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package org.accp.explor; import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.Menu; import java.awt.MenuBar; import java.awt.MenuItem; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundExce 登录后复制 package org.accp.explor;import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.Menu;import java.awt.MenuBar;import java.awt.MenuItem;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.net.InetAddress;import java.net.UnknownHostException;import java.sql.Date;import javax.swing.*;import javax.swing.event.TreeSelectionEvent;import javax.swing.event.TreeSelectionListener;import javax.swing.table.AbstractTableModel;import javax.swing.table.DefaultTableModel;import javax.swing.tree.DefaultMutableTreeNode;import javax.swing.tree.TreePath;public class Test1 extends DefaultMutableTreeNode { private static final long serialVersionUID = 6999685634761062308L; private class MyFile {//这个内部类的用处在于在JTree节点的select发生时,对所选文件进行格式转化 private File file; public MyFile(File file) { this.file = file; } public String toString() { String name = file.getName().trim(); if (name.length() == 0) name = file.getAbsolutePath().trim(); return name; } } DefaultMutableTreeNode treeRoot; DefaultTableModel tableModel; JTable table; DefaultMutableTreeNode parent; Object[][] list = { {} }; public void treeMake() throws UnknownHostException { // 添加机器码&&构造界面 InetAddress local = InetAddress.getLocalHost(); treeRoot = new DefaultMutableTreeNode(local.getHostName()); final JTree tree = new JTree(treeRoot); JScrollPane scrolltree = new JScrollPane(tree); scrolltree.setPreferredSize(new Dimension(200, 300)); String[] row = { "文件", "类型", "最后修改日期" }; tableModel = new DefaultTableModel(list, row); table = new JTable(tableModel); JScrollPane scrollTable = new JScrollPane(table); scrollTable.setPreferredSize(new Dimension(500, 500)); MenuBar meb=new MenuBar(); Menu menuFile=new Menu("文件(F)"); Menu menuEdit=new Menu("编辑(E)"); Menu menuLook=new Menu("查看(V)"); meb.add(menuFile); MenuItem miFile=new MenuItem("打开"); menuFile.add(miFile); meb.add(menuEdit); MenuItem miEdit=new MenuItem("复制"); menuEdit.add(miEdit); meb.add(menuLook); MenuItem miLook=new MenuItem("工具栏"); menuLook.add(miLook); JFrame jf = new JFrame(); jf.add(BorderLayout.WEST, scrolltree); jf.add(BorderLayout.CENTER, scrollTable); jf.setSize(600, 600); jf.setVisible(true); jf.setMenuBar(meb); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 添加电脑本地硬盘 for (char i = 'c'; i String path = i + ":/"; if (((new File(path)).exists())) { DefaultMutableTreeNode diskNode = new DefaultMutableTreeNode( new MyFile(new File(path))); treeRoot.add(diskNode); readfiles(new File(path), diskNode); } } tree.addTreeSelectionListener(new TreeSelectionListener() {//添加listener public void valueChanged(TreeSelectionEvent arg0) { // TODO 自动生成方法存根 TreePath path = tree.getSelectionPath(); if (path == null) return; DefaultMutableTreeNode selectnode = (DefaultMutableTreeNode) path .getLastPathComponent(); if (!selectnode.isLeaf()) { // 这里加上类型判断 if (!(selectnode.getUserObject() instanceof MyFile)) { return; } File file_select = ((MyFile) selectnode.getUserObject()).file; // 读取文件夹下文件添加下层节点 readfiles(file_select, selectnode); DefaultMutableTreeNode firstchild = (DefaultMutableTreeNode) selectnode .getFirstChild(); selectnode.remove(firstchild); tableModel.setRowCount(0); File[] fileList = file_select.listFiles(); list = fu(fileList); for (int i = 0; i tableModel.addRow(list[i]); } } else { tableModel.setRowCount(0); try { File file_select = ((MyFile) selectnode.getUserObject()).file; String sizeFile=size(file_select); Object re[][]={{file_select.getName(),sizeFile,lastTime(file_select)}}; list=re; tableModel.addRow(list[0]); } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); } } } }); } public void readfiles(File file, DefaultMutableTreeNode node) {//读取所选节点,获取子节点 File list[] = file.listFiles(); if (list == null) return; for (int i = 0; i File file_inlist = list[i]; // String filename = file_inlist.getName(); if (file_inlist.isDirectory()) { parent = new DefaultMutableTreeNode(new MyFile(file_inlist)); // 添加空白文件夹节点 使子节点显示为文件夹 File stubadd = null; DefaultMutableTreeNode stub = new DefaultMutableTreeNode( stubadd); parent.add(stub); node.add(parent); } else { DefaultMutableTreeNode son = new DefaultMutableTreeNode( new MyFile(file_inlist)); node.add(son); } } } public String size(File file) throws IOException {//读取文件的大小 FileInputStream fileLength = new FileInputStream(file); String sizefile = fileLength.available() + "字节"; return sizefile; } public Date lastTime(File file) { long lastModified = file.lastModified();// 取得最后一次修改的时间 Date date = new Date(lastModified); date.setTime(lastModified); return date; } public Object[][] fu(File[] file) { Object[][] m = new Object[file.length][3]; for (int i = 0; i m[i][0] = file[i].getName(); try { // 这里有问题,如果是目录,怎么取大小?所以要用if // m[i][1] = size(file[i]); if (file[i].isDirectory()) { m[i][1] = "目录"; } else { m[i][1] = size(file[i]); } } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); } m[i][2] = lastTime(file[i]); } return m; } public int getColumnCount() { // TODO 自动生成方法存根 return 3; } public int getRowCount(File[] file) { // TODO 自动生成方法存根 return file.length; } public Object getValueAt(int row, int col) { // TODO 自动生成方法存根 return list[row][col]; } public static void main(String[] args) { // TODO Auto-generated method Test1 disk = new Test1(); try { disk.treeMake(); } catch (UnknownHostException e) { // TODO Auto-generated catch block e.printStackTrace(); } }} 09-10 19:35