C# 控制台HTTP侦听器访问JSON内容

我刚刚开始学习C#，对于我的第一个私人应用程序，我想通过创建一个非常简单的“端点”来测试到amazon Alexa的链接。（对不起，如果我把单词弄混了一点，我在术语方面有困难）

下面是我非常简单的Http侦听器：

static void Main(string[] args)
    {


        string baseAddress = "http://localhost:7775/";


        try
        {

            using (WebApp.Start<Startup>(url: baseAddress))
            {



                Console.ReadLine();
            }

        }
        catch (Exception ex)
        {

            Console.WriteLine("Error: " + ex.Message);
            Console.ReadLine();

        }


    }

结果是：

*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 7775 (#0)
> POST /api/values/5 HTTP/1.1
> Host: localhost:7775
> User-Agent: curl/7.54.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 227
>
* upload completely sent off: 227 out of 227 bytes
< HTTP/1.1 204 No Content
< Content-Length: 0
< Server: Microsoft-HTTPAPI/2.0
< Date: Wed, 26 Apr 2017 11:45:21 GMT
<
* Connection #0 to host localhost left intact

---

将请求更改为字符串，并返回json，这样我就可以使用它了，但我会将此保留为打开状态，非常感谢大家提供的任何建议。谢谢again@lzion您的请求类为空..您好loneshark99，感谢您的评论我认为问题在于从json字符串中删除引号导致服务器端出现解析错误。如果代码有效，将更新代码。

curl -v -k http://localhost:7775/api/values/5 --data-binary '{"version":"1.0","session":{"new":true,"sessionId":"session1234","application":{"applicationId":"amzn1.echo-sdk-ams.app.1234"},"attributes":{},"user":{"userId":null}},"request":{"type":"LaunchRequest","requestId":"request5678","timestamp":"2015-05-13T12:34:56Z"}}'

*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 7775 (#0)
> POST /api/values/5 HTTP/1.1
> Host: localhost:7775
> User-Agent: curl/7.54.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 227
>
* upload completely sent off: 227 out of 227 bytes
< HTTP/1.1 204 No Content
< Content-Length: 0
< Server: Microsoft-HTTPAPI/2.0
< Date: Wed, 26 Apr 2017 11:45:21 GMT
<
* Connection #0 to host localhost left intact

 public class Startup
{
    // This code configures Web API. The Startup class is specified as a type
    // parameter in the WebApp.Start method.
    public void Configuration(IAppBuilder appBuilder)
    {
        // Configure Web API for self-host. 
        HttpConfiguration config = new HttpConfiguration();
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

        appBuilder.UseWebApi(config);
    }
}