根据经纬度获取地理位置名称省、市等信息

秘钥申请地址http://lbsyun.baidu.com/apiconsole/key

直接上代码：

package mg.algorithm;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

import net.sf.json.JSONObject;

public class GetLatAndLngByBaidu {

public static String getCoordinate(double lng, double lat) throws IOException {
StringBuilder resultData = new StringBuilder();
// 秘钥换成你申请的秘钥，到百度API申请ak值（即秘钥）
String url = "http://api.map.baidu.com/geocoder/v2/?ak=7hOstgqRCXdyrwwSKQiKsKUGa4GBF3Br&location=" + lat + ","
+ lng + "&output=json&pois=1";
URL myURL = null;
URLConnection httpsConn = null;
try {
myURL = new URL(url);
} catch (MalformedURLException e) {
e.printStackTrace();
}
InputStreamReader insr = null;
BufferedReader br = null;
try {
httpsConn = (URLConnection) myURL.openConnection();// 不使用代理
if (httpsConn != null) {
insr = new InputStreamReader(httpsConn.getInputStream(), "UTF-8");
br = new BufferedReader(insr);
String data = null;
while ((data = br.readLine()) != null) {
resultData.append(data);
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (insr != null) {
insr.close();
}
if (br != null) {
br.close();
}
}
String province = JSONObject.fromObject(resultData.toString()).getJSONObject("result")
.getJSONObject("addressComponent").getString("province");
if (province.contains("省")) {
province = province.replace("省", "");
}
if (province.contains("市")) {
province = province.replace("市", "");
}
if (province.contains("自治区")) {
province = province.replace("自治区", "");
}
if (province.contains("直辖市")) {
province = province.replace("直辖市", "");
}
return province;
}

public static void main(String[] args) throws IOException {
String o = GetLatAndLngByBaidu.getCoordinate(114.53901962, 38.04381327);
System.out.println(o);
}

}