C# 当windows服务自动运行时，log4net不工作

我创建了一个windows服务程序并安装该服务：用于log4net的以下配置：

<log4net>
<root>
  <level value="All" />
  <appender-ref ref="RollingLogFileAppender" />
</root>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
  <file type="log4net.Util.PatternString" value="D:\\Logs\\Menca.DataImportService\\%property{LogName}\\%property{LogName}.txt" />
  <appendToFile value="true" />
  <rollingStyle value="Composite" />
  <datePattern value="yyyyMMdd" />
  <maxSizeRollBackups value="2000" />
  <maximumFileSize value="500KB" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
  </layout>
</appender>    

计时器将每24小时调用一次：

private void TimerTick(object sender)
    {
        try
        {
            // Thread.Sleep(15000);
            rCount = 0;
            iCount = 0;

            Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");

            _eventLog.WriteEntry(string.Concat("Scheduled Service Call Start Hour: ", System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")));

            Helper.StartDataDump();

            _eventLog.WriteEntry(string.Concat("Scheduled Service Call End Hour: ", System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")));
            _eventLog.WriteEntry(string.Concat("Scheduled service call was processed successfully! : ", System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")));

        }
        catch (Exception ex)
        {
            string errMsg = ex.InnerException == null ? ex.InnerException.Message : ex.Message;
            _eventLog.WriteEntry("Error occured in scheduled service call Exception: " + errMsg);
        }
    }

---

这与log4net无关，因为您甚至没有使用它（

WriteEntry

是一种

EventLog

方法，而不是

ILog

方法）。要使用log4net，您需要配置，从

LogManager

获取记录器，然后使用日志记录方法。样本：

log4net.Config.XmlConfigurator.Configure();
var logger = LogManager.GetLogger("root");
log.Info("Information message");

但是，您遇到的问题是

计时器

。我建议完成已完成的操作，因为它将在当前回调完成后启动下一个超时

private Timer _timer;
private ILog _logger = LogManager.GetLogger("root"); // Get the log4net logger
private const int _timeoutInMilliseconds = 10000;    // 10 seconds

public void Start()
{
    _timer = new Timer(new TimerCallback(timerTick),
            null,
            _timeoutInMilliseconds, // Timeout to wait until the callback is called
            Timeout.Infinite        // Makes sure it's only called once
         );
}
private void timerTick(object sender)
{
    _logger.Info("Sample");
    _timer.Change(_timeoutInMilliseconds, Timeout.Infinite); // Wait 10 seconds again
}

否则，您可以通过执行以下操作修复计时器，使其在特定超时后调用回调：

_timer = new Timer(new TimerCallback(timerTick),
        null,
        0,                     // Set a time here for an initial timeout
        _timeoutInMilliseconds // It will call timerTick every 10 seconds
     );

---

您的TimerTick方法似乎没有使用Log4net！我在Helper.StartDataDump（）中使用了它；我没有在上面提到，无论如何，最后我发现问题是log4net在服务启动时只初始化了一次&然后它将在写入日志时使用相同的配置，但在相同的配置路径上。

_timer = new Timer(new TimerCallback(timerTick),
        null,
        0,                     // Set a time here for an initial timeout
        _timeoutInMilliseconds // It will call timerTick every 10 seconds
     );