GPS小数坐标不精确转换标准形式

package com.yksx.utils;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Connection;
import java.sql.PreparedStatement;

/**
* Created by ZMJ on 2018/8/17
*/
public class GPSUtils {
public static double pi = 3.1415926535897932384626;
public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
public static double a = 6378245.0;
public static double ee = 0.00669342162296594323;
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;
double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(x > 0 ? x : -x);
ret += (20.0 * Math.sin(6.0 * x * Math.PI) + 20.0 * Math.sin(2.0 * x * Math.PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(y * Math.PI) + 40.0 * Math.sin(y / 3.0 * Math.PI)) * 2.0 / 3.0;
ret += (160.0 * Math.sin(y / 12.0 * Math.PI) + 320 * Math.sin(y * Math.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;
double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(x > 0 ? x : -x);
ret += (20.0 * Math.sin(6.0 * x * Math.PI) + 20.0 * Math.sin(2.0 * x * Math.PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(x * Math.PI) + 40.0 * Math.sin(x / 3.0 * Math.PI)) * 2.0 / 3.0;
ret += (150.0 * Math.sin(x / 12.0 * Math.PI) + 300.0 * Math.sin(x / 30.0 * Math.PI)) * 2.0 / 3.0;
return ret;
}

public static double[] transform(double lat, double lon) {
if (outOfChina(lat, lon)) {
return new double[] { 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 double[] { mgLat, mgLon };
}

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;
}

/**
* 84 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System *
* * @param lat * @param lon * @return
*/
public static double[] gps84_To_Gcj02(double lat, double lon) {
if (outOfChina(lat, lon)) {
return new double[] { 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 double[] { mgLat, mgLon };
}

/**
* * 火星坐标系 (GCJ-02) to 84 * * @param lon * @param lat * @return *
*/
public static double[] gcj02_To_Gps84(double lat, double lon) {
double[] gps = transform(lat, lon);
double lontitude = lon * 2 - gps[1];
double latitude = lat * 2 - gps[0];
return new double[] { latitude, lontitude };
}

/**
* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法将 GCJ-02 坐标转换成 BD-09 坐标 * * @param
* lat * @param lon
*/
public static double[] gcj02_To_Bd09(double lat, double lon) {
double x = lon, y = lat;
double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
double tempLon = z * Math.cos(theta) + 0.0065;
double tempLat = z * Math.sin(theta) + 0.006;
double[] gps = { tempLat, tempLon };
return gps;
}

/**
* * 火星坐标系 (GCJ-02) 与百度坐标系 (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 double[] bd09_To_Gcj02(double lat, double lon) {
double x = lon - 0.0065, y = lat - 0.006;
double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
double tempLon = z * Math.cos(theta);
double tempLat = z * Math.sin(theta);
double[] gps = { tempLat, tempLon };
return gps;
}

/**
* 将gps84转为bd09 * @param lat * @param lon * @return
*/
public static double[] gps84_To_bd09(double lat, double lon) {
double[] gcj02 = gps84_To_Gcj02(lat, lon);
double[] bd09 = gcj02_To_Bd09(gcj02[0], gcj02[1]);
return bd09;
}

public static double[] bd09_To_gps84(double lat, double lon) {
double[] gcj02 = bd09_To_Gcj02(lat, lon);
double[] gps84 = gcj02_To_Gps84(gcj02[0], gcj02[1]); // 保留小数点后六位
gps84[0] = retain6(gps84[0]);
gps84[1] = retain6(gps84[1]);
return gps84;
}

/**
* 保留小数点后六位 * @param num * @return
*/
private static double retain6(double num) {
String result = String.format("%.6f", num);
return Double.valueOf(result);
}

// 测试
@SuppressWarnings("resource")
public static void main(String[] args) {

PreparedStatement ps = null;
Connection ct = null;
ResultSet rs = null;
int aa = 0;
try {
// 1.加载驱动
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
// 2.得到链接 127.0.0.1:1433
ct = DriverManager.getConnection("jdbc:sqlserver://192.168.1.252:1433;DatabaseName=shxchcap", "sa", "root");

ps = (PreparedStatement) ct.prepareStatement("select * from Pub_Division_Plus_copy");
rs = ps.executeQuery();
double longitude = 0;
double latitude = 0;
int num = 0;
if (rs != null) {

while (rs.next()) {
longitude = Double.parseDouble(rs.getString(1));
longitude = Double.parseDouble(rs.getString(14));
latitude = Double.parseDouble(rs.getString(15));
double[] latlog = gps84_To_Gcj02(latitude, longitude);
double d = latlog[0];
double e = latlog[1];
System.out.println(d + e);
// 修改纬度、经度
ct = DriverManager.getConnection("jdbc:sqlserver://192.168.1.252:1433;DatabaseName=shxchcap", "sa",
"root");
ps = (PreparedStatement) ct.prepareStatement("update Pub_Division_Plus_copy set latitude=" + d
+ ",longitude=" + e + "where UnitID=" + rs.getString(1));
num = ps.executeUpdate();
if (num > 0) {
System.out.println("修改成功");
}
aa++;
}
}
System.out.println(aa);
} catch (Exception e) {
e.printStackTrace();

} finally {
try {
if (rs != null)
rs.close();
if (ps != null)
ps.close();
if (ct != null)
ct.close();

} catch (Exception e) {
e.printStackTrace();
}
}
}

}

GPS小数坐标不精确转换标准形式

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