Background Jobs 调用接口时间长解决

1. 编写工作类

public class UTaskEventHanlder : BackgroundJob<UpByTermIdInput>, ITransientDependency
    {
        private readonly IRepository<EvaluationSystem.EntityDesign.ClassManage, Guid> _classManageRepository;
        private readonly ICacheManager _cacheManager;
    
        private readonly IBackgroundJobManager _backgroundJobManager;

        public UTaskEventHanlder(IRepository<EvaluationSystem.EntityDesign.ClassManage, Guid> classManageRepository,
            ICacheManager cacheManager,
            IBackgroundJobManager backgroundJobManager)
        {
            _backgroundJobManager = backgroundJobManager;
            _cacheManager = cacheManager;
            _classManageRepository = classManageRepository;
        }

        [UnitOfWork]
        public override void Execute(UpByTermIdInput input)
        {
            try
            {
                UnitOfWorkManager.Current.SetTenantId(1);
                //查找任务删除 保证执行一次  
                var ts = _cacheManager.GetCache("_AutoUpClass_" + input.TaskId).GetOrDefault("_AutoUpClass_" + input.TaskId);
                if (ts != null)
                {
                    var d= (UpByTermIdTaskInfo)ts;
                    _backgroundJobManager.Delete(d.JobId);
                }
                   
               //......省略代码
                
                    _cacheManager.GetCache("_AutoUpClass_" + input.gId).Set("_AutoUpClass_" + input.gId, new UpByTermIdTaskInfo { Status = 0, Msg = "执行中", TaskId = input.gId, Progress = $"{1}/{3}" });
                    
                  //......省略代码
                _cacheManager.GetCache("_AutoUpClass_" + input.gId).Set("_AutoUpClass_" + input.gId, new UpByTermIdTaskInfo { Status = 1, Msg = "成功", TaskId = input.gId, Progress = $"{3}/{3}" });
               
                CurrentUnitOfWork.SaveChanges();
            }
            catch (Exception e)
            {

                _cacheManager.GetCache("_AutoUpClass_" + input.gId).Set("_AutoUpClass_" + input.gId, new UpByTermIdTaskInfo { Status = 2, Msg = "失败", TaskId = input.gId});
            }
           
        }
    }

2. 调用

    public async Task<UpByTermIdTaskInfo> AutoUpClassTestAsync(UpByTermIdInput input)
           {
               if (!string.IsNullOrEmpty(input.TaskId))
               {
                   //查询状态
                   var ts = _cacheManager.GetCache("_AutoUpClass_" + input.TaskId).GetOrDefault("_AutoUpClass_" + input.TaskId);
                   if (ts != null)
                       return (UpByTermIdTaskInfo)ts;
                   else
                       return new UpByTermIdTaskInfo { Status = 2, TaskId = input.TaskId, Msg = "失败" };
               }
               else
               {
                   //首次
                   string g = Guid.NewGuid().ToString();
                  
                  var a=await  _backgroundJobManager.EnqueueAsync<UTaskEventHanlder, UpByTermIdInput>(
                      new UpByTermIdInput { oldTermId=input.oldTermId,newTermId=input.newTermId,schoolId=input.schoolId,TaskId= g, gId=g});
                
   
   
              //设置查询
              var taskInfo = new UpByTermIdTaskInfo { Status = 0, Msg = "执行中", TaskId = g,JobId=a };
                   _cacheManager.GetCache("_AutoUpClass_" + g).Set("_AutoUpClass_" + g, taskInfo, TimeSpan.FromMinutes(10));
                   return taskInfo;
               }
           }
   

注：执行不完一直执行 容易多次执行 慎重使用
引用https://aspnetboilerplate.com/Pages/Documents/Background-Jobs-And-Workers#background-jobs
及https://www.cnblogs.com/wangyinlon/p/15160497.html