c# - ServiceStack 不会自动连接和注册 AppSettings

Question

ServiceStack (4.0.62) 不注册和自动连接 AppSettings 属性。我什至不知道如何调试这种情况，也许有人可以解释一下。

因此，我有基于 ServiceStack 的自托管控制台 Windows 应用程序(使用默认的 IoC Funq):

    public class AppHost : AppHostHttpListenerBase
    {
        public AppHost() : base("SomeServer", typeof (SomeService).Assembly)
        {
        }

        public override void Configure(Container container)
        {
            SetConfig(new HostConfig
            {
                DefaultContentType = MimeTypes.Json,
                DebugMode = true,
            });

            AppSettings = new DictionarySettings(new Dictionary<string, string>
            {
                { "Key1", "Value1" },
                { "Key2", "Value2" },
            });

            // Enable plugins
            Plugins.Add(...);
        }
    }

SomeService 的 AppSettings 属性根本没有初始化:

    public class SomeService : Service
    {
        public IAppSettings AppSettings { get; set; }

        public SomeResponse Get(SomeRequest request)
        {
            // Exception: AppSettings == null
            var someValue = AppSettings.Get<string>("Key1");

            // ...
        }
    }

怎么可能？怎么了？

Answer 1

ServiceStack 做 register the IAppSettings in Funq默认情况下。

我还在新的自托管控制台应用程序中使用您的示例验证了这一点:

public class AppHost : AppHostHttpListenerBase
{
    public AppHost() : base("SomeServer", typeof(SomeService).Assembly) {}
    public override void Configure(Container container)
    {
        SetConfig(new HostConfig {
            DefaultContentType = MimeTypes.Json,
            DebugMode = true,
        });

        AppSettings = new DictionarySettings(new Dictionary<string, string> {
            { "Key1", "Value1" },
            { "Key2", "Value2" },
        });
    }
}

[Route("/appsettings/{Key}")]
public class SomeRequest
{
    public string Key { get; set; }
}

public class SomeResponse
{
    public string Value { get; set; }
}

public class SomeService : Service
{
    public IAppSettings AppSettings { get; set; }

    public SomeResponse Get(SomeRequest request)
    {
        return new SomeResponse { Value = AppSettings.Get<string>(request.Key) };
    }
}

开始于:

class Program
{
    static void Main(string[] args)
    {
        new AppHost().Init().Start("http://*:8088/");
        "ServiceStack Self Host with Razor listening at http://127.0.0.1:8088".Print();
        Process.Start("http://127.0.0.1:8088/");

        Console.ReadLine();
    }
}

它按预期工作，即:

• http://127.0.0.1:8088/appsettings/Key1.json => {"Value":"Value1"}

检查 ?debug=requestinfo查看您是否有任何可能阻碍 AppHost 初始化的 StartUpErrors。