问题描述
我对微软的Visual Studio前preSS 2013的Web版本12.0.30501.00更新2.我有2项目在里面，一个是网页API的解决方案，第二个是一个MVC项目旨在为观点。我创建一个简单的Web API返回HTT presponsemessage，我可以在提琴手去，我会看到JSON响应。然而，在我的第二个项目试图通过AJAX调用时，我收到一个跨域错误。
I have Microsoft Visual Studio Express 2013 for Web, Version 12.0.30501.00 Update 2. I have a solution with 2 project in it, one is a web api, and the second is an MVC project intended for for the views. I have create a simple web api returning httpresponsemessage and I can go in fiddler and I will see the json response. However in my second project when attempting to call through ajax I received a cross domain error.
我尝试按照该解决方案是这样的http://www.asp.net/web-api/overview/security/enabling-cross-origin-requests-in-web-api.但是安装时安装封装Microsoft.AspNet.WebApi.Cors - - 项目的WebService 在控制台经理，所以我用这个行，而不是我收到了一条错误pre。 安装封装Microsoft.AspNet.WebApi.Cors 然后我尝试下一个步骤是 config.EnableCors（）; 其状态的
The solution I try to follow is this http://www.asp.net/web-api/overview/security/enabling-cross-origin-requests-in-web-api. However when installing Install-Package Microsoft.AspNet.WebApi.Cors -pre -project WebService in the console manager I received an error so I used this line instead. Install-Package Microsoft.AspNet.WebApi.Cors then I try to the next step which is config.EnableCors(); its state that
'System.Web.Http.HttpConfiguration' does not contain a definition for 'EnableCors' and no extension method 'EnableCors' accepting a first argument of type 'System.Web.Http.HttpConfiguration' could be found (are you missing a using directive or an assembly reference?)
我不知道什么之后，我也尝试使用System.Web.Http.Cors添加; ，但状态的命名空间不存在。这种视觉工作室被下载约3个星期前，我觉得这个功能不应该是硬盘安装，因为它完全支持，有没有我缺少的东西吗？
I am not sure what to afterward, I also try to add using System.Web.Http.Cors; but state that the namespace does not exists. This visual studio was downloaded about 3 weeks ago, I feel this feature should not be hard to install as it fully supported, is there something that i am missing?
推荐答案
您应该安装的NuGet包 Microsoft.AspNet.WebApi.Cors
You should install a Nuget package Microsoft.AspNet.WebApi.Cors
从Visual Studio中的菜单，进入管理包，然后在包的名称中键入
From the menu in visual studio, go to Management Packages, and then type in the name of the package
这篇关于启用跨域ASP.net的Web API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！