服务端java实现根据地址从百度API获取经纬度
代码:
package com.pb.baiduapi; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; /** * 获取经纬度 * * @author Sunny * 密钥:f247cdb592eb43ebac6ccd27f796e2d2 */ public class GetLatAndLngByBaidu { /** * @param addr * 查询的地址 * @return * @throws IOException */ public Object[] getCoordinate(String addr) throws IOException { String lng = null;//经度 String lat = null;//纬度 String address = null; try { address = java.net.URLEncoder.encode(addr, "UTF-8"); }catch (UnsupportedEncodingException e1) { e1.printStackTrace(); } String key = "f247cdb592eb43ebac6ccd27f796e2d2"; String url = String .format("http://api.map.baidu.com/geocoder?address=%s&output=json&key=%s", address, key); 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; int count = 1; while((data= br.readLine())!=null){ if(count==5){ lng = (String)data.subSequence(data.indexOf(":")+1, data.indexOf(","));//经度 count++; }else if(count==6){ lat = data.substring(data.indexOf(":")+1);//纬度 count++; }else{ count++; } } } } catch (IOException e) { e.printStackTrace(); } finally { if(insr!=null){ insr.close(); } if(br!=null){ br.close(); } } return new Object[]{lng,lat}; } public static void main(String[] args) throws IOException { GetLatAndLngByBaidu getLatAndLngByBaidu = new GetLatAndLngByBaidu(); Object[] o = getLatAndLngByBaidu.getCoordinate("成都市天府四街"); System.out.println(o[0]);//经度 System.out.println(o[1]);//纬度 } }
输出结果:104.04701
30.548397
调用以下路径根据经纬度获取地址,返回数据为JSON格式,
http://api.map.baidu.com/geocoder/v2/?ak=pmCgmADsAsD9rEXkqWNcTzjd&location=30.548397,104.04701&output=json&pois=1
返回结果:
{
"status": 0,
"result": {
"location": {
"lng": 104.04701001273,
"lat": 30.548396923974
},
"formatted_address": "四川省成都市武侯区天府四街",
"business": "",
"addressComponent": {
"city": "成都市",
"district": "武侯区",
"province": "四川省",
"street": "天府四街",
"street_number": ""
},
"pois": [
{
"addr": "四川省成都市武侯区天府四街",
"cp": "NavInfo",
"distance": "144",
"name": "保利·心语花园",
"poiType": "地产小区",
"point": {
"x": 104.04823889466,
"y": 30.54874673449
},
"tel": "",
"uid": "881965b85a8d8a977369d348",
"zip": ""
},
{
"addr": "四川省成都市武侯区天府四街",
"cp": "NavInfo",
"distance": "629",
"name": "逸都国际",
"poiType": "地产小区",
"point": {
"x": 104.05247889667,
"y": 30.547152788724
},
"tel": "",
"uid": "e49f869c4f156be9c6effb6b",
"zip": ""
},
{
"addr": "四川省成都市武侯区剑南大道",
"cp": "NavInfo",
"distance": "881",
"name": "世豪广场",
"poiType": "地产小区",
"point": {
"x": 104.05252381195,
"y": 30.553318490823
},
"tel": "",
"uid": "a2a7b0b167a0e1997adbd206",
"zip": ""
},
{
"addr": "四川省成都市武侯区德赛三街",
"cp": "NavInfo",
"distance": "989",
"name": "顾客停车场",
"poiType": "交通设施",
"point": {
"x": 104.04942465794,
"y": 30.555798655385
},
"tel": "",
"uid": "d135a6e15571911483a00cfe",
"zip": ""
}
],
"cityCode": 75
}
}