java挪用百度定位api辦事獲得地輿地位示例。本站提示廣大學習愛好者:(java挪用百度定位api辦事獲得地輿地位示例)文章只能為提供參考,不一定能成為您想要的結果。以下是java挪用百度定位api辦事獲得地輿地位示例正文
package test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.Charset;
import org.json.JSONException;
import org.json.JSONObject;
/**
* java依據url獲得json對象
* @author openks
* @since 2013-7-16
* 須要添加java-json.jar能力運轉
*/
public class GetPlaceByIp {
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
InputStream is = new URL(url).openStream();
try {
BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
String jsonText = readAll(rd);
JSONObject json = new JSONObject(jsonText);
return json;
} finally {
is.close();
// System.out.println("同時 從這裡也能看出 即使return了,依然會履行finally的!");
}
}
public static void main(String[] args) throws IOException, JSONException {
//這裡挪用百度的ip定位api辦事 詳見 http://api.map.百度.com/lbsapi/cloud/ip-location-api.htm
JSONObject json = readJsonFromUrl("http://api.map.百度.com/location/ip?ak=F454f8a5efe5e577997931cc01de3974&ip=202.198.16.3");
System.out.println(json.toString());
System.out.println(((JSONObject) json.get("content")).get("address"));
}
}