Inv*_*ige 5 .net c# windows service
我按照MSDN演示中的说明创建此Windows服务:创建Windows服务,成功安装后,我转到Services.msc启动Windows服务,在启动完成之前,我收到以下消息:
本地计算机上的EIWindowsService服务已启动,然后停止.如果某些服务未被其他服务或程序使用,则会自动停止.
我知道Windows服务启动正常,因为日志文件中有一个条目表明服务已启动.我在发布之前做了一些研究,并且Some Services Stop的答案自动说明问题可能是OnStart方法抛出错误,或者OnStart没有开始一个线程.所以我修改了我的代码,以便OnStart中唯一的东西是两个定时器和日志条目的启动因此不需要异常处理.我还添加了一个线程来"跳转"到另一个方法.
我再次尝试了Windows服务,我知道它"移动"到线程所指向的新方法,因为我在那里有一个日志条目,由于我正在做的一些转换而引发了aFormatException错误.我注释掉了转换,Windows服务仍然刚刚开始启动然后自动停止.
进一步的研究告诉我,我可能需要一个循环来保持方法中的处理,所以我从C-Windows Service获取信息服务并设置一个无限的while循环.我还发现可能正在进行垃圾收集,并按照MSDN Timer Class的示例部分中的建议为计时器建立了KeepAlive语句.还是一样的问题.
在这一点上,我觉得我已经完成了所有可以做的研究,所以在这里发表我的问题是合适的.我的所有代码都在下面,我会注意到在执行任何更改之前,我卸载了Windows服务,删除了安装项目,并从C#代码中删除了安装程序.然后,我进行了更改,并从指示如何设置安装程序的位置开始,再次使用演练中的说明.我每次都这样做,因为我发现如果我做了更改并且没有卸载Windows服务,删除安装项目,并删除安装程序,那么我的更改将不会对当前安装的Windows服务生效.
您可以给予的任何帮助将非常感激.我会再来这里15分钟,然后明天我会先检查一下.
SERVICE1.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Timers;
namespace EIWindowsService
{
public partial class Service1 : ServiceBase
{
Logs.ErrorLog logFile = new Logs.ErrorLog();
private System.Threading.Thread onStartThread;
public Service1()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
try
{
iTimer.Start();
iTimer.Elapsed += new ElapsedEventHandler(iTimer_Elapsed);
pTimer.Start();
pTimer.Elapsed += new ElapsedEventHandler(pTimer_Elapsed);
onStartThread = new System.Threading.Thread(TimerValue);
onStartThread.Start();
logFile.SendToLog("EIWindows Service started on " + GetDate());
}
catch (ArgumentOutOfRangeException ex)
{
logFile.SendToLog("ArgumentOutOfRangeException", "EIWindowsService\\Service1.cs", "OnStart()", ex);
} //end of ArgumentOutOfRangeException CATCH statement
}
protected override void OnStop()
{
iTimer.Stop();
pTimer.Stop();
logFile.SendToLog("EIWindowsService\\Service1.cs", "OnStop()", "EIWindows Service stopped on " + GetDate());
}
private void TimerValue()
{
try
{
/*commented out because it was throwing an exception error*/
//double iTimerValue = Convert.ToDouble(iTimer.ToString());
//double pTimerValue = Convert.ToDouble(pTimer.ToString());
while (1 > 0)
{
//if (iTimerValue % 1800000 == 0) //if the timer hits the 30min mark
//{
// logFile.SendToLog("Current iTimer Value = " + iTimerValue.ToString());
//}
//if (pTimerValue % 1800000 == 0) //if the timer hits the 30min mark
//{
// logFile.SendToLog("Current pTimer Value = " + pTimerValue.ToString());
//}
GC.KeepAlive(iTimer);
GC.KeepAlive(pTimer);
}
//TimerValue();
}
catch (OverflowException ex)
{
logFile.SendToLog("OverflowException", "EIWindowsService\\Service1.cs", "TimerValue()", ex);
} //end of OverflowException CATCH statement
catch (ArgumentException ex)
{
logFile.SendToLog("ArgumentException", "EIWindowsService\\Service1.cs", "TimerValue()", ex);
} //end of ArgumentException CATCH statement
catch (FormatException ex)
{
logFile.SendToLog("FormatException", "EIWindowsService\\Service1.cs", "TimerValue()", ex);
} //end of FormatException CATCH statement
}
private string GetDate()
{
string current = "No Date Recorded";
try
{
current = DateTime.Now.ToString("F");
}
catch (FormatException ex)
{
logFile.SendToLog("FormatException", "EIWindowsService\\Service1.cs", "GetDate()", ex);
} //end of FormatException CATCH statement
return current;
} //end of method GetDate
private void iTimer_Elapsed(object source, ElapsedEventArgs e)
{
try
{
iTimer.Stop();
ImportI();
iTimer.Start();
}
catch (ArgumentOutOfRangeException ex)
{
logFile.SendToLog("ArgumentOutOfRangeException", "EIWindowsService\\Service1.cs", "iTimer_Elapsed()", ex);
} //end of ArgumentOutOfRangeException CATCH statement
} //end of method iTimer_Elapsed
private void pTimer_Elapsed(object source, ElapsedEventArgs e)
{
try
{
pTimer.Stop();
ImportP();
pTimer.Start();
}
catch (ArgumentOutOfRangeException ex)
{
logFile.SendToLog("ArgumentOutOfRangeException", "EIWindowsService\\Service1.cs", "pTimer_Elapsed()", ex);
} //end of ArgumentOutOfRangeException CATCH statement
} //end of method pTimer_Elapsed
private void ImportI()
{
//does some action but commented out because it never gets here and is not relavant to this question.
} //end of method ImportI
private void ImportP()
{
//does some action but commented out because it never gets here and is not relavant to this question.
} //end of method ImportP
}
}
SERVICE1.DESIGNER.CS (相关人员)
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.pTimer = new System.Timers.Timer(10800000); //3hrs
this.iTimer = new System.Timers.Timer(3600000); //1hr
//
// pTimer
//
this.pTimer.Enabled = true;
//
// iTimer
//
this.iTimer.Enabled = true;
//
// Service1
//
this.ServiceName = "EIWindowsService";
}
#endregion
private System.Timers.Timer pTimer;
private System.Timers.Timer iTimer;
您无需创建单独的线程或担心垃圾收集器。该框架会为您处理所有这些事情。只需创建计时器，它们就会被调用。这是一个例子。
public partial class Service1 : ServiceBase
{
private Timer timer;
public Service1()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
timer = new Timer(1000);
timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
timer.Start();
}
void timer_Elapsed(object sender, ElapsedEventArgs e)
{
using (StreamWriter writer = File.AppendText(@"C:\Users\alfonso\Desktop\log.txt"))
{
writer.WriteLine(string.Format("{0} : {1}", DateTime.Now, "Logging from the service"));
}
}
protected override void OnStop()
{
}
}