如何每n分钟运行一次任务
如何每n分钟运行一次任务
提问于 2018-08-06 05:46:14
我写了一个代码来更新DDNS，它工作得很好。我现在需要每隔n分钟运行一次这段代码:我该怎么做呢？
我尝试使用：
while (true)
{
this.DoMyMethod();
Thread.Sleep(TimeSpan.FromMinutes(1));
}我还是遇到了一些麻烦。每隔n分钟运行此任务的最佳方式是什么？
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Windows.Forms;
using System.Timers;
namespace GoogleDDNS
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
if (username.Text == "")
{
System.Windows.MessageBox.Show("Please enter the username");
username.Focus();
return;
}
if (password.Text == "")
{
System.Windows.MessageBox.Show("Please enter the password");
password.Focus();
return;
}
if (subdomain.Text == "")
{
System.Windows.MessageBox.Show("Please enter the subdomain");
subdomain.Focus();
return;
}
var client = new WebClient { Credentials = new NetworkCredential(username.Text, password.Text) };
var response = client.DownloadString("https://domains.google.com/nic/update?hostname=" + subdomain.Text);
responseddns.Content = response;
Properties.Settings.Default.usernamesave = username.Text;
Properties.Settings.Default.passwordsave = password.Text;
Properties.Settings.Default.subdomainsave = subdomain.Text;
Properties.Settings.Default.Save();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
username.Text = Properties.Settings.Default.usernamesave;
password.Text = Properties.Settings.Default.passwordsave;
subdomain.Text = Properties.Settings.Default.subdomainsave;
}
}
}回答 5
Stack Overflow用户
发布于 2018-08-06 06:16:38
为什么不使用System.Threading.Timer来实现呢？
在Microsoft documentation中，假设您有以下示例类：
class StatusChecker
{
private int invokeCount;
private int maxCount;
public StatusChecker(int count)
{
invokeCount = 0;
maxCount = count;
}
// This method is called by the timer delegate.
public void CheckStatus(Object stateInfo)
{
AutoResetEvent autoEvent = (AutoResetEvent)stateInfo;
Console.WriteLine("{0} Checking status {1,2}.",
DateTime.Now.ToString("h:mm:ss.fff"),
(++invokeCount).ToString());
if (invokeCount == maxCount)
{
// Reset the counter and signal the waiting thread.
invokeCount = 0;
autoEvent.Set();
}
}
}然后，您可以创建一个Timer来每隔n秒运行一次CheckStatus，如下所示：
// Create an AutoResetEvent to signal the timeout threshold in the
// timer callback has been reached.
var autoEvent = new AutoResetEvent(false);
var statusChecker = new StatusChecker(5);
// creates a Timer to call CheckStatus() with autoEvent as argument,
// starting with 1 second delay and calling every 2 seconds.
var stateTimer = new Timer(statusChecker.CheckStatus, autoEvent, 1000, 2000);
autoEvent.WaitOne();Stack Overflow用户
发布于 2018-08-06 05:56:46
看看这个。我记得一位同事刚才用过它：
FluentScheduler - [Project Site]
用法：
// Schedule an IJob to run at an interval
Schedule<MyJob>().ToRunNow().AndEvery(2).Minutes();会满足你的需求。
Stack Overflow用户
发布于 2018-08-06 11:35:06
我用计时器，代码是
using System;
using System.Net;
using System.Timers;
static void Main(string[] args)
{
Console.WriteLine("The system is start at {0}", DateTime.Now);
Timer t = new Timer(10000);
t.Enabled = true;
t.Elapsed += T_Elapsed;
Console.ReadKey();
}
private static void T_Elapsed(object sender, ElapsedEventArgs e)
{
//write your code
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51698490
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