调用百度Api根据省市区名称获取对应经纬度

ゞ浴缸里的玫瑰 2022-03-25 20:20 301阅读 0赞

好久没写博客了，最近刚好要做这样一个统计分析图，需要用到根据省市区的经纬度，下面代码是调的百度接口，缺点就是好像不能批量获取经纬度，[本篇原地址][Link 1]

package com.ziding.product.cooperation;
    
    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;
    import java.net.URLEncoder;
    
    public class GetCoordinate {
    
            public static void main(String[] args) {
                try {
                    String[] coordinate = new GetCoordinate().getCoordinate("浙江省嘉兴市平湖市");
                    System.out.println(coordinate[0]+"  "+coordinate[1]);//0:经度 1:纬度
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
    
    
            /**
             * 根据城市名称查询所在经纬度
             * @param addr 要查询的地址
             * 查询的地址
             * @return
             * @throws IOException
             */
            public String[] getCoordinate(String addr) throws IOException {
                String lng = null;//经度
                String lat = null;//纬度
                String address = null;
                try {
                    address = URLEncoder.encode(addr, "UTF-8");
                }catch (UnsupportedEncodingException e1) {
                    e1.printStackTrace();
                }
                String key = "tG9KaH7vDut0Ia9Dcu51ujQmkSjM4q54";
                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 String[]{lng,lat};
            }
    }

[Link 1]: https://blog.csdn.net/dejie0806/article/details/78729878#comments