一个简单的Java音乐播放器_Java教程

本文实例为大家分享了Java 音乐播放器展示的具体代码，供大家参考，具体内容如下

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									package KKMusic;

									 import java.applet.Applet;

									 import java.applet.AudioClip;

									 import java.awt.BorderLayout;

									 import java.awt.EventQueue;

									 import javax.swing.JFrame;

									 import javax.swing.JPanel;

									 import javax.swing.border.EmptyBorder;

									 import java.awt.CardLayout;

									 import javax.swing.JButton;

									 import javax.swing.JFileChooser;

									 import javax.sound.sampled.FloatControl;

									 import javax.sound.sampled.SourceDataLine;

									 import javax.swing.GroupLayout;

									 import javax.swing.GroupLayout.Alignment;

									 import java.awt.event.ActionListener;

									 import java.awt.event.ActionEvent;

									 import javax.swing.LayoutStyle.ComponentPlacement;

									 import javax.swing.JMenuBar;

									 import javax.swing.JMenuItem;

									 import java.awt.event.ItemListener;

									 import java.io.File;

									 import java.net.MalformedURLException;

									 import java.net.URL;

									 import java.awt.event.ItemEvent;

									 import javax.swing.JMenu;

									 import javax.swing.JTextField;

									 import javax.swing.SwingConstants;

									 import javax.swing.JSlider;

									 import java.awt.event.MouseMotionAdapter;

									 import java.awt.event.MouseEvent;

									public class Mp3 extends JFrame {

									private JPanel contentPane;

									 File file;//声明文件对象

									 String filename;

									 JFileChooser chooser=new JFileChooser();//创建一个文件选择器

									 private JTextField xiaoxi;

									 boolean loop=false;

									 AudioClip adc;//声音音频剪辑对象

									 SourceDataLine line;

									 private FloatControl volume = null;

									 /**

									 * Launch the application.

									 */

									 public static void main(String[] args) {

									 EventQueue.invokeLater(new Runnable() {

									 public void run() {

									 try {

									 Mp3 frame = new Mp3();

									 frame.setVisible(true);

									 } catch (Exception e) {

									 e.printStackTrace();

									 }

									 }

									 });

									 }

									/**

									 * Create the frame.

									 */

									 public Mp3() {

									 setTitle("\u97F3\u4E50\u64AD\u653E\u5668");

									 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

									 setBounds(100, 100, 265, 333);

									JMenuBar menuBar = new JMenuBar();

									 setJMenuBar(menuBar);

									JMenu mnNewMenu = new JMenu("\u6587\u4EF6");

									 menuBar.add(mnNewMenu);

									 xiaoxi = new JTextField();

									 xiaoxi.setColumns(10);

									 xiaoxi.setText("欢迎使用本播放器");

									 JMenuItem dakai = new JMenuItem("\u6253\u5F00");

									 dakai.addActionListener(new ActionListener() {

									 public void actionPerformed(ActionEvent e) {

									 int value=chooser.showOpenDialog(chooser);//接受文件选择器的状态

									 if(value==chooser.APPROVE_OPTION){

									 file=chooser.getSelectedFile();//返回选中文件

									 filename=file.getName();

									 String flag=filename;

									 xiaoxi.setText(flag);

									 try {

									 if(adc!=null)

									 adc.stop();

									 URL url=new URL("file:"+file.getPath());//创建资源定位

									 adc=Applet.newAudioClip(url);

									 //adc.play();

									} catch (MalformedURLException e1) {

									 // TODO Auto-generated catch block

									 e1.printStackTrace();

									 System.out.println("不能播放！");

									 }

									 }

									 }

									 });

									 mnNewMenu.add(dakai);

									JMenuItem tuichu = new JMenuItem("\u9000\u51FA");

									 tuichu.addActionListener(new ActionListener() {

									 public void actionPerformed(ActionEvent e) {

									 dispose();

									 if(adc!=null)

									 adc.stop();

									 return ;

									 }

									 });

									mnNewMenu.add(tuichu);

									 contentPane = new JPanel();

									 contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

									 setContentPane(contentPane);

									JButton playbtn = new JButton("\u64AD\u653E");

									 playbtn.setHorizontalAlignment(SwingConstants.LEFT);

									 playbtn.addActionListener(new ActionListener() {

									 public void actionPerformed(ActionEvent e) {

									 String flag="正在播放："+filename;

									 if(adc==null){

									 flag="请选择播放的音乐";

									 xiaoxi.setText(flag);

									 return;

									 }

									 adc.play();

									 xiaoxi.setText(flag);

									 }

									 });

									JButton stopbtn = new JButton("\u6682\u505C");

									 stopbtn.setHorizontalAlignment(SwingConstants.LEFT);

									 stopbtn.addActionListener(new ActionListener() {

									 public void actionPerformed(ActionEvent e) {

									 adc.stop();

									 String flag="停止播放音乐:"+filename;

									 xiaoxi.setText(flag);

									 }

									 });

									JButton againbtn = new JButton("\u5FAA\u73AF");

									 againbtn.setHorizontalAlignment(SwingConstants.LEFT);

									 againbtn.addActionListener(new ActionListener() {

									 public void actionPerformed(ActionEvent e) {

									 loop =!loop;

									 String flag="";

									 ; if(loop){

									 adc.play();

									 adc.loop();//循环播放

									 flag="循环播放:"+filename;

									 }

									  else{

									  adc.play();

									  flag="顺序播放"+filename;

									  }

									  xiaoxi.setText(flag);

									 }

									 });

									GroupLayout gl_contentPane = new GroupLayout(contentPane);

									 gl_contentPane.setHorizontalGroup(

									 gl_contentPane.createParallelGroup(Alignment.LEADING)

									 .addGroup(gl_contentPane.createSequentialGroup()

									 .addContainerGap()

									 .addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING, false)

									 .addComponent(xiaoxi, Alignment.LEADING)

									 .addGroup(Alignment.LEADING, gl_contentPane.createSequentialGroup()

									 .addComponent(playbtn, GroupLayout.PREFERRED_SIZE, 64, GroupLayout.PREFERRED_SIZE)

									 .addPreferredGap(ComponentPlacement.UNRELATED)

									 .addComponent(stopbtn, GroupLayout.PREFERRED_SIZE, 66, GroupLayout.PREFERRED_SIZE)

									 .addPreferredGap(ComponentPlacement.UNRELATED)

									 .addComponent(againbtn, GroupLayout.PREFERRED_SIZE, 64, GroupLayout.PREFERRED_SIZE)))

									 .addContainerGap(15, Short.MAX_VALUE))

									 );

									 gl_contentPane.setVerticalGroup(

									 gl_contentPane.createParallelGroup(Alignment.TRAILING)

									 .addGroup(gl_contentPane.createSequentialGroup()

									 .addComponent(xiaoxi, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)

									 .addPreferredGap(ComponentPlacement.UNRELATED)

									 .addPreferredGap(ComponentPlacement.RELATED, 173, Short.MAX_VALUE)

									 .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)

									 .addComponent(playbtn)

									 .addComponent(stopbtn)

									 .addComponent(againbtn))

									 .addContainerGap())

									 );

									 contentPane.setLayout(gl_contentPane);

									 }

									}