hangfire 實現已完成的job設置過時，防止數據無限增加

一、添加SucceededStateExpireHandler 繼承接口 IStateHandler
  public class SucceededStateExpireHandler : IStateHandler
    {
        public TimeSpan JobExpirationTimeout;
        public SucceededStateExpireHandler(int jobExpirationTimeout)
        {
            JobExpirationTimeout = TimeSpan.FromMinutes(jobExpirationTimeout);
        }

        public string StateName => SucceededState.StateName;

        public void Apply(ApplyStateContext context, IWriteOnlyTransaction transaction)
        {
            context.JobExpirationTimeout = JobExpirationTimeout;
        }

        public void Unapply(ApplyStateContext context, IWriteOnlyTransaction transaction)
        {

        }
    }

二、

public IServiceProvider ConfigureServices(IServiceCollection services)
{
..........................
GlobalStateHandlers.Handlers.Add(new SucceededStateExpireHandler(int.Parse(Configuration["Hangfire:JobExpirationTimeout"])));

}

 

 

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