因此,我创建了一项在服务器上运行的服务,查看不同的文件夹共享,并将其放入数据库表中以进行自定义搜索,但是它拉入了搜索位置的数据表并一次遍历它们,这非常适合小测试文件夹。现在,我尝试将其实际使用,但在计时器重新启动它之前,它无法通过第一个文件夹路径。我可以延长时间,但是我基本上希望它能够持续运行并在第一个完成后立即重新开始,或者不确定是否可以同时运行所有路径。我让它每30分钟运行一次,但绝对不够长。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;
using System.Timers;
namespace MFTSearchService
{
public partial class MFTSearchService : ServiceBase
{
Timer timer = new Timer(); // name space(using System.Timers;)
public MFTSearchService()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
WriteToFile("Service is started at " + DateTime.Now);
timer.Elapsed += new ElapsedEventHandler(OnElapsedTime);
timer.Interval = TimeSpan.FromMinutes(10).TotalMilliseconds; //number in milisecinds
timer.Enabled = true;
//global::MFTSearchService.Search.SearchStart();
}
protected override void OnStop()
{
WriteToFile("Service is stopped at " + DateTime.Now);
}
private void OnElapsedTime(object source, ElapsedEventArgs e)
{
WriteToFile("Service is recall at " + DateTime.Now);
timer.Elapsed += new ElapsedEventHandler(OnElapsedTime);
timer.Interval = TimeSpan.FromMinutes(30).TotalMilliseconds; //number in milisecinds
timer.Enabled = true;
global::MFTSearchService.Search.SearchStart();
}
public void WriteToFile(string Message)
{
string path = AppDomain.CurrentDomain.BaseDirectory + "\\Logs";
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
string filepath = AppDomain.CurrentDomain.BaseDirectory + "\\Logs\\ServiceLog_" + DateTime.Now.Date.ToShortDateString().Replace('/', '_') + ".txt";
if (!File.Exists(filepath))
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(filepath))
{
sw.WriteLine(Message);
}
}
else
{
using (StreamWriter sw = File.AppendText(filepath))
{
sw.WriteLine(Message);
}
}
}
}
}
global::MFTSearchService.Search.SearchStart();
在您的计时器中,您可以添加BackgroundWorker并在您的计时器中启动它。对于计时器上的每个滴答声,您都可以检查Backgroundworker是否忙。如果您在运行前检查过,BackgroundWorker将不会运行。
private void OnElapsedTime(object source, ElapsedEventArgs e) { WriteToFile("Service is recall at " + DateTime.Now); timer.Elapsed += new ElapsedEventHandler(OnElapsedTime); timer.Interval = TimeSpan.FromMinutes(30).TotalMilliseconds; //number in milisecinds timer.Enabled = true; if (!backgroundWorker1.IsBusy()) { backgroundWorker1.RunWorkerAsync(); } } private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) { global::MFTSearchService.Search.SearchStart(); }
后台工作者不会锁定您的主线程,因此您的计时器将继续循环。因此,您可以随意设置任何间隔。