java工具类(一)之服务端java实现根据地址从百度API获取经纬度

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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

}

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