geoserver pbf java 代码

以下是使用 Java 和 GeoTools 库将 PBF 文件发布到 GeoServer 的示例代码：

import org.geotools.data.DataStore;
import org.geotools.data.DataStoreFinder;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.data.simple.SimpleFeatureStore;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureIterator;
import org.geotools.geojson.feature.FeatureJSON;
import org.geotools.geometry.jts.JTSFactoryFinder;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.Point;
import org.locationtech.jts.geom.Polygon;
import org.locationtech.jts.io.ParseException;
import org.locationtech.jts.io.WKTReader;
import org.opengis.feature.Feature;
import org.opengis.feature.Property;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class PublishPBFToGeoServer {

    public static void main(String[] args) throws IOException, ParseException {
        // 定义 PBF 文件路径和 GeoServer 数据存储名称
        String pbfFilePath = "path/to/pbf/file.osm.pbf";
        String dataStoreName = "my_datastore";

        // 创建 DataStore 连接
        Map<String, Object> connectionParameters = new HashMap<>();
        connectionParameters.put("url", "http://localhost:8080/geoserver");
        connectionParameters.put("user", "admin");
        connectionParameters.put("passwd", "geoserver");
        connectionParameters.put("dbtype", "postgis");
        connectionParameters.put("encodeFunctions", "false");  // 针对 PostGIS

        DataStore dataStore = DataStoreFinder.getDataStore(connectionParameters);

        // 获取 PBF 文件中的数据
        File pbfFile = new File(pbfFilePath);
        FileInputStream inputStream = new FileInputStream(pbfFile);
        PbfReader reader = new PbfReader(inputStream);
        FeatureCollection features = reader.read();

        // 创建 FeatureType (根据 PBF 文件中的数据特征)
        SimpleFeatureType featureType = createFeatureType(features);

        // 创建数据存储
        dataStore.createSchema(featureType);

        // 获取 FeatureSource 和 FeatureStore
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(featureType.getTypeName());
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;

        // 将 FeatureCollection 转换为 SimpleFeature 并添加到数据存储中
        FeatureIterator iterator = features.features();
        while (iterator.hasNext()) {
            Feature feature = iterator.next();

            SimpleFeature simpleFeature = createSimpleFeature(feature, featureType);

            featureStore.addFeatures(DataUtilities.collection(simpleFeature));
        }

        // 发布数据存储到 GeoServer
        String workspaceName = "my_workspace";
        String storeTypeName = "my_store_type";

        dataStore.createSchema(featureType);

        Map<String, Object> storeParams = new HashMap<>();
        storeParams.put("namespace", workspaceName);
        storeParams.put("datastore", dataStoreName);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        dataStore.createSchema(featureType);

        Map<String, Object> layerParams = new HashMap<>();
        layerParams.put("layerName", featureType.getTypeName());
        layerParams.put("dataStore", storeParams);
        layerParams.put("style", "default_point");

        dataStore.createSchema(featureType);

        GeoServerRESTPublisher publisher = new GeoServerRESTPublisher("http://localhost:8080/geoserver", "admin", "geoserver");
        publisher.publishDBLayer(workspaceName, storeTypeName, layerParams);
    }

    private static SimpleFeatureType createFeatureType(FeatureCollection features) {
        SimpleFeatureType featureType;

        Feature firstFeature = features.features().next();
        GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory();

        if (firstFeature.getDefaultGeometry() instanceof Point) {
            featureType = DataUtilities.createType("my_namespace", "my_point_type",
                    "geometry:Point:srid=4326," + getAttributeFields(firstFeature));
        } else if (firstFeature.getDefaultGeometry() instanceof Polygon) {
            featureType = DataUtilities.createType("my_namespace", "my_polygon_type",
                    "geometry:Polygon:srid=4326," + getAttributeFields(firstFeature));
        } else {
            throw new RuntimeException("Unsupported geometry type: " + firstFeature.getDefaultGeometry().getClass());
        }

        return featureType;
    }

    private static String getAttributeFields(Feature feature) {
        StringBuilder sb = new StringBuilder();

        for (Property property : feature.getProperties()) {
            if (property.getName().getLocalPart().equals("geometry")) {
                continue;
            }

            sb.append(property.getName().getLocalPart()).append(":").append(property.getType().getBinding().getSimpleName()).append(",");
        }

        return sb.toString();
    }

    private static SimpleFeature createSimpleFeature(Feature feature, SimpleFeatureType featureType) throws ParseException {
        SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(featureType);

        for (Property property : feature.getProperties()) {
            if (property.getName().getLocalPart().equals("geometry")) {
                WKTReader wktReader = new WKTReader(JTSFactoryFinder.getGeometryFactory());
                Geometry geometry = wktReader.read(feature.getDefaultGeometryProperty().getValue().toString());
                featureBuilder.set("geometry", geometry);
            } else {
                featureBuilder.set(property.getName().getLocalPart(), property.getValue());
            }
        }

        return featureBuilder.buildFeature(null);
    }
}

这段代码假定您已经有了一个已安装和配置的 GeoServer 实例，并且已经创建了一个具有适当权限的用户。此外，您需要在项目中包含以下依赖项：

<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-epsg-hsql</artifactId>
    <version>21.1</version>
</dependency>

<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-pbf</artifactId>
    <version>21.1</version>
</dependency>

<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-geojson</artifactId>
    <version>21.1</version>
</dependency>

<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-shapefile</artifactId>
    <version>21.1</version>
</dependency>

<dependency>
    <groupId>org.geoserver</groupId>
    <artifactId>gs-restconfig</artifactId>
    <version>2.16.2</version>
</dependency>