根据百度API获得经纬度，然后根据经纬度在获得城市信息-白红宇

根据百度API获得经纬度，然后根据经纬度在获得城市信息

阅读量：6939 次

发布时间：2019-06-27

本文共 3295 字，大约阅读时间需要 10 分钟。

摘要: 工作中刚好用到这块，觉得挺好分享下

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 jueyue 返回格式：Map
      
        map map.put("status", * reader.nextString());//状态 map.put("result", list);//查询结果 * list
       
        
         > * 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}}

原文地址：

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