EasilyNET.AutoDependencyInjection 3.24.1107.140

dotnet add package EasilyNET.AutoDependencyInjection --version 3.24.1107.140                
NuGet\Install-Package EasilyNET.AutoDependencyInjection -Version 3.24.1107.140                
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="EasilyNET.AutoDependencyInjection" Version="3.24.1107.140" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add EasilyNET.AutoDependencyInjection --version 3.24.1107.140                
#r "nuget: EasilyNET.AutoDependencyInjection, 3.24.1107.140"                
#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.
// Install EasilyNET.AutoDependencyInjection as a Cake Addin
#addin nuget:?package=EasilyNET.AutoDependencyInjection&version=3.24.1107.140

// Install EasilyNET.AutoDependencyInjection as a Cake Tool
#tool nuget:?package=EasilyNET.AutoDependencyInjection&version=3.24.1107.140                
EasilyNET.AutoDependencyInjection
  • 新增KeyedService支持,可在 DependencyInjectionAttribute 中看到对应的 ServiceKey 属性,用于标识服务的 Key 值.
  • 新增 WPF 项目支持,理论上也支持 WinForm 项目,但是没有测试,使用时请注意.(仅限于 .NET 的项目,不支持 .NET Framework)
  • 经测试是支持 WinUI 3 类型的项目的,但是需要注意的是,WinUI 3 项目的启动方式和 WPF 项目不一样,需要自行调整.
中断性变更
  • 移除使用 IScopedDependency, ISingletonDependency, ITransientDependency 接口的方式,仅使用特性注入的方式.保持设计简洁性.
变化

由于新增了 WPF 项目支持,所以在使用时需要注意以下几点: WPF 项目中,使用依赖注入,需要在 App.xaml.cs 中添加如下代码:

[STAThread]
public static void Main(string[] args)
{
    using var host = CreateHostBuilder(args).Build();
    host.InitializeApplication();
    host.Start();
    var app = new App();
    app.InitializeComponent();
    app.MainWindow = host.Services.GetRequiredService<MainWindow>();
    app.MainWindow.Visibility = Visibility.Visible;
    app.Run();
}

private static IHostBuilder CreateHostBuilder(string[] args)
{
    return Host.CreateDefaultBuilder(args)
               .ConfigureServices(sc => { sc.AddApplicationModules<AppServiceModules>(); });
}

同时还需要调整 .csproj 文件,添加如下代码:

<ItemGroup>
	<ApplicationDefinition Remove="App.xaml" />
	<Page Include="App.xaml" />
</ItemGroup>

再在 WPF 项目中,使用依赖注入,需要在 AppServiceModules.cs 中添加如下代码: 该类的使用方法和 Web 项目中的 AppWebModule.cs 一样.

[DependsOn(typeof(DependencyAppModule))]
internal sealed class AppServiceModules : AppModule { }

在 WPF 项目中,使用依赖注入,需要在 MainWindow.xaml.cs 中继承接口或者添加 DependencyInjection 特性如下代码:

// 使用特性配置注入信息
[DependencyInjection(ServiceLifetime.Singleton, AddSelf = true, SelfOnly = true)]
public partial class MainWindow : Window

注意事项
  • 需要注意的是,在 WPF 项目中,请将 AddSelf 属性设置为 true,否则会出现服务无法找到的问题,因为默认会注册实现类的父类,导致使用 host.Services.GetRequiredService<MainWindow>() 的方式无法找到服务.WinForm 项目中,没有测试,但是理论上也是一样的.
  • 由于新增 WPF 项目支持,所以调整了 IApplicationBuilder 为 IHost,因此 WEB 项目中的使用方式有细微的变化.
// 之前的使用方式
IApplicationBuilder app = context.GetApplicationBuilder();
// 现在的使用方式
IApplicationBuilder app = context.GetApplicationHost() as IApplicationBuilder;
// 或者如下方式,根据实际情况选择
WebApplication app = context.GetApplicationHost() as WebApplication;
// 在 WPF 或者 WinForm 项目中,使用如下方式
IHost app = context.GetApplicationHost();
如何使用
  • 使用 Nuget 包管理工具添加依赖包 EasilyNET.AutoDependencyInjection
  • 使用特性注入服务
[DependencyInjection(ServiceLifetime.Singleton, AddSelf = true, SelfOnly = true)]
public class XXXService : IXXXService
{
    // TODO: do something
    Console.WriteLine("使用特性注入服务");
    ...
}
  • 3.继承 AppModule 类,然后显示加入到 AppWebModule 配置中
  • Step1.创建 CorsModule.cs
// 这里以跨域服务注册为例
/// <summary>
/// 配置跨域服务及中间件
/// </summary>
public class CorsModule : AppModule
{
    /// <summary>
    /// 注册和配置服务
    /// </summary>
    /// <param name="context"></param>
    public override void ConfigureServices(ConfigureServicesContext context)
    {
        var config = context.Services.GetConfiguration();
        var allow = config["AllowedHosts"] ?? "*";
        _ = context.Services.AddCors(c => c.AddPolicy("AllowedHosts", s => s.WithOrigins(allow.Split(",")).AllowAnyMethod().AllowAnyHeader()));
    }
    /// <summary>
    /// 注册中间件
    /// </summary>
    /// <param name="context"></param>
    public override void ApplicationInitialization(ApplicationContext context)
    {
        var app = context.GetApplicationBuilder() as IApplicationBuilder;
        _ = app.UseCors("AllowedHosts");
    }
}
  • Step2.创建 AppWebModule.cs
/**
 * 要实现自动注入,一定要在这个地方添加
 */
[DependsOn(
    typeof(DependencyAppModule),
    typeof(CorsModule)
)]
public class AppWebModule : AppModule
{
    /// <summary>
    /// 注册和配置服务
    /// </summary>
    /// <param name="context"></param>
    public override void ConfigureServices(ConfigureServicesContext context)
    {
        base.ConfigureServices(context);
        _ = context.Services.AddHttpContextAccessor();
    }
    /// <summary>
    /// 注册中间件
    /// </summary>
    /// <param name="context"></param>
    public override void ApplicationInitialization(ApplicationContext context)
    {
        base.ApplicationInitialization(context);
        var app = context.GetApplicationBuilder() as IApplicationBuilder;
        _ = app.UseAuthorization();
        // 这里可添加自己的中间件
    }
}
  • Step3.最后再 Program.cs 中添加如下内容.
// Add services to the container.
// 自动注入服务模块
builder.Services.AddApplication<AppWebModule>();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment()) _ = app.UseDeveloperExceptionPage();

// 添加自动化注入的一些中间件.
app.InitializeApplication();

app.MapControllers();

app.Run();
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 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

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