java JTree 树形控件展示

package TreeView;

import java.awt.*;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import javax.swing.ImageIcon;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTree;

import javax.swing.LookAndFeel;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.DefaultTreeCellRenderer;

import javax.swing.tree.DefaultTreeModel;

import com.incors.plaf.alloy.AlloyLookAndFeel;

public class Tree {

public Tree(){

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);

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");

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());

JTree tree = new JTree(treeModel);

tree.setRowHeight(20);

DefaultTreeCellRenderer cellRenderer = (DefaultTreeCellRenderer) tree

.getCellRenderer();

cellRenderer.setLeafIcon(new ImageIcon("icons\\117.jpg"));

cellRenderer.setOpenIcon(new ImageIcon("icons\\117.jpg"));

cellRenderer.setClosedIcon(new ImageIcon("icons\\116.jpg"));

cellRenderer.setFont(new Font("宋体", Font.PLAIN, 12));// 设置字体.

cellRenderer.setBackgroundNonSelectionColor(Color.white);

cellRenderer.setBackgroundSelectionColor(Color.yellow);

cellRenderer.setBorderSelectionColor(Color.red);

/*

* 设置选时或不选时，文字的变化颜色

*/

cellRenderer.setTextNonSelectionColor(Color.black);

cellRenderer.setTextSelectionColor(Color.blue);

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) {

Tree tree =new Tree();

}

}

参考资料：

From：http://www.iteedu.com/plang/java/jtswingchxshj/57.php