperatorId        = CurrentUser.Info.UserID;

                    data.OperatorName    = CurrentUser.Info.UserName;

                    data.OperatorEnName    = CurrentUser.Info.UserNameEn;

                    data.TypeNo            = (int)Model.LogType.错误日志;

                    data.Remark            = errorMessage.ToString();

                    data.ModifiedId        = exception.Source;

                    data.ModifiedItem    = Request.UserHostAddress;

                    data.OldValue        = Request.RawUrl.ToString();

                    logBl.Add(data);

                } // end if (exception != null)

            }

            catch (Exception ex)

            {

                System.Diagnostics.Debug.WriteLine(ex.Message);

            }

                  // 跳转至 [异常提示] 页面

                  if (ConfigurationSettings.AppSettings["EnableErrorPage"].ToLower() == "true")

                  {

                    string url = ConfigurationSettings.AppSettings["NoRightRedirect"];

                    Response.Redirect(url);

                  }

        }

net的错误机制处理：

。<customErrors> 配置节支持内部 <error> 标记，该标记将 HTTP 状态代码与自定义错误页关联。例如：

<

configuration

>

  

<

system

.web

>

    

<

customErrors 

mode

="RemoteOnly"

 defaultRedirect

="/genericerror.htm"

>

      

<

error 

statusCode

="500"

 redirect

="/error/callsupport.htm"

/>

      

<

error 

statusCode

="404"

 redirect

="/error/notfound.aspx"

/>

      

<

error 

statusCode

="403"

 redirect

="/error/noaccess.aspx"

/>

    

</

customErrors

>

  

</

system.web

></

configuration

>

mode   

mode:指示自定义错误是启用、禁用还是只向远程计算机显示。值：On、Off、RemoteOnly（默认值）。