Java ME带路蜂地图开发示例：IP地址查询_J2ME

Java ME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.

注：目前IP查询结果总是以英文返回，如上述结果详细内容。ISP：”China Education and Research Network”Organization: “Nan Jing University”Country: “CN”City: “Nanjing”若想知道该经纬度对应的地名，可以使用地址反编码服务。你可以输入 127.0.0.1 查询本机地址。

package com.pstreets.gisengine.demo.midp;   //--------------------------------- 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.pstreets.gisengine.demo.MapDemoMIDP; import com.mapdigit.gis.service.IpAddressLocation; import javax.microedition.lcdui.Command; import javax.microedition.lcdui.CommandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable;   //[------------------------------ MAIN CLASS ----------------------------------] //--------------------------------- REVISIONS ---------------------------------- // Date       Name                 Tracking #         Description // --------   -------------------  -------------      -------------------------- // 28JAN2011  James Shen                              Initial Creation //////////////////////////////////////////////////////////////////////////////// public class MapIpSearchMIDP extends MapDemoMIDP implements CommandListener,         IIpAddressGeocodingListener {       private Command mapFindAddressCommand = new Command("Find Address",             Command.OK, 1);       public void startApp() {           init();         canvas.addCommand(mapFindAddressCommand);         map.setIpAddressGeocodingListener(this);         canvas.setCommandListener(this);         GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778);         map.setCenter(center, 15, MapType.MICROSOFTCHINA);         Display.getDisplay(this).setCurrent(canvas);     }       public void commandAction(Command c, Displayable d) {         if (c == mapFindAddressCommand) {             map.getIpLocations("58.192.32.1");         }     }       public void done(String query, IpAddressLocation result) {         if (result != null && result.error.length() == 0                && result.longitude.length() > 0                && result.longitude.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";             }         }     } }