AddAutoMapper 不会加载 asp.net 核心中的所有程序集 [英] AddAutoMapper does not load all assemblies in asp.net core

问题描述

我有以下代码将自动映射器添加到我的应用程序中.

I have the following code that add automapper to my app.

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
    services.AddHttpClient();

    services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
}

AppDomain.CurrentDomain.GetAssemblies() 仅返回在调用时加载的程序集.我可以看到我的一些包含我的映射的程序集尚未加载，因此映射未加载，这会返回有关缺少映射类型的错误.

The AppDomain.CurrentDomain.GetAssemblies() returns only assemblies that were loaded at the time it is called. I can see that some of my assemblies which contain my mappings have not been yet loaded and as a result mappings are not loaded which returns me errors about missing map types.

如何获取我的项目引用的所有程序集?

How do I get all assemblies referenced by my project?

推荐答案

参考 - 来自 AutoMapper 官方文档

ASP.NET Core

有一个 NuGet 包可与此处描述了默认注入机制，并在这个项目.

There is a NuGet package to be used with the default injection mechanism described here and used in this project.

您使用配置文件定义配置.然后你让AutoMapper 知道由哪些程序集定义的配置文件调用 IServiceCollection 扩展方法 AddAutoMapper 在启动:

You define the configuration using profiles. And then you let AutoMapper know in what assemblies are those profiles defined by calling the IServiceCollection extension method AddAutoMapper at startup:

services.AddAutoMapper(profileAssembly1, profileAssembly2 /*, ...*/);

或标记类型:

services.AddAutoMapper(typeof(ProfileTypeFromAssembly1), typeof(ProfileTypeFromAssembly2) /*, ...*/);

现在您可以在运行时将 AutoMapper 注入您的服务/控制器:

Now you can inject AutoMapper at runtime into your services/controllers:

public class EmployeesController {
    private readonly IMapper _mapper;

    public EmployeesController(IMapper mapper) => _mapper = mapper;

    // use _mapper.Map or _mapper.ProjectTo
}

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