asp.net-web-api - SelfHosted AspNet WebAPI 与不同项目中的 Controller 类

Question

我使用 Visual Studio 2012 (.NET Framework 4.5) 创建了一个 SelfHosted AspNet WebAPI。我为 WebAPI 启用了 SSL。当 Controller 在同一个项目中定义时，它可以正常工作。

但是当我添加另一个包含 Controller 的项目的引用时，它给出了以下错误:

No HTTP resource was found that matches the request URI 'https://xxx.xxx.xxx.xxx:xxxx/hellowebapi/tests/'.

我已经为 HttpSelfHostConfiguration 和 MessageHandler 创建了自定义类。

解决这个问题的任何帮助对我来说都是一个很好的时间享受。

提前致谢。

Answer 1

您可以编写一个简单的自定义程序集解析器，以确保加载引用的程序集以使 Controller 探测正常工作。

以下是 Filip 就此事发表的一篇精彩帖子:
http://www.strathweb.com/2012/06/using-controllers-from-an-external-assembly-in-asp-net-web-api/

示例:

class Program
{
    static HttpSelfHostServer CreateHost(string address)
    {
        // Create normal config
        HttpSelfHostConfiguration config = new HttpSelfHostConfiguration(address);

        // Set our own assembly resolver where we add the assemblies we need
        CustomAssembliesResolver assemblyResolver = new CustomAssembliesResolver();
        config.Services.Replace(typeof(IAssembliesResolver), assemblyResolver);

        // Add a route
        config.Routes.MapHttpRoute(
          name: "default",
          routeTemplate: "api/{controller}/{id}",
          defaults: new { controller = "Home", id = RouteParameter.Optional });

        HttpSelfHostServer server = new HttpSelfHostServer(config);
        server.OpenAsync().Wait();

        Console.WriteLine("Listening on " + address);
        return server;
    }

    static void Main(string[] args)
    {
        // Create and open our host
        HttpSelfHostServer server = CreateHost("http://localhost:8080");

        Console.WriteLine("Hit ENTER to exit...");
        Console.ReadLine();
    }
}

public class CustomAssembliesResolver : DefaultAssembliesResolver
{
    public override ICollection<Assembly> GetAssemblies()
    {
        ICollection<Assembly> baseAssemblies = base.GetAssemblies();

        List<Assembly> assemblies = new List<Assembly>(baseAssemblies);

        var controllersAssembly = Assembly.LoadFrom(@"C:\libs\controllers\ControllersLibrary.dll");

        baseAssemblies.Add(controllersAssembly);

        return assemblies;
    }
}