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.fromStringToLatLng(latLng);
mapPoint.setName(result.organization);
mapPoint.setNote(result.city + " " + result.country);
map.panTo(mapPoint.point);
} catch (Exception e) {
result.error = "IP_NOT_FOUND";
}
}
}
protected void createMenu(Menu menu, int instance){
menu.add(mapFindAddressMenuItem);
}
}
//--------------------------------- 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
&n
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