原文:解决ArcGIS API for Silverlight 加载地图的内外网访问问题

先上一个类，如下：

public class BaseClass

{

        public static string getFullUri(string oldUriString)

        {

            string newUriString = oldUriString;

            //处理相对地址============================================================

            if (newUriString[0] == '/')

            {

                string shost = System.Windows.Browser.HtmlPage.Document.DocumentUri.Host;

                int sport = System.Windows.Browser.HtmlPage.Document.DocumentUri.Port;

                newUriString = "http://" + shost + (sport == 80 ? "" : ":" + sport.ToString()) + newUriString;

            }

            if (!newUriString.StartsWith("http"))

            {

                string shost = System.Windows.Browser.HtmlPage.Document.DocumentUri.Host;

                int sport = System.Windows.Browser.HtmlPage.Document.DocumentUri.Port;

                string slocal = System.Windows.Browser.HtmlPage.Document.DocumentUri.LocalPath;

                slocal = slocal.Substring(0, slocal.LastIndexOf('/'));

                Uri turi = new Uri("http://" + shost + (sport == 80 ? "" : ":" + sport.ToString()) + slocal + "/" + newUriString, UriKind.Absolute);

                newUriString = turi.ToString();

            }

            return newUriString;

        }

   }

 <esri:Map>

       <esri:Map.Layers>

                <esri:ArcGISTiledMapServiceLayer ID="BaseLayer" Url="/arcgis/rest/services/HSDQ/MapServer/"/>

       </esri:Map.Layers>

 </esri:Map>

 public MainPage()

 {

      InitializeComponent();

      ArcGISTiledMapServiceLayer layer = myMap.Layers["BaseLayer"] as ArcGISTiledMapServiceLayer;

      layer.Url = BaseClass.getFullUri(layer.Url);

}

这样就可以解决内网IP地址访问和外网IP地址同样访问的问题。