无聊中想想用java调用下听音乐的api。晚上很多文章用的比较老大方法了，都是用原生的代码写，而且不支持mp3格式，BasicPlayer第三方包提供了很好的api调用，简单的3行代码就可以调用mp3了。如果喜欢自己动手的，可以去BasicPlayer官网下载源代码，里面包含所需要的jar包和测试类。
先介紹下BasicPlayer。官方是这样介绍的：
BasicPlayer层是jlGui的简单播放器API。这些类被设计用于需要简单功能（播放，停止，暂停，恢复，寻找）播放音频文件或流的任何应用程序。它是JavaSound API的高级API。
官网地址：http://www.javazoom.net/jlgui/api.html
官方源代码中包含包有：
1：basicplayer3.0.jar
2：commons-logging-api.jar
3：jl1.0.jar
4：jogg-0.0.7.jar
5：jorbis-0.0.15.jar
6：jspeex0.9.7.jar
7：mp3spi1.9.4.jar （注意！这个版本如果出现了java.io.IOException: Resetting to invalid mark 这个错误，需要把版本更新到mp3spi1.9.5.jar就解决了）
8：tritonus_share.jar
vorbisspi1.0.2.jar
在测试前要确保网卡和音响或耳机正常，不然会提示一些莫名的错误哦。
下面贴出我测试成功的代码。如下
package fff; /*
* BasicPlayerTest.
*
* JavaZOOM : jlgui@javazoom.net
* http://www.javazoom.net
*
*-----------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/ import java.io.File;
import java.io.PrintStream;
import java.util.Map; import javazoom.jlgui.basicplayer.BasicController;
import javazoom.jlgui.basicplayer.BasicPlayer;
import javazoom.jlgui.basicplayer.BasicPlayerEvent;
import javazoom.jlgui.basicplayer.BasicPlayerException;
import javazoom.jlgui.basicplayer.BasicPlayerListener; /**
* This class implements a simple player based on BasicPlayer. BasicPlayer is a
* threaded class providing most features of a music player. BasicPlayer works
* with underlying JavaSound SPIs to support multiple audio formats. Basically
* JavaSound supports WAV, AU, AIFF audio formats. Add MP3 SPI (from JavaZOOM)
* and Vorbis SPI( from JavaZOOM) in your CLASSPATH to play MP3 and Ogg Vorbis
* file.
*/
public class BasicPlayerTest implements BasicPlayerListener {
private PrintStream out = null; /**
* Entry point.
*
* @param args
* filename to play.
* @throws Exception
*/
public static void main(String[] args) throws Exception {
BasicPlayerTest test = new BasicPlayerTest();
test.play("D:/xxx.mp3"); // //简单测试代码
// BasicPlayer player = new BasicPlayer();
// player.open(new File("D:/xxx.mp3"));
// player.play(); } /**
* Contructor.
*/
public BasicPlayerTest() {
out = System.out;
} public void play(String filename) {
// Instantiate BasicPlayer.
BasicPlayer player = new BasicPlayer();
// BasicPlayer is a BasicController.
BasicController control = (BasicController) player;
// Register BasicPlayerTest to BasicPlayerListener events.
// It means that this object will be notified on BasicPlayer
// events such as : opened(...), progress(...), stateUpdated(...)
player.addBasicPlayerListener(this); try {
// Open file, or URL or Stream (shoutcast) to play.
control.open(new File(filename));
// control.open(new URL("http://yourshoutcastserver.com:8000")); // Start playback in a thread.
control.play(); // Set Volume (0 to 1.0).
// setGain should be called after control.play().
control.setGain(0.85); // Set Pan (-1.0 to 1.0).
// setPan should be called after control.play().
control.setPan(0.0); // If you want to pause/resume/pause the played file then
// write a Swing player and just call control.pause(),
// control.resume() or control.stop().
// Use control.seek(bytesToSkip) to seek file
// (i.e. fast forward and rewind). seek feature will
// work only if underlying JavaSound SPI implements
// skip(...). True for MP3SPI (JavaZOOM) and SUN SPI's
// (WAVE, AU, AIFF). } catch (BasicPlayerException e) {
e.printStackTrace();
}
} /**
* Open callback, stream is ready to play.
*
* properties map includes audio format dependant features such as bitrate,
* duration, frequency, channels, number of frames, vbr flag, id3v2/id3v1
* (for MP3 only), comments (for Ogg Vorbis), ...
*
* @param stream
* could be File, URL or InputStream
* @param properties
* audio stream properties.
*/
public void opened(Object stream, Map properties) {
// Pay attention to properties. It's useful to get duration,
// bitrate, channels, even tag such as ID3v2.
display("opened : " + properties.toString());
} /**
* Progress callback while playing.
*
* This method is called severals time per seconds while playing. properties
* map includes audio format features such as instant bitrate, microseconds
* position, current frame number, ...
*
* @param bytesread
* from encoded stream.
* @param microseconds
* elapsed (<b>reseted after a seek !</b>).
* @param pcmdata
* PCM samples.
* @param properties
* audio stream parameters.
*/
public void progress(int bytesread, long microseconds, byte[] pcmdata,
Map properties) {
// Pay attention to properties. It depends on underlying JavaSound SPI
// MP3SPI provides mp3.equalizer.
display("progress : " + properties.toString());
} /**
* Notification callback for basicplayer events such as opened, eom ...
*
* @param event
*/
public void stateUpdated(BasicPlayerEvent event) {
// Notification of BasicPlayer states (opened, playing, end of media,
// ...)
display("stateUpdated : " + event.toString());
if (event.getCode() == BasicPlayerEvent.STOPPED) {
System.exit(0);
}
} /**
* A handle to the BasicPlayer, plugins may control the player through the
* controller (play, stop, ...)
*
* @param controller
* : a handle to the player
*/
public void setController(BasicController controller) {
display("setController : " + controller);
} public void display(String msg) {
if (out != null)
out.println(msg);
} }