Jbuilder 2005中JTree的结点怎么更改啊?大家帮忙啊,谢谢啊!
Jbuilder 2005中JTree的结点怎么更改啊?大家帮忙啊,谢谢啊! 问题点数：20、回复次数：4Top
1 楼ilsuq（）回复于 2005-04-21 08:04:27 得分 0
大家帮帮忙啊Top
2 楼crazer2003（）回复于 2005-04-21 20:26:27 得分 0
你是要怎么更改啊 说清楚点拉Top
3 楼ilsuq（）回复于 2005-04-22 21:00:16 得分 0
就是添加我想要的新节点啊，应该怎么做啊？Top
4 楼crazer2003（）回复于 2005-04-23 12:46:53 得分 20
你是要动态的创建结点是嘛我给你段程序给你看看
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import com.incors.plaf.alloy.*;//组件的下载网址http://www.incors.com/lookandfeel/
/*将alloy.jar放在c:\j2sdk1.4.0\jre\lib\ext\目录下.
*/
public class TreeDemo3
{
public TreeDemo3()
{
JFrame f = new JFrame("TreeDemo");
Container contentPane = f.getContentPane();
DefaultMutableTreeNode root = new DefaultMutableTreeNode("资源管理器");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("我的公文包");
DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("我的电脑");
DefaultMutableTreeNode node3 = new DefaultMutableTreeNode("收藏夹");
DefaultMutableTreeNode node4 = new DefaultMutableTreeNode("Readme");
DefaultTreeModel treeModel = new DefaultTreeModel(root);
/*DefaultTreeModel类所提供的insertNodeInto()方法加入节点到父节点的数量.
*利用DefaultMutableTreeNode类所提供的getChildCount()方法取得目前子节点的数量.
*/
treeModel.insertNodeInto(node1, root, root.getChildCount());
treeModel.insertNodeInto(node2, root, root.getChildCount());
treeModel.insertNodeInto(node3, root, root.getChildCount());
treeModel.insertNodeInto(node4, root, root.getChildCount());
DefaultMutableTreeNode leafnode = new
DefaultMutableTreeNode("公司文件");
//DefaultTreeModel类所提供的insertNodeInto()方法加入节点到父节点的数量.
treeModel.insertNodeInto(leafnode, node1, node1.getChildCount());
leafnode = new DefaultMutableTreeNode("个人信件");
treeModel.insertNodeInto(leafnode, node1, node1.getChildCount());
leafnode = new DefaultMutableTreeNode("私人文件");
treeModel.insertNodeInto(leafnode, node1, node1.getChildCount());
leafnode = new DefaultMutableTreeNode("本机磁盘(C:)");
treeModel.insertNodeInto(leafnode, node2, node2.getChildCount());
leafnode = new DefaultMutableTreeNode("本机磁盘(D:)");
treeModel.insertNodeInto(leafnode, node2, node2.getChildCount());
leafnode = new DefaultMutableTreeNode("本机磁盘(E:)");
treeModel.insertNodeInto(leafnode, node2, node2.getChildCount());
DefaultMutableTreeNode node31 = new DefaultMutableTreeNode("网站列表");
treeModel.insertNodeInto(node31, node3, node3.getChildCount());
leafnode = new DefaultMutableTreeNode("奇摩站");
treeModel.insertNodeInto(leafnode, node3, node3.getChildCount());
leafnode = new DefaultMutableTreeNode("职棒消息");
treeModel.insertNodeInto(leafnode, node3, node3.getChildCount());
leafnode = new DefaultMutableTreeNode("网络书店");
treeModel.insertNodeInto(leafnode, node3, node3.getChildCount());
try {
LookAndFeel alloyLnF = new AlloyLookAndFeel();
UIManager.setLookAndFeel(alloyLnF);
} catch (UnsupportedLookAndFeelException ex) {
// You may handle the exception here
}
// this line needs to be implemented in order to make JWS work properly
UIManager.getLookAndFeelDefaults().put("ClassLoader", getClass().getClassLoader());
//以TreeModel建立JTree。
JTree tree = new JTree(treeModel);
/*改变JTree的外观**/
tree.putClientProperty("JTree.lineStyle","Horizontal");
/*改变JTree的外观**/
JScrollPane scrollPane = new JScrollPane();
scrollPane.setViewportView(tree);
contentPane.add(scrollPane);
f.pack();
f.setVisible(true);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public static void main(String args[]) {
new TreeDemo3();
}
}
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