`1

13693261870

2023-02-10 b1ea876692238ceb68e6efc0b499ccaa41f23b4b

 src/main/java/com/lf/server/helper/ShpHelper.java

@@ -25,14 +25,21 @@
     * 读取Shp第一条记录的WKT
     */
    public static ShpRecordEntity readShpFirstRecord(String filePath) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("ESRI shapefile");
            if (driver == null) {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }

            DataSource dataSource = driver.Open(filePath);
            Layer layer = dataSource.GetLayer(0);
            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return null;
            }

            layer = dataSource.GetLayer(0);
            if (layer.GetFeatureCount() < 1) {
                return null;
            }
@@ -43,14 +50,12 @@
            Feature feature = layer.GetFeature(0);
            String wkt = feature.GetGeometryRef().ExportToWkt();

            layer.delete();
            dataSource.delete();
            driver.delete();

            return new ShpRecordEntity(wkt, csid);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }

@@ -58,15 +63,21 @@
     * 读取ShapeFile文件获取Mark实体类
     */
    public static List<MarkJsonEntity> readShpForMarks(String filePath) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("ESRI shapefile");
            if (driver == null) {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }

            DataSource dataSource = driver.Open(filePath);
            Layer layer = dataSource.GetLayer(0);
            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return null;
            }

            layer = dataSource.GetLayer(0);
            FeatureDefn featureDefn = layer.GetLayerDefn();
            Map<Integer, Field> fieldMap = new HashMap(5);
            for (int i = 0, count = featureDefn.GetFieldCount(); i < count; i++) {
@@ -85,40 +96,47 @@
                return null;
            }

            List<MarkJsonEntity> list = new ArrayList<MarkJsonEntity>();
            for (int i = 0; i < count; i++) {
                Feature f = layer.GetFeature(i);
                MarkJsonEntity me = new MarkJsonEntity(i + 1);
                for (Integer key : fieldMap.keySet()) {
                    Field field = fieldMap.get(key);
                    switch (field.getType().toString()) {
                        case "double":
                            field.set(me, f.GetFieldAsDouble(i));
                            break;
                        case "long":
                            field.set(me, f.GetFieldAsInteger64(i));
                            break;
                        case "int":
                            field.set(me, f.GetFieldAsInteger(i));
                            break;
                        default:
                            field.set(me, f.GetFieldAsString(i));
                            break;
                    }
                }
                me.setWkt(f.GetGeometryRef().ExportToWkt());

                list.add(me);
            }

            layer.delete();
            driver.delete();

            return list;
            return setMarkJsonEntity(layer, fieldMap);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }

    /**
     * 设置标绘实体类
     */
    private static List<MarkJsonEntity> setMarkJsonEntity(Layer layer, Map<Integer, Field> fieldMap) throws Exception {
        List<MarkJsonEntity> list = new ArrayList<MarkJsonEntity>();
        for (int i = 0; i < layer.GetFeatureCount(); i++) {
            Feature f = layer.GetFeature(i);

            MarkJsonEntity me = new MarkJsonEntity(i + 1);
            for (Integer key : fieldMap.keySet()) {
                Field field = fieldMap.get(key);
                switch (field.getType().toString()) {
                    case "double":
                        field.set(me, f.GetFieldAsDouble(i));
                        break;
                    case "long":
                        field.set(me, f.GetFieldAsInteger64(i));
                        break;
                    case "int":
                        field.set(me, f.GetFieldAsInteger(i));
                        break;
                    default:
                        field.set(me, f.GetFieldAsString(i));
                        break;
                }
            }
            me.setWkt(f.GetGeometryRef().ExportToWkt());

            list.add(me);
        }

        return list;
    }

    /**
@@ -130,21 +148,30 @@
     * @return ShapeFile文件名
     */
    public static String createShp(List<MarkJsonEntity> list, String path, String type) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("ESRI shapefile");
            if (driver == null) {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }

            String filePath = path + File.separator + type.toLowerCase() + ".shp";
            // DataSource ds = driver.Open(filePath, 0)
            DataSource ds = driver.CreateDataSource(filePath, null);
            dataSource = driver.CreateDataSource(filePath, null);
            if (null == dataSource) {
                return null;
            }

            SpatialReference sr = new SpatialReference();
            sr.ImportFromEPSG(4326);

            int geoType = getGeometryType(type);
            Layer layer = ds.CreateLayer(type.toLowerCase(), sr, geoType);
            layer = dataSource.CreateLayer(type.toLowerCase(), sr, geoType);
            if (null == layer) {
                return null;
            }

            FieldDefn fdName = new FieldDefn("name", ogr.OFTString);
            fdName.SetWidth(50);
@@ -167,14 +194,12 @@
                layer.CreateFeature(f);
            }

            layer.delete();
            ds.delete();
            driver.delete();

            return filePath;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }

@@ -193,4 +218,34 @@
                return -1;
        }
    }

    /**
     * 读取数据
     */
    public static <T> List<T> readData(Class clazz, String filePath) {
        List<T> list = new ArrayList<>();

        Driver driver = null;
        DataSource dataSource = null;
        try {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return list;
            }

            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return list;
            }

            Layer layer = dataSource.GetLayer(0);
            GdbHelper.readLayer(clazz, layer, list);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        } finally {
            GdbHelper.delete(dataSource, driver);
        }

        return list;
    }
}