java jl循环播放音乐,Java Jlayer Mp3 Player-如何重复和停止播放歌曲

淩亂°似流年 2022-08-29 14:55 327阅读 0赞

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I have problem with mp 3 player. I'm using jLayer.

This is my code

private void formWindowOpened(java.awt.event.WindowEvent evt) \{

new Thread ()\{

public void run()\{

try

Player prehravac;

FileInputStream buff = new FileInputStream(Okno.filename);

prehravac = new Player(buff);

prehravac.play();

if (prehravac != null)

prehravac.play();

catch(Exception e)

\}.start();

In my application I need to play song from the beginning to the end. So when song ends I need to start it again and when window closes I want to stop this song...

解决方案

JLayer does not support continuous play, so you have to use a loop to repeatedly start a new player after the old one finished. For example:

try

FileInputStream buff = new FileInputStream(Okno.filename);

prehravac = new AdvancedPlayer(buff );

prehravac .play();

\}while(loop);

catch(Exception ioe)

//TODO error handling

with loop being a boolean you can set true or false in a different method depending on if you want it to be played just once or repeatedly.

If you want to access the thread later you should at least declare it to a variable. Even better is writing a seperate class that extends thread. Doing so you can add method to the thread you can later call.

For your code it might look something like that:

import java.io.\*;

import javazoom.jl.player.\*;

public class MyAudioPlayer extends Thread \{

private String fileLocation;

private boolean loop;

private Player prehravac;

public MyAudioPlayer(String fileLocation, boolean loop) \{

this.fileLocation = fileLocation;

this.loop = loop;

public void run() \{

try \{

do \{

FileInputStream buff = new FileInputStream(fileLocation);

prehravac = new Player(buff);

prehravac.play();

\} while (loop);

\} catch (Exception ioe) \{

// TODO error handling

public void close()\{

loop = false;

prehravac.close();

this.interrupt();

With this you can simply create the Thread when and wherever you want like this:

private MyAudioPlayer thePlayer;

\[... some class code here...\]

public void yourMethod()\{

thePlayer = new MyAudioPlayer("path of the music file", true);

thePlayer.start();

and if you want to get rid of it at some point call thePlayer.close();

Note that thePlayer should be an instance variable so you can reuse it again. If you only declare it within a method it will disappear after the method is finished.

Hope this helps.

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