WCP.Service 8.0.0

dotnet add package WCP.Service --version 8.0.0
                    
NuGet\Install-Package WCP.Service -Version 8.0.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="WCP.Service" Version="8.0.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="WCP.Service" Version="8.0.0" />
                    
Directory.Packages.props
<PackageReference Include="WCP.Service" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add WCP.Service --version 8.0.0
                    
#r "nuget: WCP.Service, 8.0.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package WCP.Service@8.0.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=WCP.Service&version=8.0.0
                    
Install as a Cake Addin
#tool nuget:?package=WCP.Service&version=8.0.0
                    
Install as a Cake Tool

WCP.Service

WCP.Service 提供了一套基于“标记接口 + 约定自动注册”的依赖注入辅助组件,用于在 ASP.NET Core 中简化服务层的注册工作。

通过定义服务接口继承不同生命周期的标记接口(ITransientDependency、IScopedDependency、ISingletonDependency),并在启动时调用一次 AddAutoService,即可自动将实现类批量注册到 DI 容器中。

  • Target Framework: net8.0
  • License: Apache-2.0
  • 作者 / Author: 吴存平

安装 (Install)

在 NuGet 中搜索并安装:

  • 包名:WCP.Service

使用 .NET CLI:

dotnet add package WCP.Service

使用 Package Manager:

Install-Package WCP.Service

PackageReference 示例:

<ItemGroup>
  <PackageReference Include="WCP.Service" Version="8.0.0" />
</ItemGroup>

核心概念 (Core Concepts)

命名空间:WCP.Service

标记接口:

  • IDependency:所有可被自动注入的服务接口的基础标记接口;
  • ITransientDependency:标记为瞬时 (Transient) 生命周期的服务接口;
  • IScopedDependency:标记为作用域 (Scoped) 生命周期的服务接口;
  • ISingletonDependency:标记为单例 (Singleton) 生命周期的服务接口。

扩展方法:

  • ServiceExtensions.AddAutoService(this IServiceCollection services, params Type[] ignoreTypes)
  • ServiceExtensions.AddAutoService(this IServiceCollection services, bool debug, params Type[] ignoreTypes)

AddAutoService 会扫描当前 AppDomain 所有类型:

  • 找出实现了 IDependency 的接口和实现类;
  • 根据接口继承的是哪种生命周期标记接口,选择 AddTransient / AddScoped / AddSingleton 注册。

快速开始 (Quick Start)

1. 定义服务接口与实现类

using WCP.Service;

// 定义一个作用域生命周期的服务接口
public interface IUserService : IScopedDependency
{
    string GetUserName(int id);
}

// 实现类无需实现标记接口,只需实现业务接口
public class UserService : IUserService
{
    public string GetUserName(int id)
    {
        return $"User-{id}";
    }
}

2. 在 Program.cs 中自动注册

using WCP.Service;

var builder = WebApplication.CreateBuilder(args);

// 自动扫描并注册所有 IDependency 派生接口
builder.Services.AddAutoService(debug: false /* 或 true 查看扫描日志 */);

var app = builder.Build();

app.Run();

此时,你可以在控制器或其他服务中直接通过构造函数注入 IUserService:

public class HomeController : Controller
{
    private readonly IUserService _userService;

    public HomeController(IUserService userService)
    {
        _userService = userService;
    }
}

忽略特定接口 (Ignore Types)

如果你有某些公共接口不希望被自动注册,可以通过 ignoreTypes 参数排除:

builder.Services.AddAutoService(
    debug: true,
    ignoreTypes: new[] { typeof(IMyMarkerInterface) }
);

工作原理简述 (How It Works)

  1. AddAutoService 扫描当前 AppDomain 中所有类型;
  2. 找出所有实现了 IDependency 的接口和类;
  3. 将接口与实现类两两匹配:
    • 如果接口继承自 IScopedDependency,则 AddScoped(interface, implement);
    • 如果继承自 ISingletonDependency,则 AddSingleton(interface, implement);
    • 如果继承自 ITransientDependency,则 AddTransient(interface, implement);
  4. 可选输出调试信息,帮助你查看自动注册的接口/实现类。

注意事项 (Notes)

  • 建议将“服务接口”与“实现类”放在同一个程序集或同一个解决方案下的多个程序集,确保能被当前应用程序域扫描到;
  • 对于生命周期敏感的服务(如使用 DbContext / HttpClient 等),请选择合适的标记接口;
  • AddAutoService 会对所有实现 IDependency 的接口生效,请避免让“公共基础接口”直接继承 IDependency,否则可能产生意外的自动注册行为。

License

本项目使用 Apache-2.0 许可证。详情请参阅 NuGet 包或源码中的 LICENSE 说明。

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

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Version Downloads Last Updated
8.0.0 202 11/28/2025
1.0.1 541 7/19/2021
1.0.0 477 7/19/2021