地图工具类，简单通俗,Java语言

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

/**
* @author valley
* @create 2018 - 05 - 21 14:35
*/
public class MapUtil {

private static String key="你申请的高德地图的key";

public static String getHttpResponse(String allConfigUrl) {
BufferedReader in = null;
StringBuffer result = null;
try {
// url请求中如果有中文，要在接收方用相应字符转码
URI uri = new URI(allConfigUrl);
URL url = uri.toURL();
URLConnection connection = url.openConnection();
connection.setRequestProperty("Content-type", "text/html");
connection.setRequestProperty("Accept-Charset", "utf-8");
connection.setRequestProperty("contentType", "utf-8");
connection.connect();
result = new StringBuffer();
// 读取URL的响应
in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8"));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
return result.toString();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return null;
}

/**
* 高德地图WebAPI : 驾车路径规划 计算两地之间行驶的距离(米)<br/>
* String origins:起始坐标<br/>
* String destination:终点坐标
*/
public static String distance(String origins, String destination) {
int strategy = 0;// 0速度优先（时间）1费用优先（不走收费路段的最快道路）2距离优先 3不走快速路 4躲避拥堵
// 5多策略（同时使用速度优先、费用优先、距离优先三个策略计算路径）。6不走高速 7不走高速且避免收费
// 8躲避收费和拥堵 9不走高速且躲避收费和拥堵
String url = "http://restapi.amap.com/v3/direction/driving?" + "origin=" + origins + "&destination="
+ destination + "&strategy=" + strategy + "&extensions=base&key="+key;
/*http://restapi.amap.com/v3/geocode/geo?address=郑州市未来路街道金水路226号&key=${key!}*/
JSONObject jsonobject = JSONObject.fromObject(getHttpResponse(url));
JSONArray pathArray = jsonobject.getJSONObject("route").getJSONArray("paths");
String distanceString = pathArray.getJSONObject(0).getString("distance");
return distanceString;
}

/**
* 高德地图WebAPI : 地址转化为高德坐标 <br/>
* String address：高德地图地址
*
*/
public static String coordinate(String address) {
try {
address = URLEncoder.encode(address, "utf-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String url = "http://restapi.amap.com/v3/geocode/geo?address=" + address
+ "&output=json&key="+key;
JSONObject jsonobject = JSONObject.fromObject(getHttpResponse(url));
JSONArray pathArray = jsonobject.getJSONArray("geocodes");
String coordinateString = pathArray.getJSONObject(0).getString("location");
return coordinateString;
}
/**
* 高德地图WebAPI : gps坐标转化为高德坐标 <br/>
* String coordsys：高德地图坐标
*
*/
public static String convert(String coordsys) {
try {
coordsys = URLEncoder.encode(coordsys, "utf-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String url = "http://restapi.amap.com/v3/assistant/coordinate/convert?locations=" + coordsys
+ "&coordsys=gps&output=json&key="+key;
JSONObject jsonobject = JSONObject.fromObject(getHttpResponse(url));
String coordinateString = jsonobject.getString("locations");
return coordinateString;
}

public static void main(String[] args) {
// 格式： 经度,纬度
// 注意：高德最多取小数点后六位
String origin = "104.043390" + "," + "30.641982";
String destination = "106.655347" + "," + "31.786691";
String address = "未来路街道金水路226号";

String coordinate = coordinate(address);
String distance = distance(origin, destination);

System.out.println("行驶距离-----" + distance);
System.out.println("地址转换高德坐标-----" + coordinate);

}
/*public static void main(String[] args) {
String coordsys = "116.481499,39.990475";
String moordsys =convert(coordsys);
System.out.println(moordsys);
}*/
}