如何从JTable获取数据？

TableModel model = jTable.getModel();

int rowCount = model.getRowCount();
int columnCount = model.getColumnCount();

for (int row = 0; row < rowCount; row++) {
    for (int column = 0; column< columnCount; column++) {
        Object value = model.getValueAt(row, column);
        System.out.println("Row " + row + ", Column " + column + ": " + value);
    }
}

String value = (String) model.getValueAt(row, column);

List<Object> dataList = new ArrayList<>();
for (int row = 0; row < rowCount; row++) {
    for (int column = 0; column< columnCount; column++) {
        Object value = model.getValueAt(row, column);
        dataList.add(value);
    }
}