根据高德地图API获取全国省市县信息

package com.chinamobile.cmss.share.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ConnectException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

public class Address {
	
	/**
	 * 功能说明：更新高德的省市区到我们的省市区表里
	 * @author  MrDoubi 2019-07-08 10:12:30
	 * @return model
	 */
	public static void updateInitGaoDe(){
	    //慎用！
	    //我本人用来删除省市区表原来的记录的
	//高德的key 申请时选择web服务
	    String gaodeKey = "";
	//一个http请求  这个方法放在羡慕
	    String res = 
	HttpClientUtils.jsonPostRequest("http://restapi.amap.com/v3/config/district","key=高德地图注册的key值&subdistrict=3");
	    JSONObject json = JSONObject.parseObject(res);
	    int count = 0;
	    System.out.println(json.get("status"));
	    List list = new ArrayList<>();
	    Map provinceMap = new HashMap();
	    if(json.get("status").equals("1")){
	        //国家 暂时只有中国
	        JSONArray districts = json.getJSONArray("districts");
	        for (int i = 0; i < districts.size(); i++) {
	            JSONObject district = districts.getJSONObject(i);
	            //省份
	            JSONArray provinces = district.getJSONArray("districts");
	            for (int j = 0; j < provinces.size(); j++) {
	                JSONObject province = provinces.getJSONObject(j);
//	                System.out.println(
//	                        "province ::::::  ====  name:"+province.getString("name")+
//	                                "   center:"+province.getString("center")+
//	                                "   adcode:"+province.getString("adcode")
//	                );
	             //在这里新增省份 到表中
	                //市
	                JSONArray citys = province.getJSONArray("districts");
	                Map cityMap = new HashMap();
	                for (int k = 0; k < citys.size(); k++) {
	                    JSONObject city = citys.getJSONObject(k);
//	                    System.out.println(
//	                            "city ::::::  ====  name:"+city.getString("name")+
//	                                    "   center:"+city.getString("center")+
//	                                    "   adcode:"+city.getString("adcode")
//	                    );
//	                    System.out.println(province.getString("name") + "-" + city.getString("name"));
	 //在这里新增市 到表中
	                    //区
	                    JSONArray areas = city.getJSONArray("districts");
	                    Map countyMap = new HashMap();
	                    for (int l = 0; l < areas.size(); l++) {
	                        JSONObject area = areas.getJSONObject(l);
	                        countyMap.put(area.getString("name"), area.getString("name"));
	                        count++;
//	                        list.add(province.getString("name") + "-" + city.getString("name") + "-" + area.getString("name"));
//	                        System.out.println(province.getString("name") + "-" + city.getString("name") + "-" + area.getString("name"));
	                        /*System.out.println(
	                                "area ::::::  ====  name:"+area.getString("name")+
	                                        "   center:"+area.getString("center")+
	                                "   adcode:"+area.getString("adcode")
	                        );*/
	//在这里新增区 到表中
	                    }
	                    cityMap.put(city.getString("name"), countyMap);
	                }
	                provinceMap.put(province.getString("name"), cityMap);
	            }
	        }
	        List result = new ArrayList();
	        List proList = sortData(provinceMap);
	        count = 0;
	        for (String pro : proList) {
	        	if (provinceMap.get(pro) instanceof Map) {
	        		Map map = (Map) provinceMap.get(pro);
	        		List ciList = sortData(map);
	        		for (String ci : ciList) {
//	        			System.out.println(pro + "-" + ci);
	        			Map map2 = (Map) map.get(ci);
		        		List coList = sortData(map2);
		        		for (String co : coList) {
		        			System.out.println(pro + "-" + ci + "-" + co);
		        			count++;
						}
					}
	        	}
			}
	        System.out.println("获取成功 共"+count+"条数据");
	    }else {
	        System.err.println(json.get("info"));
	    }
	}
	
	@SuppressWarnings({ "unchecked", "rawtypes" })
	public static List sortData(Map map) {
		Set set = map.keySet();
		
		Object[] ls = set.toArray();
		List list = new ArrayList<>();
		for (Object str : ls) {
			list.add(str.toString());
		}

        
        @SuppressWarnings("rawtypes")
		Comparator comparator = Collator.getInstance(java.util.Locale.CHINA);
        Collections.sort(list,comparator);
        return list;
	}
	@SuppressWarnings({ "unchecked", "rawtypes" })
	public static void sortData(List list) {
		
		@SuppressWarnings("rawtypes")
		Comparator comparator = Collator.getInstance(java.util.Locale.CHINA);
		Collections.sort(list,comparator);
	}


	/**
	 * 向指定 URL 发送POST方法的请求
	 *
	 * @param url 发送请求的 URL
	 * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return 所代表远程资源的响应结果
	 */
	public static String sendPost(String url, String param)
	{
	    PrintWriter out = null;
	    BufferedReader in = null;
	    StringBuilder result = new StringBuilder();
	    try
	    {
	        String urlNameString = url + "?" + param;
	        URL realUrl = new URL(urlNameString);
	        URLConnection conn = realUrl.openConnection();
	        conn.setRequestProperty("accept", "*/*");
	        conn.setRequestProperty("connection", "Keep-Alive");
	        conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
	        conn.setRequestProperty("Accept-Charset", "utf-8");
	        conn.setRequestProperty("contentType", "utf-8");
	        conn.setDoOutput(true);
	        conn.setDoInput(true);
	        out = new PrintWriter(conn.getOutputStream());
	        out.print(param);
	        out.flush();
	        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
	        String line;
	        while ((line = in.readLine()) != null)
	        {
	            result.append(line);
	        }
	    }
	    catch (ConnectException e)
	    {
	    }
	    catch (SocketTimeoutException e)
	    {
	    }
	    catch (IOException e)
	    {
	    }
	    catch (Exception e)
	    {
	    }
	    finally
	    {
	        try
	        {
	            if (out != null)
	            {
	                out.close();
	            }
	            if (in != null)
	            {
	                in.close();
	            }
	        }
	        catch (IOException ex)
	        {
	        }
	    }
	    return result.toString();
	}
	
	public static void main(String[] args) {
		updateInitGaoDe();
	}
}