Blackberry引路蜂地图开发示例：IP地址查询

IP地址查询，可以根据IP地址查询到该IP所在的地理经纬度坐标，比如下述例子查询IP 地址58.192.32.1，所在经纬度为118.777802,32.061699，为南京大学所在地。

[java] 
//--------------------------------- PACKAGE ------------------------------------  
package com.pstreets.gisengine.demo.rim; 
//--------------------------------- IMPORTS ------------------------------------  
import com.mapdigit.gis.DigitalMap; 
import com.mapdigit.gis.MapPoint; 
import com.mapdigit.gis.geometry.GeoLatLng; 
import com.mapdigit.gis.raster.MapType; 
import com.mapdigit.gis.service.IIpAddressGeocodingListener; 
import com.mapdigit.gis.service.IpAddressLocation; 
import com.pstreets.gisengine.demo.MapDemoRIM; 
import net.rim.device.api.ui.component.Menu; 
import net.rim.device.api.ui.MenuItem; 
//[------------------------------ MAIN CLASS ----------------------------------]  
public class MapIpSearchRIM extends MapDemoRIM implements 
  IIpAddressGeocodingListener   { 
    /**
     * Entry point for application
     * @param args Command line arguments (not used)
     */ 
    public static void main(String[] args) 
    { 
        // Create a new instance of the application and make the currently  
        // running thread the application's event dispatch thread.  
        MapIpSearchRIM theApp = new MapIpSearchRIM(); 
        theApp.enterEventDispatcher(); 
    } 
    private MenuItem mapFindAddressMenuItem = new MenuItem("Find Address", 0, 0){ 
        public void run(){ 
           map.getIpLocations("58.192.32.1"); 
        } 
    }; 
    public MapIpSearchRIM() { 
        init(); 
        pushScreen(canvas); 
        map.setIpAddressGeocodingListener(this); 
       GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778); 
        map.setCenter(center, 13, MapType.MICROSOFTCHINA);  
    } 
   public void done(String query, IpAddressLocation result) { 
        if (result != null && result.error.length() == 0 
                && result.longitude.length() > 0 
                && result.latitude.length() > 0) { 
            try { 
                MapPoint mapPoint = new MapPoint(); 
                String latLng = "[" + result.longitude + "," 
                        + result.latitude + ",0]"; 
                mapPoint.point = DigitalMap.fromStringToL