[C#]通用守护进程服务

<span style="color: #0000ff;">namespace<span style="color: #000000;"> WindowsService.Watch
{
<span style="color: #0000ff;">partial <span style="color: #0000ff;">class<span style="color: #000000;"> ServiceWather : ServiceBase
{
<span style="color: #0000ff;">private <span style="color: #0000ff;">static <span style="color: #0000ff;">string currentExePath = <span style="color: #0000ff;">string<span style="color: #000000;">.Empty;
<span style="color: #0000ff;">public<span style="color: #000000;"> ServiceWather()
{
InitializeComponent();
currentExePath =<span style="color: #000000;"> AppDomain.CurrentDomain.BaseDirectory;
}
<span style="color: #808080;">/// <span style="color: #808080;">

<span style="color: #808080;">///<span style="color: #008000;"> 检查间隔
<span style="color: #808080;">/// <span style="color: #808080;">

<span style="color: #0000ff;">private <span style="color: #0000ff;">static <span style="color: #0000ff;">readonly <span style="color: #0000ff;">int _timerInterval = Convert.ToInt32(ConfigurationManager.AppSettings[<span style="color: #800000;">"<span style="color: #800000;">timerInterval<span style="color: #800000;">"]) * <span style="color: #800080;">1000<span style="color: #000000;">;
<span style="color: #808080;">/// <span style="color: #808080;">

<span style="color: #808080;">///<span style="color: #008000;"> 要守护的服务名
<span style="color: #808080;">/// <span style="color: #808080;">

<span style="color: #0000ff;">private <span style="color: #0000ff;">static <span style="color: #0000ff;">readonly <span style="color: #0000ff;">string toWatchServiceName = ConfigurationManager.AppSettings[<span style="color: #800000;">"<span style="color: #800000;">toWatchServiceName<span style="color: #800000;">"<span style="color: #000000;">];
<span style="color: #0000ff;">private<span style="color: #000000;"> System.Timers.Timer _timer;
<span style="color: #0000ff;">protected <span style="color: #0000ff;">override <span style="color: #0000ff;">void OnStart(<span style="color: #0000ff;">string<span style="color: #000000;">[] args)
{
<span style="color: #008000;">//<span style="color: #008000;">服务启动时开启定时器
_timer = <span style="color: #0000ff;">new<span style="color: #000000;"> System.Timers.Timer();
_timer.Interval =<span style="color: #000000;"> _timerInterval;
_timer.Enabled = <span style="color: #0000ff;">true<span style="color: #000000;">;
_timer.AutoReset = <span style="color: #0000ff;">true<span style="color: #000000;">;
_timer.Elapsed +=<span style="color: #000000;"> _timer_Elapsed;
LogHelper.WriteLog(currentExePath,<span style="color: #800000;">"<span style="color: #800000;">守护服务开启<span style="color: #800000;">"<span style="color: #000000;">);
}

    </span><span style="color: #0000ff;"&gt;void</span> _timer_Elapsed(<span style="color: #0000ff;"&gt;object</span><span style="color: #000000;"&gt; sender,System.Timers.ElapsedEventArgs e)
    {
        </span><span style="color: #008000;"&gt;//</span><span style="color: #008000;"&gt;如果服务状态为停止，则重新启动服务</span>
        <span style="color: #0000ff;"&gt;if</span> (!<span style="color: #000000;"&gt;CheckSericeStart(toWatchServiceName))
        {
            StartService(toWatchServiceName);
        }
    }

    </span><span style="color: #0000ff;"&gt;protected</span> <span style="color: #0000ff;"&gt;override</span> <span style="color: #0000ff;"&gt;void</span><span style="color: #000000;"&gt; OnStop()
    {
        </span><span style="color: #0000ff;"&gt;if</span> (_timer != <span style="color: #0000ff;"&gt;null</span><span style="color: #000000;"&gt;)
        {
            _timer.Stop();
            _timer.Dispose();
            LogHelper.WriteLog(currentExePath,</span><span style="color: #800000;"&gt;"</span><span style="color: #800000;"&gt;守护服务停止</span><span style="color: #800000;"&gt;"</span><span style="color: #000000;"&gt;);
        }
    }
    </span><span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;<summary></span>
    <span style="color: #808080;"&gt;///</span><span style="color: #008000;"&gt; 启动服务
    </span><span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;</summary></span>
    <span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;<param name="serviceName"&gt;</span><span style="color: #008000;"&gt;要启动的服务名称</span><span style="color: #808080;"&gt;</param></span>
    <span style="color: #0000ff;"&gt;private</span> <span style="color: #0000ff;"&gt;void</span> StartService(<span style="color: #0000ff;"&gt;string</span><span style="color: #000000;"&gt; serviceName)
    {
        </span><span style="color: #0000ff;"&gt;try</span><span style="color: #000000;"&gt;
        {
            ServiceController[] services </span>=<span style="color: #000000;"&gt; ServiceController.GetServices();
            </span><span style="color: #0000ff;"&gt;foreach</span> (ServiceController service <span style="color: #0000ff;"&gt;in</span><span style="color: #000000;"&gt; services)
            {
                </span><span style="color: #0000ff;"&gt;if</span> (service.ServiceName.Trim() ==<span style="color: #000000;"&gt; serviceName.Trim())
                {
                    service.Start();
                    </span><span style="color: #008000;"&gt;//</span><span style="color: #008000;"&gt;直到服务启动</span>
                    service.WaitForStatus(ServiceControllerStatus.Running,<span style="color: #0000ff;"&gt;new</span> TimeSpan(<span style="color: #800080;"&gt;0</span>,<span style="color: #800080;"&gt;0</span>,<span style="color: #800080;"&gt;30</span><span style="color: #000000;"&gt;));
                    LogHelper.WriteLog(currentExePath,</span><span style="color: #0000ff;"&gt;string</span>.Format(<span style="color: #800000;"&gt;"</span><span style="color: #800000;"&gt;启动服务:{0}</span><span style="color: #800000;"&gt;"</span><span style="color: #000000;"&gt;,serviceName));
                }
            }
        }
        </span><span style="color: #0000ff;"&gt;catch</span><span style="color: #000000;"&gt; (Exception ex)
        {
            LogHelper.WriteLog(currentExePath,ex);
        }
    }
    </span><span style="color: #0000ff;"&gt;private</span> <span style="color: #0000ff;"&gt;bool</span> CheckSericeStart(<span style="color: #0000ff;"&gt;string</span><span style="color: #000000;"&gt; serviceName)
    {
        </span><span style="color: #0000ff;"&gt;bool</span> result = <span style="color: #0000ff;"&gt;true</span><span style="color: #000000;"&gt;;
        </span><span style="color: #0000ff;"&gt;try</span><span style="color: #000000;"&gt;
        {
            ServiceController[] services </span>=<span style="color: #000000;"&gt; ServiceController.GetServices();
            </span><span style="color: #0000ff;"&gt;foreach</span> (ServiceController service <span style="color: #0000ff;"&gt;in</span><span style="color: #000000;"&gt; services)
            {
                </span><span style="color: #0000ff;"&gt;if</span> (service.ServiceName.Trim() ==<span style="color: #000000;"&gt; serviceName.Trim())
                {
                    </span><span style="color: #0000ff;"&gt;if</span> ((service.Status ==<span style="color: #000000;"&gt; ServiceControllerStatus.Stopped)
                        </span>|| (service.Status ==<span style="color: #000000;"&gt; ServiceControllerStatus.StopPending))
                    {
                        result </span>= <span style="color: #0000ff;"&gt;false</span><span style="color: #000000;"&gt;;
                    }
                }
            }
        }
        </span><span style="color: #0000ff;"&gt;catch</span><span style="color: #000000;"&gt; (Exception ex)
        {
            LogHelper.WriteLog(currentExePath,ex);
        }
        </span><span style="color: #0000ff;"&gt;return</span><span style="color: #000000;"&gt; result;
    }
    </span><span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;<summary></span>
    <span style="color: #808080;"&gt;///</span><span style="color: #008000;"&gt; 停止
    </span><span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;</summary></span>
    <span style="color: #808080;"&gt;///</span> <span style="color: #808080;"&gt;<param name="serviceName"&gt;</param></span>
    <span style="color: #0000ff;"&gt;private</span> <span style="color: #0000ff;"&gt;void</span> StopService(<span style="color: #0000ff;"&gt;string</span><span style="color: #000000;"&gt; serviceName)
    {
        </span><span style="color: #0000ff;"&gt;try</span><span style="color: #000000;"&gt;
        {
            ServiceController[] services </span>=<span style="color: #000000;"&gt; ServiceController.GetServices();
            </span><span style="color: #0000ff;"&gt;foreach</span> (ServiceController service <span style="color: #0000ff;"&gt;in</span><span style="color: #000000;"&gt; services)
            {
                </span><span style="color: #0000ff;"&gt;if</span> (service.ServiceName.Trim() ==<span style="color: #000000;"&gt; serviceName.Trim())
                {
                    service.Stop();
                    </span><span style="color: #008000;"&gt;//</span><span style="color: #008000;"&gt;直到服务停止</span>
                    service.WaitForStatus(ServiceControllerStatus.Stopped,ex);
        }
    }
}

}