使用 geoTools 读取 Java (.dbf) 中的 ESRI Shapefile

Question

我试图从 java 中的 esri shapefile 中获取属性 table，但我只能使用 Geotools 库获取 header table？这是我的源代码：

        File dbfFile = new File("C:/Users/ilyasse2.0/Desktop/shapefiles/marocShp/mar_admbndp_admALL_unhcr_itos_20201203.dbf");
        FileInputStream fis = new FileInputStream(dbfFile);
        DbaseFileReader dbfReader = new DbaseFileReader(fis.getChannel(), false, Charset.forName("ISO-8859-1"));
        DbaseFileHeader dbfHeader = dbfReader.getHeader();
        System.out.println(dbfHeader.getRecordLength());
        List<String> names = new Vector<String>();
        int n = dbfHeader.getNumFields();
        for (int i = 0; i < n; i++) names.add(dbfHeader.getFieldName(i));
        System.out.println(names);

Answer 1

您需要使用 ShapefileDataStore 来读取 Shapefile，然后您可以遍历特征并提取属性。注意：该文件应以 .shp 结尾，GeoTools 将找到其他必要的文件。

List attributes = new ArrayList<>();
FileDataStore store = FileDataStoreFinder.getDataStore(file);
SimpleFeatureSource source = store.getFeatureSource();        
FeatureType schema = source.getSchema();

try(SimpleFeatureCollection features = source.getFeatures();SimpleFeatureIterator iterator =  featureCollection.features()) {
    while (iterator.hasNext()) {
        // copy the contents of each feature and transform the geometry
        SimpleFeature feature = iterator.next();
        attributes.add(feature.getAttributes());
     }

 }

使用 geoTools 读取 Java (.dbf) 中的 ESRI Shapefile

Read ESRI Shapefile in Java (.dbf) using geoTools

java

geotools