用这样的列表视图说：
ListView<String> listView =new ListView<String>();
从ListView获取选定的元素：
listView.getSelectionModel().getSelectedItem();
跟踪（监听）列表视图选择中的更改：
listView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<String>() { @Override public void changed(Observablevalue<? extends String> observable, String oldValue, String newValue) { System.out.println("ListView selection changed from oldValue = " + oldValue + " to newValue = " + newValue); }});
