转：winform_webApiSelfHost及 OWIN WebAPI Service

winform_webApiSelfHost

窗本构造函数中添加以下代码：

var baseAddress = ConfigurationManager.AppSettings["baseAddress"];
            var config = new HttpSelfHostConfiguration(baseAddress);
            config.Formatters.JsonFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/html"));
            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{action}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
            var cors = new EnableCorsAttribute("*", "*", "*");
            config.EnableCors(cors);
            var server = new HttpSelfHostServer(config);
            server.OpenAsync().Wait();

App.config文件中添加以下内容：

<appSettings>
    <add key="baseAddress" value="http://localhost:9002" />
  </appSettings>

Create an OWIN configuration handler

class Startup
{
    //  Hack from http://stackoverflow.com/a/17227764/19020 to load controllers in 
    //  another assembly.  Another way to do this is to create a custom assembly resolver
    Type valuesControllerType = typeof(OWINTest.API.ValuesController);

    // 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();

        //  Enable attribute based routing
        //  http://www.asp.net/web-api/overview/web-api-routing-and-actions/attribute-routing-in-web-api-2
        config.MapHttpAttributeRoutes();

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

        appBuilder.UseWebApi(config);
    } 
}

Add API controllers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.Http;

namespace OWINTest.Service.API
{
    [RoutePrefix("api/testing")]
    public class RoutedController : ApiController
    {
        [Route("getall")]
        public IEnumerable<string> GetAllItems()
        {
            return new string[] { "value1", "value2" };
        }
    }
}

Add code to start/stop the WebAPI listener

public partial class APIServiceTest : ServiceBase
{
    public string baseAddress = "http://localhost:9000/";
    private IDisposable _server = null;

    public APIServiceTest()
    {
        InitializeComponent();
    }

    protected override void OnStart(string[] args)
    {
        _server = WebApp.Start<Startup>(url: baseAddress);
    }

    protected override void OnStop()
    {
        if(_server != null)
        {
            _server.Dispose();
        }
        base.OnStop();
    }
}

原文：http://www.cnblogs.com/xinzheng/p/5586965.html

https://github.com/danesparza/OWIN-WebAPI-Service