Windows服务示例简要说明（系统事件日志、运行批处理、安装卸载、启动调试）

一般来说，使用Windows服务多半是用于监控，应用范围包含了硬件控制、应用程序监视、系统级应用、诊断、报告、Web和文件系统服务等功能，用处十分广泛。

这里简要说明一下windows服务的基本使用，即代码编写、调试方法、安装与卸载。

新建Windows服务项目后，在Service中可以看到重载了启动、停止方法，当然还有暂停和继续……

protected override void OnStart(string[] args)
{
    Thread.Sleep(1000 * 10);
    mainThread.Start();
}

protected override void OnStop()
{
    mainThread.Abort();
}

顺便提一下，在服务代码中一般都会用写文件、线程、通过注册表读写用户信息等操作，所以这些应用也是很重用的。

StreamWriter sw = null;
if (!File.Exists(filePath))
{
    sw = File.CreateText(filePath);
}
else
{
    sw = File.AppendText(filePath);
}

if (sw != null)
{
    sw.WriteLine("-------------------------监测日志---------------------");
    sw.WriteLine(currentDateTime.ToString());
    sw.WriteLine(applicationLog);
    sw.Close();
}

Windows Log

string[] logs = new string[] { "Application"/*, "System" */};
StringBuilder result = new StringBuilder();
foreach (string log in logs)
{
    EventLog eventLog = new EventLog();
    eventLog.Log = log;
    //eventLog.Source = "Application Error";
    foreach (EventLogEntry entry in eventLog.Entries)
    {
        if (entry.TimeGenerated >= queryTime || entry.TimeWritten >= queryTime)
        {
            if (entry.EntryType == EventLogEntryType.Error && entry.Source == "Application Error")
            {
                result.Append(log);
                result.Append(entry.EntryType.ToString());
                result.Append("(" + entry.TimeWritten.ToString() + ")：");
                result.Append(entry.Message);

                isRestartAmpJettyService = true;
            }
        }
    }
}

operation regedit,Execute bat file,kill process

string keyPath = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders";
RegistryKey currentUser = Registry.CurrentUser;
RegistryKey shellKey= currentUser.OpenSubKey(keyPath);

if (softwareKeys != null)
{
desktopValue = shellKey.GetValue("Desktop").ToString();
result = true;
}

Process process = new Process();
process.StartInfo.FileName = desktopPath + "ServerJetty.bat";
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.CreateNoWindow = true;
process.Start();

WriteLog(process.StandardOutput.ReadToEnd());

Process[] processes = Process.GetProcesses();
foreach (Process process in processes)
{
    if (process.ProcessName.ToLower().CompareTo("java") == 0)
    {
        process.Kill();
    }
}

编写安装和卸载服务

进入Service的设计界面，右击选择“add installer”就会添加相应的服务，如下