怎样删除JTree节点

Question

节点是从数据库读出来的，怎么删除选中的JTree节点呢？？？？？？？？？？

Answer 1

楼主的意思是无法获得treemodel?

Answer 2

给你个例子吧，removeCurrentNode方法就可以移除当前选中节点 DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("");
DefaultTreeModel treeModel = new DefaultTreeModel(rootNode);
JTree jTree = new JTree(treeModel);

public void removeCurrentNode() {
TreePath currentSelection = jTree.getSelectionPath();
if (currentSelection != null) {
DefaultMutableTreeNode currentNode = (DefaultMutableTreeNode) (currentSelection
.getLastPathComponent());
MutableTreeNode parent = (MutableTreeNode) (currentNode.getParent());
if (parent != null) {
treeModel.removeNodeFromParent(currentNode);
return;
}
}
}

Answer 3

用我这个方法，根节点是无法删除的
可以这样试试
public void removeCurrentNode() {
TreePath currentSelection = jTree.getSelectionPath();
if (currentSelection != null) {
DefaultMutableTreeNode currentNode = (DefaultMutableTreeNode) (currentSelection
.getLastPathComponent());
treeModel.removeNodeFromParent(currentNode);
}
}