在使用Swagger需要隐藏不开放的API
可以在SwaggerConfig.cs中加入

        /// <summary>  
        /// 隐藏接口，不生成到swagger文档展示  
        /// </summary>  
        [System.AttributeUsage(System.AttributeTargets.Method | System.AttributeTargets.Class)]

        public partial class HiddenApiAttribute : System.Attribute { }
        public class HiddenApiFilter : IDocumentFilter
        {
            /// <summary>  
            /// 重写Apply方法，移除隐藏接口的生成  
            /// </summary>  
            /// <param name="swaggerDoc">swagger文档文件</param>  
            /// <param name="schemaRegistry"></param>  
            /// <param name="apiExplorer">api接口集合</param>  
            public void Apply(SwaggerDocument swaggerDoc, SchemaRegistry schemaRegistry, IApiExplorer apiExplorer)
            {
                foreach (ApiDescription apiDescription in apiExplorer.ApiDescriptions)
                {
                    if (Enumerable.OfType<HiddenApiAttribute>(apiDescription.GetControllerAndActionAttributes<HiddenApiAttribute>()).Any())
                    {
                        string key = "/" + apiDescription.RelativePath;
                        if (key.Contains("?"))
                        {
                            int idx = key.IndexOf("?", System.StringComparison.Ordinal);
                            key = key.Substring(0, idx);
                        }
                        swaggerDoc.paths.Remove(key);
                    }
                }
            }
        }

并且在SwaggerConfig.cs 中加入

c.DocumentFilter();

API调实例

/// <summary>  
/// 隐藏接口方法生成文档(添加[HiddenApi]特性)  
/// </summary>  
/// <param name="value"></param>  
/// <returns></returns>  
[HiddenApi]  
[Route("HideApi")]          
[HttpGet]  
public HttpResponseMessage HideApi(string value)  
{  
    return Request.CreateResponse(HttpStatusCode.OK, new { errorCode = "0", value = value });  
}