【GeoTools】判断shp文件的合法性

引入geotools依赖

        
        
            org.geotools
            gt-shapefile
            15.4
        

判断shape文件的合法性

总体思路：通过读取shp文件的几何类型和空间参考信息来判断合法性。如果都读取成功，则说明是合法的shp文件。（在某些场景下空间参考不是必须的）

    public static boolean isLegalShp(String shpPath) throws IOException {
        ShapefileDataStoreFactory factory = new ShapefileDataStoreFactory();
        try {
            FileDataStore dataStore = factory.createDataStore(new File(shpPath).toURI().toURL());
            GeometryDescriptor descriptor = dataStore.getFeatureSource().getSchema().getGeometryDescriptor();
            // 获取几何类型
            GeometryType type = descriptor.getType();
            // 获取空间参考信息
            CoordinateReferenceSystem coord = descriptor.getCoordinateReferenceSystem();
            if (type == null || coord == null) {
                log.error("incorrect shapefile");
                return false;
            }
            log.info("correct shapefile, geometry type:{}, coordinate system:{}", type.getName(), coord.getCoordinateSystem());
            return true;
        } catch (IOException e) {
            log.error("get shp url error", e);
            return false;
        }
    }