Azure WebJob并从Microsoft.Extensions.DependencyInjection连接IServiceCollecton

Question

我试图弄清楚如何使用ServiceCollectionfrom 在Azure WebJob中进行依赖注入Microsoft.Extensions.DependencyInjection

例如:

services.AddTransient<IAdminUserLogsService, AdminUserLogsService>();

我无法弄清楚如何将此服务集合连接到WebJobs JobHostConfiguration.JobActivator可以理解的内容

我的目的是按照默认的AspNet核心Startup.cs方式重新使用我使用此方法设置的默认服务接线.

Answer 1

昨晚搜索后仍然找不到多少.

但经过一番摆弄后,我设法得到了以下内容:

编辑:我添加了一个更完整的实体框架解决方案.我应该注意到我的ASP.Net Core webapp是基于4.6.2而不是纯核心构建的.

using System;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Host;
using Microsoft.Azure.WebJobs.ServiceBus;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.EntityFrameworkCore;

namespace Settlements.WebJob
{
 public class ServiceJobActivator : IJobActivator
 {
  IServiceProvider _serviceProvider;

  public ServiceJobActivator(IServiceCollection serviceCollection) : base()
  {
    _serviceProvider = serviceCollection.BuildServiceProvider();
  }

  public T CreateInstance<T>()
  {
    return _serviceProvider.GetRequiredService<T>();
  }
 }   


class Program
{        
 static void Main()
 {  
   var config = new JobHostConfiguration();

   var dbConnectionString = Properties.Settings.Default.DefaultConnection;

   var serviceCollection = new ServiceCollection();

   // wire up your services    
   serviceCollection.AddTransient<IThing, Thing>(); 

   // important! wire up your actual jobs, too
   serviceCollection.AddTransient<ServiceBusJobListener>();

   // added example to connect EF
   serviceCollection.AddDbContext<DbContext>(options =>
      options.UseSqlServer(dbConnectionString ));


   // add it to a JobHostConfiguration
   config.JobActivator = new ServiceJobActivator(serviceCollection);

   var host = new JobHost(config);

   host.RunAndBlock();
   }
 }

}