我需要在后台执行任务,所以我的任务是什么?我有一个表来存储每个客户的租金金额,因此我需要计算特定datetime ackf之后每个月的租金价格,因此我在Google上进行了搜索,发现了一段我添加的代码(它是nuget,称为webbackgrounder)它到我的解决方案中,它为我提供了这部分代码来处理我的任务:

using System;
using System.Threading;
using System.Threading.Tasks;

    namespace WebBackgrounder.DemoWeb
    {
        public class SampleJob : Job
        {
            public SampleJob(TimeSpan interval, TimeSpan timeout)
                : base("Sample Job", interval, timeout)
            {
            }

            public override Task Execute()
            {
                return new Task(() => Thread.Sleep(3000));
            }
        }
    }

我想知道如何编程我的任务?

更多详细信息:Here

我找到了this article,但实际上我不知道我可以长时间使用此方法吗?
此致 。

任何想法将不胜感激。

最佳答案

您还需要在应用程序的App_Start文件夹中添加一个类,该类将启动Job并管理其生命周期。您可以在此处查看示例... https://github.com/NuGet/WebBackgrounder/tree/master/src/WebBackgrounder.DemoWeb

这是演示应用程序中的代码

using System;
using Elmah;
using WebBackgrounder.Jobs;

[assembly: WebActivator.PostApplicationStartMethod(typeof(WebBackgrounder.DemoWeb.App_Start.WebBackgrounderSetup), "Start")]
[assembly: WebActivator.ApplicationShutdownMethod(typeof(WebBackgrounder.DemoWeb.App_Start.WebBackgrounderSetup), "Shutdown")]

namespace WebBackgrounder.DemoWeb.App_Start
{
    public static class WebBackgrounderSetup
    {
        static readonly JobManager _jobManager = CreateJobWorkersManager();

        public static void Start()
        {
            _jobManager.Start();
        }

        public static void Shutdown()
        {
            _jobManager.Dispose();
        }

        private static JobManager CreateJobWorkersManager()
        {
            var jobs = new IJob[]
            {
                new SampleJob(TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(20)),
                /* new ExceptionJob(TimeSpan.FromSeconds(15)), */
                new WorkItemCleanupJob(TimeSpan.FromMinutes(1), TimeSpan.FromMinutes(5), new WorkItemsContext())
            };

            var coordinator = new WebFarmJobCoordinator(new EntityWorkItemRepository(() => new WorkItemsContext()));
            var manager = new JobManager(jobs, coordinator);
            manager.Fail(ex => Elmah.ErrorLog.GetDefault(null).Log(new Error(ex)));
            return manager;
        }
    }
}

但是,我发现仅使用Webbackgrounder所需的部分变得更加简单,如下所示。将此类放在App_Start文件夹中
using System;
using BombaySapphireCds.Jobs;
using Elmah;

[assembly: WebActivator.PostApplicationStartMethod(typeof(BombaySapphireCds.App_Start.PodMonitorConfig), "Start")]
[assembly: WebActivator.ApplicationShutdownMethod(typeof(BombaySapphireCds.App_Start.PodMonitorConfig), "Shutdown")]

namespace BombaySapphireCds.App_Start
{
    public static class PodMonitorConfig
    {
        private static PodMonitorJob m_job;

        public static void Start()
        {
            m_job = new PodMonitorJob(TimeSpan.FromSeconds(20));
        }

        public static void Shutdown()
        {
            m_job.Dispose();
        }
    }
}

和类(class)做实际的工作...(把它放在你喜欢的任何地方)
using System;
using System.Threading;
using System.Threading.Tasks;

namespace BombaySapphireCds.Jobs
{
    public class PodMonitorJob : IDisposable
    {
        private CancellationTokenSource m_cancel;
        private Task m_task;
        private TimeSpan m_interval;
        private bool m_running;

        public PodMonitorJob(TimeSpan interval)
        {
            m_interval = interval;
            m_running = true;
            m_cancel = new CancellationTokenSource();
            m_task = Task.Run(() => TaskLoop(), m_cancel.Token);
        }

        private void TaskLoop()
        {
            while (m_running)
            {
                //
                // Do monitoring work here.
                //

                Thread.Sleep(m_interval);
            }
        }

        public void Dispose()
        {
            m_running = false;

            if (m_cancel != null)
            {
                try
                {
                    m_cancel.Cancel();
                    m_cancel.Dispose();
                }
                catch
                {
                }
                finally
                {
                    m_cancel = null;
                }
            }
        }
    }
}

关于c# - 在MVC中使用webbackgrounder nuget长时间运行后台任务,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/25930032/

10-13 01:22