1，pom依赖

<dependency><groupId>org.geotools</groupId><artifactId>gt-referencing</artifactId><version>24.0</version>
</dependency>

2，单元测试

import org.geotools.data.shapefile.ShapefileDataStore;
import org.geotools.data.shapefile.ShapefileDataStoreFactory;
import org.geotools.referencing.CRS;
import org.junit.Test;
import org.opengis.referencing.FactoryException;
import org.opengis.referencing.crs.CoordinateReferenceSystem;import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.nio.charset.Charset;public class ShpUtils {/*** 获取Shape文件的坐标系信息。** @param shpFilePath shp文件路径* @return 坐标系的WKT形式*/public static Integer getCoordinateSystemWKT(String shpFilePath) throws FactoryException {ShapefileDataStore dataStore = buildDataStore(shpFilePath);try {CoordinateReferenceSystem srs = dataStore.getSchema().getCoordinateReferenceSystem();System.out.println(srs.toWKT());Integer epsg = CRS.lookupEpsgCode(srs, true);return epsg;} catch (UnsupportedOperationException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {dataStore.dispose();}return 4490;}/*** 构建ShapeDataStore对象。** @param shpFilePath shape文件路径。* @return*/public static ShapefileDataStore buildDataStore(String shpFilePath) {ShapefileDataStoreFactory factory = new ShapefileDataStoreFactory();try {ShapefileDataStore dataStore = (ShapefileDataStore) factory.createDataStore(new File(shpFilePath).toURI().toURL());if (dataStore != null) {dataStore.setCharset(Charset.forName("UTF-8"));}return dataStore;} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return null;}/*** 查询shp文件的坐标系**/@Testpublic void test() throws FactoryException {String pathName = "D:\\测试文件\\shp\\xxxxx\\绿地.shp";Integer epsg = getCoordinateSystemWKT(pathName);System.out.println("EPSG:" + epsg);}
}

3，执行结果

GEOGCS["China Geodetic Coordinate System 2000", DATUM["D_China_2000", SPHEROID["CGCS2000", 6378137.0, 298.257222101]], PRIMEM["Greenwich", 0.0], UNIT["degree", 0.017453292519943295], AXIS["Longitude", EAST], AXIS["Latitude", NORTH]]
EPSG:4490