JavaFX Span Tableview按映射项合并单元格

你好，我有以下地图：

Map<String,ArrayList>

我已经尝试过几个CellValueFactory回调，但我不知道如何读取我的值，以及如何跨越或合并这些单元格

---

致以最诚挚的问候

我通过为第一列创建一个CellValueFactory解决了这个问题，在该列中我将ArrayList作为字符串抓取，因此：

    arrayListCol.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Map.Entry<PropertyDifference, DifferenceFileList>, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(TableColumn.CellDataFeatures<Map.Entry<PropertyDifference, DifferenceFileList>, String> p) {
            return new SimpleStringProperty(Arrays.toString(p.getValue().getValue().getFileList().toArray()));
        }
    });

这将处理列条目的值。现在我考虑了一种更进一步的表示形式，并为此使用了一个CellFactory，它随后对单元格进行格式化

    Callback<TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String>, TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>> tableCellList = new Callback<TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String>, TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>>() {
        @Override
        public TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String> call(TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String> param) {
            return new TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>() {
                @Override
                protected void updateItem(String item, boolean empty) {
                  if (item != null) {
                      item = item.replace("[", "") .replace("]", "");
                      ObservableList<String> items = FXCollections.observableArrayList(item.split(","));
                      final ListView<String> listView = new ListView<String>();

                      listView.setItems(items);

                      setGraphic(listView);
                  }
                }
            };
        }
    };

    arrayListCol.setCellFactory(tableCellList);

有什么不清楚的吗？->只是评论一下

|--------------|-----------|
|[e1,e2,e3]    | String e  |
|--------------|-----------|
|[x1,x2]       | String x  |
|--------------|-----------|

    Callback<TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String>, TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>> tableCellList = new Callback<TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String>, TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>>() {
        @Override
        public TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String> call(TableColumn<Map.Entry<PropertyDifference, DifferenceFileList>, String> param) {
            return new TableCell<Map.Entry<PropertyDifference, DifferenceFileList>, String>() {
                @Override
                protected void updateItem(String item, boolean empty) {
                  if (item != null) {
                      item = item.replace("[", "") .replace("]", "");
                      ObservableList<String> items = FXCollections.observableArrayList(item.split(","));
                      final ListView<String> listView = new ListView<String>();

                      listView.setItems(items);

                      setGraphic(listView);
                  }
                }
            };
        }
    };

    arrayListCol.setCellFactory(tableCellList);

setGraphic(listView);

|------|-----------|
|  e1  | String e  |
|  e2  |           |
|  e3  |           |
|------|-----------|
|  x1  | String x  |
|  x2  |           |
|------|-----------|