WebApi 在部署到 Azure 网站时不起作用

我的WebApi在我的本地计算机上运行良好，但是当发布到Azure（Azure网站）时，我得到以下信息：

找不到与请求 URI 匹配的 HTTP 资源 "http://myazurewebsite.domain/Api/Zipcode/GetLatLong?zip5=23423"。

但是在本地主机上，它工作得很好。

http://localhost/Api/Zipcode/GetLatLong?zip5=20024
{"Latitude":38.89,"Longitude":-77.03}

我有一个修改过的WebApi路由：

 public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Routes.MapHttpRoute(
            name: "DefaultPublicApi",
            routeTemplate: "Api/{controller}/{action}/{id}/{format}",
            defaults: new { id = RouteParameter.Optional, format = RouteParameter.Optional}
        );
    }
}

接口控制器类：

using System.Net;
using System.Net.Http;
using System.Web.Http;
using Project.Geography.Services;
using Project.WebPublic.Filters;
namespace Project.WebPublic.Controllers.WebApi
{
    public class ZipCodeController : ApiController
    {
        private readonly ZipCodeService _zipCodeService;
        public ZipCodeController(ZipCodeService zipCodeService)
        {
            _zipCodeService = zipCodeService;
        }

        [HttpGet]
        [TransactionFilter]
        public HttpResponseMessage GetLatLong(string zip5)
        {
            if (zip5.Length != 5)
                return Request.CreateResponse(HttpStatusCode.BadRequest, "Zip Code Length Not Equal to 5");
            var zip = _zipCodeService.GetByZip5(zip5);
            if (zip == null)
                return Request.CreateResponse(HttpStatusCode.NotFound, "Could not find Zip Code in Database");
            var latlong = new
            {
                Latitude = zip.Latitude,
                Longitude = zip.Longitude
            };
            return Request.CreateResponse(HttpStatusCode.OK, latlong);
        }
    }
}

    [HttpGet]
    [TransactionFilter]
    [Route("api/GetLatLong")]
    public HttpResponseMessage GetLatLong(string zip5)
    {
        if (zip5.Length != 5)
            return Request.CreateResponse(HttpStatusCode.BadRequest, "Zip Code Length Not Equal to 5");
        var zip = _zipCodeService.GetByZip5(zip5);
        if (zip == null)
            return Request.CreateResponse(HttpStatusCode.NotFound, "Could not find Zip Code in Database");
        var latlong = new
        {
            Latitude = zip.Latitude,
            Longitude = zip.Longitude
        };
        return Request.CreateResponse(HttpStatusCode.OK, latlong);
    }

public static class WebApiConfig
{
    /// <summary>
    /// Register the http configuration for web API.
    /// </summary>
    /// <param name="config">The http configuration instances</param>
    public static void Register(HttpConfiguration config)
    {
        config.MapHttpAttributeRoutes();
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional });

    }
}