Java调用开源GDAL解析dxf成shp，再调用开源GeoTools解析shp文件

dxf转shp代码片段：

import org.gdal.gdal.gdal;
import org.gdal.ogr.DataSource;
import org.gdal.ogr.Driver;
import org.gdal.ogr.Layer;
import org.gdal.ogr.ogr;

public String getDxfData() throws Exception{
            
            //dxf文件路径
            String filePath ="C:\\WorkSpace\\rect_field_demo.dxf";
            // 注册所有的驱动
            ogr.RegisterAll();
            gdal.SetConfigOption("DXF_ENCODING","UTF-8");
            gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8","YES");//支持中文路径
            gdal.SetConfigOption("SHAPE_ENCODING","CP936");//属性表字段支持中文
            DataSource ds = ogr.Open(filePath,1);
            if (ds == null)
            {
                System.out.println("打开文件失败！" );
                return null;
            }
            System.out.println("打开文件成功！" );
            Layer oLayer = ds.GetLayerByIndex(0);
            if(oLayer == null){
                System.out.println("获取失败");
                return null;
            }
            oLayer.ResetReading();
            Driver dv = ogr.GetDriverByName("ESRI Shapefile"); //调用驱动转shp
            String extfile = "C:\\WorkSpace\\rect_field_demo.shp";
            DataSource dataSource = dv.CopyDataSource(ds, extfile);//创建shp文件并写入内容
            dataSource.delete();    //释放与数据源对象关联的本机资源并关闭文件(这句非常重要，如果没有关闭文件，那么下面的解析shp就解析不了)
            String geometry = getShpData("C:\\WorkSpace\\rect_field_demo.shp",coordInfo);

            return geometry;

        }

解析shp文件

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.*;

import org.geotools.data.shapefile.ShapefileDataStore;
import org.opengis.feature.Property;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.geotools.data.FeatureSource;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureIterator;

public static String getShpData(String filePath) throws Exception {
        File file = new File(filePath);
        long fileSize = file.length();
        List<Map<String,Object>> list = new ArrayList<Map<String, Object>>();
        ShapefileDataStore shpDataStore = new ShapefileDataStore(file.toURL());
        shpDataStore.setStringCharset(Charset.forName("GBK"));
        String typeName = shpDataStore.getTypeNames()[0];
        FeatureSource<SimpleFeatureType, SimpleFeature> featureSource = null;
        featureSource = (FeatureSource<SimpleFeatureType, SimpleFeature>)shpDataStore.getFeatureSource(typeName);//这里我看了很多人的博客都没有指定类(FeatureSource<SimpleFeatureType, SimpleFeature>)，难道不会报错吗，反正我的会
        FeatureCollection<SimpleFeatureType, SimpleFeature> result = featureSource.getFeatures();

        FeatureIterator<SimpleFeature> itertor = result.features();
        while (itertor.hasNext())
        {
            Map<String,Object> data  = new HashMap<String, Object>();
            SimpleFeature feature = itertor.next();
            Collection<Property> p = feature.getProperties();
            Iterator<Property> it = p.iterator();
            while(it.hasNext()) {
                Property pro = it.next();
                String field = pro.getName().toString();
                String value = pro.getValue().toString();
                field = field.equals("the_geom")?"wkt":field;
                data.put(field, value);
            }
            list.add(data);
        }
        JSONArray jsonarray = JSONArray.fromObject(list);
        return jsonarray.toString();
    }