经纬度转换
百度API
百度API官网 登入后点击控制台，选择应用管理、我的应用、创建应用，等应用创建成功后复制访问应用AK的值；
经纬度转换工具类
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.5</version>
</dependency>
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.83</version>
</dependency>import com.alibaba.fastjson.JSON;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.springframework.stereotype.Component;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
/**
* @Description : 百度地图地址解析
* @Author : Bruce Lee
* @CreateTime : 2024/1/12
*/
@Component
public class GetAddressUtil {
private static final String AK = "e5A5xSv2kfWsVexvXQsvhCCkqa99PGjq";
//由于接口请求有时候无法得到响应，故循环调用五次
public static Map<String,String> getMap(String address){
Map<String,String> map = null;
for(int i=0;i<5;i++){
map =getGeocoderLatitude(address);
if(map!= null){
break;
}
}
return map;
}
/**
* 返回输入地址的经纬度坐标
* key lng(经度),lat(纬度)
*/
public static Map<String,String> getGeocoderLatitude(String address){
BufferedReader in = null;
try {
//将地址转换成utf-8的16进制
address = URLEncoder.encode(address, "UTF-8");
URL tirc = new URL("http://api.map.baidu.com/geocoder?address="+ address +"&output=json&key="+ AK);
in = new BufferedReader(new InputStreamReader(tirc.openStream(),"UTF-8"));
String res;
StringBuilder sb = new StringBuilder("");
while((res = in.readLine())!=null){
sb.append(res.trim());
}
String str = sb.toString();
Map<String,String> map = null;
if(StringUtils.isNotEmpty(str)){
int lngStart = str.indexOf("lng\":");
int lngEnd = str.indexOf(",\"lat");
int latEnd = str.indexOf("},\"precise");
if(lngStart > 0 && lngEnd > 0 && latEnd > 0){
String lng = str.substring(lngStart+5, lngEnd);
String lat = str.substring(lngEnd+7, latEnd);
map = new HashMap<String,String>();
map.put("lng", lng);
map.put("lat", lat);
return map;
}
}
}catch (Exception e) {
e.printStackTrace();
}finally{
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
//经纬度转地址
public static String getAddressByLngAndLat(String lat,String lng){
String location = lat+","+lng;
String url="http://api.map.baidu.com/reverse_geocoding/v3/?ak="+AK+"&output=json&coordtype=bd09ll&location="+location;
String res=acquire(url);
//获取详细地址
String addressLocation= JSON.parseObject(res).getJSONObject("result").getString("formatted_address");
//获取省份
// String province="";
// if(res.contains("province")){
// province= JSON.parseObject(res).getJSONObject("result").getJSONObject("addressComponent").getString("province");
// }
// System.out.println(addressLocation);
return addressLocation;
}
//Http处理函数
public static String acquire(String url){
CloseableHttpClient httpClient= HttpClientBuilder.create().build();
HttpGet httpGet=new HttpGet(url);
CloseableHttpResponse response=null;
try {
response=httpClient.execute(httpGet);
HttpEntity responseEntity=response.getEntity();
if (responseEntity!=null){
return EntityUtils.toString(responseEntity);
}
} catch (IOException e) {
e.printStackTrace();
}finally {
try {
if(httpClient!=null){
httpClient.close();
}
if (response!=null){
response.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}
高德API
经纬度转化工具类
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
public class MapUtils {
public static void main(String[] args) {
try {
// 1、根据地址获取经纬度
Map<String, String> lonAndLat = getLonAndLat("浙江省杭州市滨江区江汉路1515号", "key");
System.out.println("转换后经纬度为：" + lonAndLat);
// 2、根据经纬度获取地址
String formattedAddress = getAMapByLngAndLat("120.204798", "30.201000", "高德key");
System.out.println("转换后地址为：" + formattedAddress);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 地址转换为经纬度
*
* @param address 地址
* @param key 高德地图应用key
* @return 经纬度
*/
public static Map getLonAndLat(String address, String key) {
// 返回输入地址address的经纬度信息, 格式是 经度,纬度
String queryUrl = "http://restapi.amap.com/v3/geocode/geo?key=" + key + "&address=" + address;
// 高德接口返回的是JSON格式的字符串
String queryResult = getResponse(queryUrl);
Map<String, String> map = new HashMap<String, String>();
JSONObject obj = JSONObject.parseObject(queryResult);
if (obj.get("status").toString().equals("1")) {
JSONObject jobJSON = JSONObject.parseObject(obj.get("geocodes").toString().substring(1, obj.get("geocodes").toString().length() - 1));
String location = jobJSON.get("location").toString();
System.out.println("经纬度：" + location);
String[] lonAndLat = location.split(",");
if (lonAndLat != null && lonAndLat.length == 2) {
map.put("lng", lonAndLat[0]);
map.put("lat", lonAndLat[1]);
}
System.out.println(map);
return map;
} else {
throw new RuntimeException("地址转换经纬度失败，错误码：" + obj.get("infocode"));
}
}
/**
* 将经纬度getLng， getLat 通过getAMapByLngAndLat方法转换地址
*
* @param getLng 经度
* @param getLat 纬度
* @param key 高德地图应用key
* @return 地址名称
* @throws Exception
*/
public static String getAMapByLngAndLat(String getLng, String getLat, String key) throws Exception {
String url;
try {
url = "http://restapi.amap.com/v3/geocode/regeo?output=JSON&location=" + getLng + ","
+ getLat + "&key=" + key + "&radius=0&extensions=base";
String queryResult = getResponse(url); // 高德接品返回的是JSON格式的字符串
// 将获取结果转为json数据
JSONObject obj = JSONObject.parseObject(queryResult);
System.out.println("obj为：" + obj);
if (obj.get("status").toString().equals("1")) {
// 如果没有返回-1
JSONObject regeocode = obj.getJSONObject("regeocode");
if (regeocode.size() > 0) {
// 在regeocode中拿到 formatted_address 具体位置
return regeocode.get("formatted_address").toString();
} else {
throw new RuntimeException("未找到相匹配的地址！");
}
} else {
throw new RuntimeException("请求错误！");
}
} catch (Exception e) {
e.printStackTrace();
}
return "-1";
}
/**
* 根据两个定位点的经纬度算出两点间的距离
*
* @param startLonLat 起始经纬度
* @param endLonLat 结束经纬度（目标经纬度）
* @param key 高德地图应用key
* @return 两个定位点之间的距离
*/
private static long getDistance(String startLonLat, String endLonLat, String key) {
// 返回起始地startAddr与目的地endAddr之间的距离，单位：米
Long result = new Long(0);
String queryUrl = "http://restapi.amap.com/v3/distance?key=" + key + "&origins=" + startLonLat + "&destination=" + endLonLat;
String queryResult = getResponse(queryUrl);
JSONObject obj = JSONObject.parseObject(queryResult);
JSONArray ja = obj.getJSONArray("results");
JSONObject jobO = JSONObject.parseObject(ja.getString(0));
result = Long.parseLong(jobO.get("distance").toString());
System.out.println("距离：" + result);
return result;
}
/**
* 发送请求
*
* @param serverUrl 请求地址
*/
private static String getResponse(String serverUrl) {
// 用JAVA发起http请求，并返回json格式的结果
StringBuffer result = new StringBuffer();
try {
URL url = new URL(serverUrl);
URLConnection conn = url.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
in.close();
} catch (Exception e) {
e.printStackTrace();
}
return result.toString();
}
}
参考地址
【1】https://blog.csdn.net/duan196_118/article/details/114595445
【2】百度地图API服务文档
【3】java离线经纬度
【4】高德地图API服务文档
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