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。
- package com.pstreets.gisengine.demo.lwuit;
- //--------------------------------- 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.MapDemoLWUIT;
- import com.sun.lwuit.Command;
- import com.sun.lwuit.events.ActionEvent;
- public class MapIpSearchLWUIT extends MapDemoLWUIT
- implements IIpAddressGeocodingListener{
- private Command mapFindAddressCommand;
- public void startApp() {
- init();
- canvas.setTitle("IP Search");
- mapFindAddressCommand=new Command("Find Address"){
- public void actionPerformed(ActionEvent evt) {
- map.getIpLocations("58.192.32.1");
- }
- };
- canvas.addCommand(mapFindAddressCommand);
- GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778);
- map.setCenter(center, 13, MapType.MICROSOFTCHINA);
- map.setIpAddressGeocodingListener(this);
- canvas.show();
- }
- 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";
- }
- }
- }
- }
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。