写入事件日志时出错,阻止Windows服务启动？

Question

我使用以下代码在我的Windows服务应用程序中创建自定义事件日志:

public ServiceConstructor()
{
  InitializeComponent();
  if (!EventLog.SourceExists("WinService"))
  {
    EventLog.CreateEventSource("WinService", "WinServiceLog");
    eventLog1.Source = "WinService";
    eventLog1.Log = "WinServiceLog";
  }
}
protected override void OnStart(string[] args)
{
 eventLog1.WriteEntry("Started");
}

安装service.msi后,当我启动服务时,它启动然后停止.然后我在EventViewer Windows日志部分中发现以下错误:

服务无法启动.System.ArgumentException:在写入事件日志之前未设置Source属性.

at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID, Int16 category, Byte[] rawData) at System.Diagnostics.EventLog.WriteEntry(String message) at WinService.Service.OnStart(String[] args) at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)

Answer 1

如果源已存在,则看起来您没有初始化eventLog1.Source.

建议您将初始化代码移动到OnStart并从构造函数中移出.

并将这两行移出if语句:

eventLog1.Source = "WinService";
eventLog1.Log = "WinServiceLog";

Answer 2

请尝试以下方法:

EventLog.CreateEventSource("WinService", "Application");
和 eventLog1.Log = "Application";

还在OnStart中添加以下内容:

eventLog1.Log="Application"
eventLog1.Source = "WinService";