使用默认的ASP.NET Core DI容器在Service Fabric上设置依赖项注入

问题描述

我想使用ASP.NET Core的默认DI容器为Service Fabric项目设置DI。

I would like to use ASP.NET Core's default DI container to setup DI for my Service Fabric project.

//This is what I've got so far, and it works great
ServiceRuntime.RegisterServiceAsync(
  "MyServiceType",
  context => new MyService(context, new MyMonitor()
).GetAwaiter().GetResult();

//This is how I use it
public MyService(StatefulServiceContext context, IMonitor myMonitor)
  : base(context)
{
  this._myMonitor = myMonitor;           
}

如果 MyMonitor 类对 ConfigProvider 类具有依赖性，则设置DI，例如：

How would I set up DI, if MyMonitor class has a dependency on a ConfigProvider class, like this:

public MyMonitor(IConfigProvider configProvider)
{
  this._configProvider = configProvider;
}

推荐答案

我认为这个问题会给您一些启示：

I think this question will give you some light: Why does ServiceRuntime.RegisterServiceAsync return before the serviceFactory func completes?

从技术上讲， ServiceRuntime.RegisterServiceAsync（）是依赖项注册，它要求您传递serviceTypeName和负责创建服务的工厂方法。 < StatelessServiceContext，StatelessService> serviceFactory

Technically, the ServiceRuntime.RegisterServiceAsync() is a dependency registration, it requires you to pass the serviceTypeName and the factory method responsible for creating the services Func<StatelessServiceContext, StatelessService> serviceFactory

工厂方法接收上下文并返回服务（有状态或无状态）。

The factory method receives the context and returns a service (Stateful or stateless).

对于DI，您应该提前注册所有依赖项并调用resolve服务来创建构造函数，例如：

For DI, you should register all dependencies in advance and call resolve services to create the constructor, something like:

var provider = new ServiceCollection()
            .AddLogging()
            .AddSingleton<IFooService, FooService>()
            .AddSingleton<IMonitor, MyMonitor>()
            .BuildServiceProvider();

ServiceRuntime.RegisterServiceAsync("MyServiceType",
    context => new MyService(context, provider.GetService<IMonitor>());
}).GetAwaiter().GetResult();

PS：

这篇关于使用默认的ASP.NET Core DI容器在Service Fabric上设置依赖项注入的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！