实现想windows下的文件管理器(主要是监听器里的方法,showDir()写法)
package com.mywindow.test; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.io.File; import javax.swing.JButton; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.SwingUtilities; import javax.swing.WindowConstants; /** * This code was edited or generated using CloudGarden's Jigloo * SWT/Swing GUI Builder, which is free for non-commercial * use. If Jigloo is being used commercially (ie, by a corporation, * company or business for any purpose whatever) then you * should purchase a license for each developer using Jigloo. * Please visit www.cloudgarden.com for details. * Use of Jigloo implies acceptance of these licensing terms. * A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR * THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED * LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE. */ public class NewJFrame extends javax.swing.JFrame { private static final String LINE_SEPARATOR = System.getProperty("line.separator"); private JTextField jTextField1; private JButton jButton1; private JTextArea jTextArea1; /** * Auto-generated main method to display this JFrame */ public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { NewJFrame inst = new NewJFrame(); inst.setLocationRelativeTo(null); inst.setVisible(true); } }); } public NewJFrame() { super(); initGUI(); } private void initGUI() { try { setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); getContentPane().setLayout(null); { jTextField1 = new JTextField(); getContentPane().add(jTextField1, "Center"); jTextField1.setBounds(12, 27, 268, 27); jTextField1.addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent evt) { jTextField1KeyPressed(evt); } }); } { jButton1 = new JButton(); getContentPane().add(jButton1); jButton1.setText("u8f6cu5230"); jButton1.setBounds(292, 28, 76, 24); jButton1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { jButton1ActionPerformed(evt); } }); } { jTextArea1 = new JTextArea(); getContentPane().add(jTextArea1); jTextArea1.setBounds(12, 65, 356, 185); } pack(); setSize(400, 300); } catch (Exception e) { //add your error handling code here e.printStackTrace(); } } //Button的活动监听器 private void jButton1ActionPerformed(ActionEvent evt) { showDir(); } private void showDir() { /* * 通过点击按钮获取文本框目录 * 将目录中的内容显示到文本区域中 * */ String dir_str = jTextField1.getText(); File dir = new File(dir_str); if(dir.exists() && dir.isDirectory()){ jTextArea1.setText(""); String[] names = dir.list(); for(String name : names){ jTextArea1.append(name+LINE_SEPARATOR); } } } private void jTextField1KeyPressed(KeyEvent evt) { if(evt.getKeyCode()==KeyEvent.VK_ENTER){ showDir(); } } }