Java模仿系统的目录，有人做过吗

Question

Java模仿系统的目录，有人做过吗

Answer 1

java tree组件,
javascript tree组件？

Answer 2

用jtree实现import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;public class JTreeDemo1 implements TreeModelListener{ JLabel label = null;
String nodeName = null;//原有節點名稱
public JTreeDemo1(){
JFrame jf = new JFrame("JTreeDemo1");
Container contentPane = jf.getContentPane();

DefaultMutableTreeNode root = new DefaultMutableTreeNode("資源管理器");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("我的公文包");
DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("我的電腦");
DefaultMutableTreeNode node3 = new DefaultMutableTreeNode("收藏夾");
DefaultMutableTreeNode node4 = new DefaultMutableTreeNode("Readme");
root.add(node1);
root.add(node2);
root.add(node3);
root.add(node4);

DefaultMutableTreeNode leafnode = new DefaultMutableTreeNode("公司文件");
node1.add(leafnode);
leafnode = new DefaultMutableTreeNode("私人文件");
node1.add(leafnode);

leafnode = new DefaultMutableTreeNode("本機磁盤C");
node2.add(leafnode);
leafnode = new DefaultMutableTreeNode("本機磁盤D");
node2.add(leafnode);
leafnode = new DefaultMutableTreeNode("本機磁盤E");
node2.add(leafnode); leafnode = new DefaultMutableTreeNode("網站列表");
node3.add(leafnode);
leafnode = new DefaultMutableTreeNode("奇摩站");
node3.add(leafnode);
leafnode = new DefaultMutableTreeNode("網絡書店");
node3.add(leafnode);

JTree tree = new JTree(root);
tree.setEditable(true);//設置樹可編輯
tree.addMouseListener(new MouseHandle());
DefaultTreeModel treeModel = (DefaultTreeModel)tree.getModel();
treeModel.addTreeModelListener(this);

JScrollPane scrollPane = new JScrollPane();
scrollPane.getViewport().add(tree);
//scrollPane.setViewportview(tree);

label = new JLabel("更改數據為：");
contentPane.add(scrollPane,BorderLayout.CENTER);
contentPane.add(label,BorderLayout.SOUTH);
jf.pack();
jf.setVisible(true);
jf.addWindowListener(new WindowAdapter(){
@Override
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
@Override
public void treeNodesChanged(TreeModelEvent e){
TreePath treePath = e.getTreePath();
DefaultMutableTreeNode node = (DefaultMutableTreeNode)treePath.getLastPathComponent();//獲取樹枝節點
System.out.println("node:"+node);
try{
int[] index = e.getChildIndices();
System.out.println("枚舉子節點");
for(int i=0;i<index.length;i++){
System.out.println(index[i]);
}
node = (DefaultMutableTreeNode)node.getChildAt(index[0]);
System.out.println("node:"+node);
}catch(NullPointerException ne){
label.setText("發生空指針異常");
}
label.setText(nodeName+"更改數據為："+(String)node.getUserObject());
}
@Override
public void treeNodesInserted(TreeModelEvent e){

}
@Override
public void treeNodesRemoved(TreeModelEvent e){

}
@Override
public void treeStructureChanged(TreeModelEvent e){

}

class MouseHandle extends MouseAdapter{
@Override
public void mousePressed(MouseEvent e){
try{
JTree tree = (JTree)e.getSource();
int rowLocation = tree.getRowForLocation(e.getX(), e.getY());
System.out.println("row:"+rowLocation);
TreePath treePath = tree.getPathForRow(rowLocation);
TreeNode treeNode = (TreeNode)treePath.getLastPathComponent();
nodeName = treeNode.toString();
}catch(NullPointerException ne){
System.out.println("發生異常2");
}
}
}

public static void main(String...args){
new JTreeDemo1();
}
}http://lg-asus.iteye.com/blog/714992

Answer 3

在分享几个http://mxdxm.iteye.com/blog/966736http://www.iteye.com/topic/1105671学习下吧