各种经纬度坐标系转换-百度坐标系、火星坐标系、国际坐标系

（文章代码参考网上 测试没什么问题， 汇总整理希望对大家有帮助-dou ）WGS84：国际坐标系，为一种大地坐标系，也是目前广泛使用的GPS全球卫星定位系统使用的坐标系。GCJ02：火星坐标系，是由中国国家测绘局制订的地理信息系统的坐标系统。由WGS84坐标系经加密后的坐标系。BD09：为百度坐标系，在GCJ02坐标系基础上再次加密。其中bd09ll表示百度经纬度坐标，bd09mc表示百度墨卡托米制坐标

一 ： 百度坐标与百度墨卡坐标互转

import java.util.HashMap;import java.util.Map;/** * @ClassName: Baidu * @Description: 百度坐标与百度墨卡坐标互转* @author: Max dou* @date: 4月11日 下午4:49:54 */public class Baidu {public static void main(String[] args) {//百度坐标转百度墨卡坐标Map<String, Double> location = convertMC2LL(13745329.000000, 5104310.500000);System.out.println(location.get("lng")+"==="+location.get("lat"));//百度墨卡坐标转百度坐标location = convertLL2MC(location.get("lng"),location.get("lat"));System.out.println(location.get("x")+"==="+location.get("y"));}private static Double EARTHRADIUS = 6370996.81;private static Double[] MCBAND = {12890594.86, 8362377.87, 5591021d, 3481989.83, 1678043.12, 0d};private static Double[] LLBAND = {75d, 60d, 45d, 30d, 15d, 0d};private static Double[][] MC2LL = {{1.410526172116255e-8, 0.00000898305509648872, -1.9939833816331, 200.9824383106796, -187.2403703815547, 91.6087516669843, -23.38765649603339, 2.57121317296198, -0.03801003308653, 17337981.2}, {-7.435856389565537e-9, 0.000008983055097726239, -0.7862586289, 96.32687599759846, -1.85204757529826, -59.36935905485877, 47.40033549296737, -16.50741931063887, 2.28786674699375, 10260144.86}, {-3.030883460898826e-8, 0.00000898305509983578, 0.30071316287616, 59.74293618442277, 7.357984074871, -25.38371002664745, 13.45380521110908, -3.29883767235584, 0.32710905363475, 6856817.37}, {-1.981981304930552e-8, 0.000008983055099779535, 0.03278182852591, 40.31678527705744, 0.65659298677277, -4.44255534477492, 0.85341911805263, 0.12923347998204, -0.04625736007561, 4482777.06}, {3.09191371068437e-9, 0.000008983055096812155, 0.00006995724062, 23.10934304144901, -0.00023663490511, -0.6321817810242, -0.00663494467273, 0.03430082397953, -0.00466043876332, 2555164.4}, {2.890871144776878e-9, 0.000008983055095805407, -3.068298e-8, 7.47137025468032, -0.00000353937994, -0.02145144861037, -0.00001234426596, 0.00010322952773, -0.00000323890364, 826088.5}};private static Double[][] LL2MC = {{-0.0015702102444, 111320.7020616939, 1704480524535203d, -10338987376042340d, 26112667856603880d, -35149669176653700d, 26595700718403920d, -10725012454188240d, 1800819912950474d, 82.5}, {0.0008277824516172526, 111320.7020463578, 647795574.6671607, -408173.641316, 10774905663.51142, -15171875531.51559, 12053065338.62167, -5124939663.577472, 913311935.9512032, 67.5}, {0.00337398766765, 111320.702162, 4481351.045890365, -23393751.19931662, 79682215.47186455, -115964993.2797253, 97236711.15602145, -43661946.33752821, 8477230.501135234, 52.5}, {0.00220636496208, 111320.709128, 51751.86112841131, 3796837.749470245, 99.7397791013, -1221952.21711287, 1340652.697009075, -620943.6990984312, 144416.9293806241, 37.5}, {-0.0003441963504368392, 111320.7020576856, 278.2353980772752, 2485758.690035394, 6070.750963243378, 54821.18345352118, 9540.606633304236, -2710.55326746645, 1405.483844121726, 22.5}, {-0.0003218135878613132, 111320.7020701615, 0.00369383431289, 823725.6402795718, 0.46104986909093, 2351.343141331292, 1.58060784298199, 8.77738589078284, 0.37238884252424, 7.45}};/*** 墨卡托坐标转经纬度坐标* @param x* @param y* @return*/public static Map<String, Double> convertMC2LL(Double x, Double y) {Double[] cF = null;x = Math.abs(x);y = Math.abs(y);for (int cE = 0; cE < MCBAND.length; cE++) {if (y >= MCBAND[cE]) {cF = MC2LL[cE];break;}}Map<String,Double> location = converter(x, y, cF);location.put("lng",location.get("x"));location.remove("x");location.put("lat",location.get("y"));location.remove("y");return location;}/*** 经纬度坐标转墨卡托坐标* @param lng* @param lat* @return*/private static Map<String, Double> convertLL2MC(Double lng, Double lat) {Double[] cE = null;lng = getLoop(lng, -180, 180);lat = getRange(lat, -74, 74);for (int i = 0; i < LLBAND.length; i++) {if (lat >= LLBAND[i]) {cE = LL2MC[i];break;}}if (cE!=null) {for (int i = LLBAND.length - 1; i >= 0; i--) {if (lat <= -LLBAND[i]) {cE = LL2MC[i];break;}}}return converter(lng,lat, cE);}private static Map<String, Double> converter(Double x, Double y, Double[] cE) {Double xTemp = cE[0] + cE[1] * Math.abs(x);Double cC = Math.abs(y) / cE[9];Double yTemp = cE[2] + cE[3] * cC + cE[4] * cC * cC + cE[5] * cC * cC * cC + cE[6] * cC * cC * cC * cC + cE[7] * cC * cC * cC * cC * cC + cE[8] * cC * cC * cC * cC * cC * cC;xTemp *= (x < 0 ? -1 : 1);yTemp *= (y < 0 ? -1 : 1);Map<String, Double> location = new HashMap<String, Double>();location.put("x", xTemp);location.put("y", yTemp);return location;}private static Double getLoop(Double lng, Integer min, Integer max) {while (lng > max) {lng -= max - min;}while (lng < min) {lng += max - min;}return lng;}private static Double getRange(Double lat, Integer min, Integer max) {if (min != null) {lat = Math.max(lat, min);}if (max != null) {lat = Math.min(lat, max);}return lat;}}

二 ： 国际坐标即gps坐标、百度坐标、火星坐标转换

/** * @ClassName: PositionUtil * @Description: * 各地图API坐标系统比较与转换;* WGS84坐标系：即地球坐标系，国际上通用的坐标系。设备一般包含GPS芯片或者北斗芯片获取的经纬度为WGS84地理坐标系,* 谷歌地图采用的是WGS84地理坐标系（中国范围除外）;* GCJ02坐标系：即火星坐标系，是由中国国家测绘局制订的地理信息系统的坐标系统。由WGS84坐标系经加密后的坐标系。* 谷歌中国地图和搜搜中国地图采用的是GCJ02地理坐标系; BD09坐标系：即百度坐标系，GCJ02坐标系经加密后的坐标系;* 搜狗坐标系、图吧坐标系等，估计也是在GCJ02基础上加密而成的。 chenhua* @author: Max dou* @date: 4月10日 下午4:17:44 */public class PositionUtil {public static final String BAIDU_LBS_TYPE = "bd09ll";public static double pi = 3.1415926535897932384626;public static double a = 6378245.0;public static double ee = 0.00669342162296594323;/*** 国际坐标 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System* * @param lat* @param lon* @return*/public static Gps gps84_To_Gcj02(double lat, double lon) {if (outOfChina(lat, lon)) {return null;}double dLat = transformLat(lon - 105.0, lat - 35.0);double dLon = transformLon(lon - 105.0, lat - 35.0);double radLat = lat / 180.0 * pi;double magic = Math.sin(radLat);magic = 1 - ee * magic * magic;double sqrtMagic = Math.sqrt(magic);dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);double mgLat = lat + dLat;double mgLon = lon + dLon;return new Gps(mgLat, mgLon);}/*** * 火星坐标系 (GCJ-02) to 国际坐标 * * @param lon * @param lat * @return* */public static Gps gcj_To_Gps84(double lat, double lon) {Gps gps = transform(lat, lon);double lontitude = lon * 2 - gps.getWgLon();double latitude = lat * 2 - gps.getWgLat();return new Gps(latitude, lontitude);}/*** 火星坐标系 (GCJ-02) to 百度坐标系 (BD-09) 的转换算法 将 GCJ-02 坐标转换成 BD-09 坐标* * @param gg_lat* @param gg_lon*/public static Gps gcj02_To_Bd09(double gg_lat, double gg_lon) {double x = gg_lon, y = gg_lat;double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * pi);double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * pi);double bd_lon = z * Math.cos(theta) + 0.0065;double bd_lat = z * Math.sin(theta) + 0.006;return new Gps(bd_lat, bd_lon);}/*** * 火星坐标系 (GCJ-02) to 百度坐标系 (BD-09) 的转换算法 * * 将 BD-09 坐标转换成GCJ-02 坐标 * * @param* bd_lat * @param bd_lon * @return*/public static Gps bd09_To_Gcj02(double bd_lat, double bd_lon) {double x = bd_lon - 0.0065, y = bd_lat - 0.006;double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * pi);double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * pi);double gg_lon = z * Math.cos(theta);double gg_lat = z * Math.sin(theta);return new Gps(gg_lat, gg_lon);}/*** 百度坐标系 (BD-09) to 国际坐标* @param bd_lat* @param bd_lon* @return*/public static Gps bd09_To_Gps84(double bd_lat, double bd_lon) {Gps gcj02 = PositionUtil.bd09_To_Gcj02(bd_lat, bd_lon);Gps map84 = PositionUtil.gcj_To_Gps84(gcj02.getWgLat(),gcj02.getWgLon());return map84;}public static boolean outOfChina(double lat, double lon) {if (lon < 72.004 || lon > 137.8347)return true;if (lat < 0.8293 || lat > 55.8271)return true;return false;}public static Gps transform(double lat, double lon) {if (outOfChina(lat, lon)) {return new Gps(lat, lon);}double dLat = transformLat(lon - 105.0, lat - 35.0);double dLon = transformLon(lon - 105.0, lat - 35.0);double radLat = lat / 180.0 * pi;double magic = Math.sin(radLat);magic = 1 - ee * magic * magic;double sqrtMagic = Math.sqrt(magic);dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);double mgLat = lat + dLat;double mgLon = lon + dLon;return new Gps(mgLat, mgLon);}public static double transformLat(double x, double y) {double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y+ 0.2 * Math.sqrt(Math.abs(x));ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;return ret;}public static double transformLon(double x, double y) {double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1* Math.sqrt(Math.abs(x));ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0* pi)) * 2.0 / 3.0;return ret;}public static void main(String[] args) {Gps gps = new Gps(40.084481,116.395412 );System.out.println("gps :" + gps);Gps bd = bd09_To_Gcj02(gps.getWgLat(), gps.getWgLon());System.out.println("bd :" + bd);}}/** * @ClassName: Gps * @Description: TODO* @author: Max dou* @date: 4月10日 下午4:19:13 */public class Gps {private double wgLat;private double wgLon;public Gps(double wgLat, double wgLon) {setWgLat(wgLat);setWgLon(wgLon);}public double getWgLat() {return wgLat;}public void setWgLat(double wgLat) {this.wgLat = wgLat;}public double getWgLon() {return wgLon;}public void setWgLon(double wgLon) {this.wgLon = wgLon;}@Overridepublic String toString() {return wgLat + "," + wgLon;}}

三 ： 利用百度地图api接口，坐标转换

参考链接：/index.php?title=webapi/guide/changeposition此接口为免费接口，不过每天有限制

四 ： 利用百度地图api接口，根据坐标获取地理位置信息

参考链接：/index.php?title=webapi/guide/webservice-geocoding

此接口为免费接口，不过每天有限制：

/*** @ClassName: BaiDuUtil* @Description: TODO* @author: Max dou* @date: 4月10日 上午11:58:55*/public class BaiDuUtil {public static String getCity(String lat, String lng) {JSONObject objSrc = getLocationInfo(lat, lng);System.out.println(objSrc.toString());JSONObject obj = getLocationInfo(lat, lng).getJSONObject("result").getJSONObject("addressComponent");return obj.getString("city");}public static JSONObject getLocationInfo(String lat, String lng) {String url = "http://api./geocoder/v2/?location=" + lat+ "," + lng + "&output=json&ak=" + "此处填写百度开放平台秘钥"+ "&pois=0";JSONObject obj = JSONObject.fromObject(HttpUtil.getRequest(url));return obj;}public static void main(String[] args) {System.out.println(BaiDuUtil.getCity("40.091637", "116.396764"));}}

五 ： 阿里云接口 ： 根据坐标获取地理位置信息

（此接口从网上找到的，已现在测试看没有限制条件）

需要json解析包：<dependency><groupId>net.sf.json-lib</groupId><artifactId>json-lib</artifactId><version>2.4</version><classifier>jdk15</classifier> </dependency>

import .URL;import net.sf.json.JSONArray;import net.sf.json.JSONObject;/** * @ClassName: GetLocation * @Description: TODO* @author: Max dou* @date: 4月10日 下午1:53:42 */public class GetLocation {public static void main(String[] args) { String add = getAdd("110.303959", "23.548133"); JSONObject jsonObject = JSONObject.fromObject(add); JSONArray jsonArray = JSONArray.fromObject(jsonObject.getString("addrList")); JSONObject j_2 = JSONObject.fromObject(jsonArray.get(1)); JSONObject j_1 = JSONObject.fromObject(jsonArray.get(0)); String allAdd = j_2.getString("admName"); String arr[] = allAdd.split(","); System.out.println("省："+arr[0]+"\n市："+arr[1]+"\n区："+arr[2]+"\n路："+j_1.getString("name")+"\n详细地址："+j_2.getString("name")); } public static String getAdd(String log, String lat ){ //lat 小 log 大 ，经过测试，数据的经纬度为国家坐标即火星坐标//参数解释: 纬度,经度 type 001 (100代表道路，010代表POI，001代表门址，111可以同时显示前三项) String urlString = "http://gc./regeocoding?l="+lat+","+log+"&type=111"; String res = "";try {URL url = new URL(urlString); .HttpURLConnection conn = (.HttpURLConnection)url.openConnection(); conn.setDoOutput(true); conn.setRequestMethod("POST"); java.io.BufferedReader in = new java.io.BufferedReader(new java.io.InputStreamReader(conn.getInputStream(),"UTF-8")); String line; while ((line = in.readLine()) != null) { res += line+"\n"; } in.close(); } catch (Exception e) { System.out.println("error in wapaction,and e is " + e.getMessage()); } System.out.println(res); return res; } }

如有什么问题，请大家指正，谢谢！