取消或删除预定作业 - HangFire

Question

我已经通过使用 Hangfire 库安排了一个工作。我预定的代码如下。

BackgroundJob.Schedule(() => MyRepository.SomeMethod(2),TimeSpan.FromDays(7));

public static bool DownGradeUserPlan(int userId)
    {
        //Write logic here
    }

现在我想稍后在某些事件中删除此计划作业。

Answer 1

BackgroundJob.Schedule returns 你是那个职位的id，你可以用它来删除这个职位：

var jobId = BackgroundJob.Schedule(() =>  MyRepository.SomeMethod(2),TimeSpan.FromDays(7));

BackgroundJob.Delete(jobId);

Answer 2

您无需保存他们的 ID 即可在以后检索工作。相反，您可以利用 Hangfire API 的 MonitoringApi class。请注意，您需要根据需要筛选职位。

Text 是我在示例代码中自定义的 class。

public void ProcessInBackground(Text text)
{
    // Some code
}

public void SomeMethod(Text text)
{
    // Some code

    // Delete existing jobs before adding a new one
    DeleteExistingJobs(text.TextId);

    BackgroundJob.Enqueue(() => ProcessInBackground(text));
}

private void DeleteExistingJobs(int textId)
{
    var monitor = JobStorage.Current.GetMonitoringApi();

    var jobsProcessing = monitor.ProcessingJobs(0, int.MaxValue)
        .Where(x => x.Value.Job.Method.Name == "ProcessInBackground");
    foreach (var j in jobsProcessing)
    {
        var t = (Text)j.Value.Job.Args[0];
        if (t.TextId == textId)
        {
            BackgroundJob.Delete(j.Key);
        }
    }

    var jobsScheduled = monitor.ScheduledJobs(0, int.MaxValue)
        .Where(x => x.Value.Job.Method.Name == "ProcessInBackground");
    foreach (var j in jobsScheduled)
    {
        var t = (Text)j.Value.Job.Args[0];
        if (t.TextId == textId)
        {
            BackgroundJob.Delete(j.Key);
        }
    }
}

我的参考：https://discuss.hangfire.io/t/cancel-a-running-job/603/10

取消或删除预定作业 - HangFire

Cancel or Delete Scheduled Job - HangFire

c#

asp.net

job-scheduling

hangfire