ASP. NET Web API Practice series 01, hosted in ASP.

Create an empty ASP. NET Web form project.

Right-click the project, add New item, create Web API controller class, TestController.

Delete the TestController default content, write the following:

using System.Web.Http;
namespace WebApplication1
{
     Public class Testcontroller:apicontroller
    {
        [Acceptverbs ("Get")]
         Public string SayHello ()
        {
            return "Hello World from ASP. Web API";
        }
    }
}

In fact, when adding the TestController class, we added the following components by default:

1, System.Web.Http.dll
2, System.Web.Http.WebHost.dll
3, System.Net.Http.dll
4, System.Net.Http.Formatting

The next step is to register the template with a similar "api/{controller}/{action}" to the route collection of ASP.

Create the Globa.asax file and write the following:

using System.Web.Routing;
using System.Web.Http;
namespace WebApplication1
{
     Public class Global:System.Web.HttpApplication
    {
        protected void Application_Start (object sender, EventArgs e)
        {
            Compliant format: Webapi/test/sayhello
            RouteTable.Routes.MapHttpRoute ("demo", "Webapi/{controller}/{action}");
        }
    }
}

We put the project on IIS instead of debugging on iisexpress. Right-click the Project-property--web, set as follows:

To save the settings, jump out of the box below and click "Yes".

Then, you have one more IIS site on IIS.

Open Browser Input: Http://localhost/WebApplication1/webapi/Test/SayHello

Why is the returned format XML?
-Because of the Chrome browser's request header, the type of the "Accept" request is XML.

Open fiddler, if the request "Accept" is set to "application/html", we can get to the content of the format.

The returned result is status code 200.

ASP. NET Web API Practice series 01, hosted in ASP.