如何将 Web API 添加到现有的 ASP.NET MVC 4 Web 应用程序项目? [英] How to add Web API to an existing ASP.NET MVC 4 Web Application project?

问题描述

我希望将 ASP.NET Web API 添加到 ASP.NET MVC 4 Web应用程序项目，在 Visual Studio 2012 中开发.我必须执行哪些步骤才能将正常运行的 Web API 添加到项目?我知道我需要一个从 ApiController 派生的控制器，但这就是我所知道的.

I wish to add an ASP.NET Web API to an ASP.NET MVC 4 Web Application project, developed in Visual Studio 2012. Which steps must I perform to add a functioning Web API to the project? I'm aware that I need a controller deriving from ApiController, but that's about all I know.

如果我需要提供更多详细信息，请告诉我.

Let me know if I need to provide more details.

推荐答案

我需要执行的步骤是:

1. 添加对System.Web.Http.WebHost的引用.
2. 添加App_StartWebApiConfig.cs(参见下面的代码片段).
3. 在Global.asax.cs 中导入命名空间System.Web.Http.
4. 在MvcApplication.Application_Start()(文件Global.asax.cs)中调用WebApiConfig.Register(GlobalConfiguration.Configuration)，之前注册默认的 Web 应用程序路由，否则将优先.
5. 添加从 System.Web.Http.ApiController 派生的控制器.

1. Add reference to System.Web.Http.WebHost.
2. Add App_StartWebApiConfig.cs (see code snippet below).
3. Import namespace System.Web.Http in Global.asax.cs.
4. Call WebApiConfig.Register(GlobalConfiguration.Configuration) in MvcApplication.Application_Start() (in file Global.asax.cs), before registering the default Web Application route as that would otherwise take precedence.
5. Add a controller deriving from System.Web.Http.ApiController.

然后我可以从 教程(您的第一个 ASP.NET Web API)来定义我的 API 控制器.

I could then learn enough from the tutorial (Your First ASP.NET Web API) to define my API controller.

App_StartWebApiConfig.cs:

App_StartWebApiConfig.cs:

using System.Web.Http;

class WebApiConfig
{
    public static void Register(HttpConfiguration configuration)
    {
        configuration.Routes.MapHttpRoute("API Default", "api/{controller}/{id}",
            new { id = RouteParameter.Optional });
    }
}

Global.asax.cs:

Global.asax.cs:

using System.Web.Http;

...

protected void Application_Start()
{
    AreaRegistration.RegisterAllAreas();

    RegisterGlobalFilters(GlobalFilters.Filters);
    WebApiConfig.Register(GlobalConfiguration.Configuration);
    RegisterRoutes(RouteTable.Routes);
    BundleConfig.RegisterBundles(BundleTable.Bundles);
}

2015 年 16 月 10 日更新:

Word 有，必须安装 NuGet 包 Microsoft.AspNet.WebApi 才能使上述工作正常运行.

Word has it, the NuGet package Microsoft.AspNet.WebApi must be installed for the above to work.

这篇关于如何将 Web API 添加到现有的 ASP.NET MVC 4 Web 应用程序项目?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！