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Owin Self Host

2024-08-27 20:44:32   225人阅读

http://owin.org/

Owin 定义了webserver和webapplication之间的标准接口，目标就是为了解耦webapplication对webserver的依赖，

就是说以后可以轻松的建立一个轻量级的HttpServer,

1.Basic Sample  Self Host

下面建立一个Basic Self Host Http Server Via Owin ，全部功能就是获取客户端的Http请求，然后做出回应，当发生Unhandled Exception的时候，会自动跳转到错误页，

Step1：Install-Package Microsoft.Owin.SelfHost

Step2:Configuration in Startup.css

using System;using System.Threading.Tasks;using Microsoft.Owin;using Owin;namespace OwinSelfHostBasic{    public class Startup    {        public void Configuration(IAppBuilder app)        {            app.UseErrorPage();            // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=316888            app.Run(context => {                if (context.Request.Path.Value =http://www.mamicode.com/="/fail")                {                    throw new Exception("Random exception");                }                context.Response.ContentType = "text/plain";                return context.Response.WriteAsync("Hello, world.");            });        }    }}

 

app.UseErrorPage();

为WebApplication指定错误页，

app.Run加入响应逻辑

Step3:指定监听端口

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace OwinSelfHostBasic{    class Program    {        static void Main(string[] args)        {            using (Microsoft.Owin.Hosting.WebApp.Start<Startup>("http://localhost:9000"))            {                Console.WriteLine("Press [enter] to quit...");                Console.ReadLine();            }        }    }}

 OK，一切准备就绪，启动这个Console程序，请求 http://localhost:9000/ 这个地址，看起来比NodeJS更加方便。

 2.Self Host Web API using Owin

Step1:Install-Package Microsoft.AspNet.WebApi.OwinSelfHost

Step2:Startup.cs

using Owin;using System.Web.Http; namespace OwinWebAPISelfHost{    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);        }    } }

 Step3：APIController

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Web.Http;namespace OwinWebAPISelfHost{    public class ValuesController : ApiController    {        // GET api/values         public IEnumerable<string> Get()        {            return new string[] { "value1", "value2" };        }    }}

 Step4：设置监听端口

using Microsoft.Owin.Hosting;using System;using System.Net.Http;namespace OwinWebAPISelfHost{    public class Program    {        static void Main()        {            string baseAddress = "http://localhost:9000/";            // Start OWIN host             using (WebApp.Start<Startup>(url: baseAddress))            {                // Create HttpCient and make a request to api/values                 HttpClient client = new HttpClient();                var response = client.GetAsync(baseAddress + "api/values").Result;                Console.WriteLine(response);                Console.WriteLine(response.Content.ReadAsStringAsync().Result);                Console.ReadLine();            }        }    }}

 Step5：启动Console程序，这里我们看到返回的是Json格式的数据，当我们用火狐浏览器进行请求，会发现返回的是XML格式的数据,因为火狐浏览器默认的Accept为XML

 

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