时序数据库InfluxDb服务化
时序数据库InfluxDb服务化
- 背景
- 环境
- 代码实现
背景
因工控软件开发中需要保存大量设备数据，因此通过在网上查阅发现时序数据库InfluxDb用的还是很多的，InfluxDb集群版是商业软件，且在工控机上也不太适合用集群版本。单机版InfluxDb是基于命令的，一直有个黑窗口，现场操作工不小心很容易把它关掉，因此我就把InfluxDb封装成一个Windows服务，隐藏掉黑窗口，并随开机自启动。
环境
InfluxDb版本：influxdb-1.4.3-1
开发语言：C#
Windows宿主框架：TopShelf
任务调度框架：Quartz
日志记录框架：Log4net
代码实现
关键代码就是如何隐藏黑窗口打开Influxd.exe进程，如下
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
namespace Mesnac.Basic
{
/// 成功返回true，失败返回false
public static bool ExcuteDosCommand(string cmd, bool isShowCmdWindow, bool isCloseCmdProcess)
{
try
{
Process p = new Process();
p.StartInfo.FileName = "cmd";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = !isShowCmdWindow;
p.OutputDataReceived += new DataReceivedEventHandler(delegate(object sender, DataReceivedEventArgs e) {
if (!String.IsNullOrEmpty(e.Data))
{
Mesnac.Log.LogService<WinCmdHelper>.Instance.Debug(e.Data);
}
});
p.Start();
StreamWriter cmdWriter = p.StandardInput;
p.BeginOutputReadLine();
if (!String.IsNullOrEmpty(cmd))
{
cmdWriter.WriteLine(cmd);
}
cmdWriter.Close();
p.WaitForExit();
if (isCloseCmdProcess)
{
p.Close();
}
Mesnac.Log.LogService<WinCmdHelper>.Instance.Info(String.Format("成功执行Dos命令[{0}]!", cmd));
return true;
}
catch (Exception ex)
{
Mesnac.Log.LogService<WinCmdHelper>.Instance.Error("执行命令失败，请检查输入的命令是否正确:" + ex.Message, ex);
return false;
}
}
#endregion
#region 判断指定的进程是否在运行中
/// 存在返回true，否则返回false
public static bool CheckProcessExists(string processName, string processFileName)
{
Process[] processes = Process.GetProcessesByName(processName);
foreach (Process p in processes)
{
if (!String.IsNullOrEmpty(processFileName))
{
if (processFileName == p.MainModule.FileName)
{
return true;
}
}
else
{
return true;
}
}
return false;
}
#endregion
#region 结束指定的windows进程
/// 读取App.config的辅助类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
namespace Mesnac.Basic
{
/// 返回对应配置项的string类型value值
public static string GetAppSettingValue(string appSettingKey, string defaultValue)
{
string result = ConfigurationManager.AppSettings[appSettingKey];
if (String.IsNullOrEmpty(result))
{
return defaultValue;
}
return result;
}
/// 返回对应配置项的bool类型value值
public static bool GetAppSettingValue(string appSettingKey, bool defaultValue)
{
string result = ConfigurationManager.AppSettings[appSettingKey];
if (String.IsNullOrEmpty(result))
{
return defaultValue;
}
bool boolResult = false;
if (bool.TryParse(result, out boolResult))
{
return boolResult;
}
else
{
return defaultValue;
}
}
/// 返回对应配置项的int类型value值
public static int GetAppSettingValue(string appSettingKey, int defaultValue)
{
string result = ConfigurationManager.AppSettings[appSettingKey];
if (String.IsNullOrEmpty(result))
{
return defaultValue;
}
int intResult = 0;
if (int.TryParse(result, out intResult))
{
return intResult;
}
else
{
return defaultValue;
}
}
/// 返回对应配置项的double类型value值
public static double GetAppSettingValue(string appSettingKey, double defaultValue)
{
string result = ConfigurationManager.AppSettings[appSettingKey];
if (String.IsNullOrEmpty(result))
{
return defaultValue;
}
double doubleResult = 0.0;
if (double.TryParse(result, out doubleResult))
{
return doubleResult;
}
else
{
return defaultValue;
}
}
}
}
日志框架封装代码
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.IO;
using log4net;
using log4net.Config;
namespace Mesnac.Log
{
/// 写一个启动influxd.exe的任务类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Mesnac.Log;
using Quartz;
namespace Mesnac.Jobs
{
public class StartInfluxDbServerJob : IJob
{
private string influxDbPath = @"D:\influxdb-1.4.3-1";
public void Execute(IJobExecutionContext context)
{
if (!Mesnac.Basic.WinCmdHelper.CheckProcessExists("influxd", String.Empty))
{
//System.Threading.Thread t = new System.Threading.Thread(new System.Threading.ThreadStart(this.DoStart));
//t.Start();
this.DoStart();
}
}
public void DoStart()
{
string cmd = String.Format("{0} -config {1}", System.IO.Path.Combine(this.influxDbPath, "influxd.exe"), System.IO.Path.Combine(this.influxDbPath, "influxdb.conf"));
bool result = Mesnac.Basic.WinCmdHelper.ExcuteDosCommand(cmd, false, false);
if (result)
{
LogService<StartInfluxDbServerJob>.Instance.Info("The InfluxDb Server start success!");
}
else
{
LogService<StartInfluxDbServerJob>.Instance.Error("The InfluxDb Server Start failure!");
}
}
}
}
写任务调度类
using System;
using System.Collections.Generic;
using System.Text;
using Mesnac.Log;
using Topshelf;
using Quartz;
using Quartz.Impl;
namespace InfluxDbService
{
public sealed class ServiceRunner : ServiceControl, ServiceSuspend
{
private readonly IScheduler scheduler; //定义任务调度器
/// 程序入口
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Topshelf;
using Topshelf.HostConfigurators;
namespace InfluxDbService
{
class Program
{
static void Main(string[] args)
{
Global.Init();
Action<HostConfigurator> d = new Action<HostConfigurator>(Global.ActionMethod);
HostFactory.Run(d);
}
}
}
完整代码下载：时序数据库InfluxDb服务化完整代码