如何将日志文件路径(log4net)从默认磁盘驱动器更改为备用磁盘驱动器

时间:2015-08-13 01:58:17

标签: c# log4net logfile

我使用log4net为我的应用程序写入日志文件。我已将日志文件路径设置如下:

<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
      <file value="D:\MyApp\LogFiles\MyApp_"/>
      <appendToFile value="true"/>
      <rollingStyle value="Date"/>
                    .  
                    .
                    .

日志文件保存在D盘中。如果D驱动器(默认日志文件位置)不可用/不存在,如何更改为C驱动器?是否可以在编码(C#)中这样做,或者我没有选择强迫其他用户拥有D驱动器?

2 个答案:

答案 0 :(得分:1)

appender可以在代码中配置而不是使用配置文件,因此很容易确定日志文件应放在代码中的哪个驱动器。更多细节请参阅another thread

答案 1 :(得分:0)

通过结合@Simonzhao提供的参考,解决方案将如下所示:

        public static Logger()
        {
            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = "%date %-5level %message%newline";
            patternLayout.ActivateOptions();

            RollingFileAppender rollingFileAppender = new RollingFileAppender();
            rollingFileAppender.AppendToFile = true;

            #region Write the log file into D drive, if D drive is not found, then into E drive, else C drive

            var diskDrive = DriveInfo.GetDrives();

            if (diskDrive.Where(drive => drive.Name == "D:\\").Count() == 1)
              rollingFileAppender.File = @"D:\LogFiles\MyApp_";

            else if (diskDrive.Where(drive => drive.Name == "E:\\").Count() == 1)
              rollingFileAppender.File = @"E:\LogsFiles\MyApp_";

            else
              rollingFileAppender.File = @"C:\LogFiles\MyApp_";

            #endregion

            rollingFileAppender.Layout = patternLayout;
            rollingFileAppender.MaxSizeRollBackups = 5;
            rollingFileAppender.MaximumFileSize = "5MB";
                          .
                          .
                          .
       }