java实现将WGS84经纬度转化为UTM zone 50N

以下是Java代码示例，使用Proj4J库将WGS84经纬度转换为UTM zone 50N：

import org.osgeo.proj4j.CoordinateReferenceSystem;
import org.osgeo.proj4j.CRSFactory;
import org.osgeo.proj4j.CoordinateTransform;
import org.osgeo.proj4j.ProjCoordinate;

public class WGS84toUTM50N {
    public static void main(String[] args) {
        // Define WGS84 coordinate system
        CRSFactory crsFactory = new CRSFactory();
        CoordinateReferenceSystem wgs84 = crsFactory.createFromName("EPSG:4326");
        
        // Define UTM zone 50N coordinate system
        CoordinateReferenceSystem utm50n = crsFactory.createFromName("EPSG:32650");
        
        // Create coordinate transform
        CoordinateTransform transform = new CoordinateTransform(wgs84, utm50n);
        
        // Define WGS84 longitude and latitude
        double lon = 121.5;
        double lat = 25.0;
        
        // Transform WGS84 to UTM zone 50N
        ProjCoordinate wgs84Coord = new ProjCoordinate(lon, lat);
        ProjCoordinate utm50nCoord = new ProjCoordinate();
        transform.transform(wgs84Coord, utm50nCoord);
        
        // Print UTM zone 50N coordinates
        System.out.println("UTM zone 50N X: " + utm50nCoord.x);
        System.out.println("UTM zone 50N Y: " + utm50nCoord.y);
    }
}

注意，这里使用EPSG代码来定义WGS84和UTM zone 50N坐标系统。如果您需要使用其他坐标系统，请查阅Proj4J文档并相应地修改代码。