在.net Framework4.7(非ASP.NET核心)中为MVC5设置有效的生产和消费媒体类型

protected void Application_Start()
{
    // 注册媒体类型
    GlobalConfiguration.Configuration.Formatters.JsonFormatter.SupportedMediaTypes
        .Add(new MediaTypeHeaderValue("application/json"));
    GlobalConfiguration.Configuration.Formatters.XmlFormatter.SupportedMediaTypes
        .Add(new MediaTypeHeaderValue("application/xml"));
}

[Produces("application/json")]
[Consumes("application/json")]
public class MyController : ApiController
{
    // 控制器代码...
}

[Produces("application/json")]
[Consumes("application/json")]
public IHttpActionResult Get()
{
    // 操作方法代码...
}