AspectCore.Extensions.Hosting.NAutowired 3.1.1

AspectCore-NAutowired

An extension library to integrate NAutowired and AspectCore framework into Asp.NET Core DI system.

一个基于AspectCore.DependencyInjection的扩展库，使NAutowired可以和AspectCore一起使用。 这样被代理的原始服务仍可以正常使用[Autowired]实现属性注入。

安装

Install-Package AspectCore.Extensions.DependencyInjection.NAutowired

示例

鉴于AspectCore文档较老，这里示例一下如何在.NET Core 5.0中使用AspectCore。

基于特性拦截

//Intercepter
public class DefaultInterceptorAttribute : AbstractInterceptorAttribute
{
    public async override Task Invoke(AspectContext context, AspectDelegate next)
    {
        Console.WriteLine("before service call");
        await next(context);
        Console.WriteLine("after service call");
    }
}

//Service
public interface IFooService
{
    [DefaultInterceptor]
    public string GetText();
}

public class FooService : IFooService
{
    [Autowired]
    private readonly IDAL dal;

    public string GetText()
    {
        return dal != null ? "Success" : "Fail";
    }
}

//Program.cs
public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        //省略其它
        //启用AspectCore
        .UseServiceProviderFactory(new DynamicProxyServiceProviderFactory());

全局拦截

//Intercepter
public class DefaultInterceptorAttribute : AbstractInterceptorAttribute
{
    public async override Task Invoke(AspectContext context, AspectDelegate next)
    {
        Console.WriteLine("before service call");
        await next(context);
        Console.WriteLine("after service call");
    }
}

//Service
public interface IFooService
{
    public string GetText();
}

public class FooService : IFooService
{
    [Autowired]
    private readonly IDAL dal;

    public string GetText()
    {
        return dal != null ? "Success" : "Fail";
    }
}

//Program.cs
public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        //省略其它
        .UseServiceProviderFactory(new DynamicProxyServiceProviderFactory());

//Startup.cs
public void ConfigureServices(IServiceCollection services)
{
    services.ConfigureDynamicProxy(config => {
        //拦截所有Execure开头的方法
        config.Interceptors.AddTyped<DefaultInterceptorAttribute>(Predicates.ForMethod("Execute*"));

        //拦截所有Service结尾的服务内的方法
        config.Interceptors.AddTyped<CustomInterceptorAttribute>(Predicates.ForService("*Service"));

        //App1命名空间下的Service不会被代理
        config.NonAspectPredicates.AddNamespace("App1");

        //最后一级为App1的命名空间下的Service不会被代理
        config.NonAspectPredicates.AddNamespace("*.App1");

        //ICustomService接口不会被代理
        config.NonAspectPredicates.AddService("ICustomService");

        //后缀为Svc的接口和类不会被代理
        config.NonAspectPredicates.AddService("*Svc");

        //命名为Query的方法不会被代理
        config.NonAspectPredicates.AddMethod("Query");

        //后缀为Query的方法不会被代理
        config.NonAspectPredicates.AddMethod("*Query");
    });
}

完整示例

请参看TestConsoleApp示例项目。