java 在 JTree 中获取节点
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Getting a node in JTree
提问by user489041
Simple question. I have a TreePath to a node in my JTree. How can I convert this TreePath to the DefaultMutableTreeNode the TreePath points too?
简单的问题。我的 JTree 中有一个指向节点的 TreePath。如何将此 TreePath 转换为 TreePath 指向的 DefaultMutableTreeNode ？
回答by dontocsata
You should be able to call getLastPathComponenton the TreePathand cast that for a TreeNodeor DefaultMutableTreeNodeand be good to go.
你应该能够调用getLastPathComponent在TreePath和演员，其中一个TreeNode还是DefaultMutableTreeNode和好到哪里去。
请参阅：http: //download.oracle.com/javase/6/docs/api/javax/swing/tree/TreePath.html#getLastPathComponent%28%29
回答by Howard
If your treemodel consists of DefaultMutableTreeNodes you may just use
node=(DefaultMutableTreeNode)path.getLastPathComponent();
如果您的树模型由 DefaultMutableTreeNodes 组成，您可以使用
node=(DefaultMutableTreeNode)path.getLastPathComponent();
回答by Alobes5
model is a DefaultTreeModel
模型是一个 DefaultTreeModel
private TreePath getTreePath(TreeNode node) {
TreeNode[] nodes = model.getPathToRoot(node);
TreePath path = new TreePath(nodes);
return path;
}
