java使用插件播放mp3,同时只播放一首歌

再次学习synchronized的使用，实现一个mp3的简易播放

其中使用的插件是jl1.0.1.jar，在哪下我就懒的搜了。主要还是记录一下synchronized的使用，加强印象。

因为只同步了其中的播放方法，所以没被同步的会被先执行。

package other;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Calendar;
import java.util.Locale;

import javazoom.jl.decoder.JavaLayerException;
import javazoom.jl.player.Player;

public class MediaTest {
	private long timeTarget;
	private long time;
	private Player player;
	int[][] dateValue = {{2017,11,05,13,52,10},{2017,11,05,13,57,10}}; 
	private static String musicDirectory = "D:/CloudMusic/";
	private static String[] musicPath = {musicDirectory+"谢容儿 - 你不配.mp3",musicDirectory+"艾敬 - 做你的雪莲.mp3"};
	public void Mp3(String audio) throws JavaLayerException{
		try{
			BufferedInputStream buff = new BufferedInputStream(new FileInputStream(audio));
			player = new Player(buff);
			Thread t = new Thread(()->{
				System.out.println(Thread.currentThread().getName()+"播放中" + audio);
				try {
					synchronized(this){
						System.out.println("进入线程同步，等待播放完当前这首歌才播放下一首");
						player.play();
						
					}
				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			});
		t.start();
		System.out.println("线程已启动");
		
		}catch(IOException io){
			io.printStackTrace();
		}
	}
	public void alarmPlay(String[] musicPath) throws InterruptedException, JavaLayerException{
		Calendar c = Calendar.getInstance(Locale.CHINA);
		time = System.currentTimeMillis();
		System.out.println("没设置指定日期之前："+time);
		//设置目标时间，只有月是0-11
//		c.set(2017, 11, 05, 13, 25, 10);
		for(int i=0; i< dateValue.length; i++){
			c.set(dateValue[i][0], dateValue[i][1], dateValue[i][2], dateValue[i][3], dateValue[i][4], dateValue[i][5]);
			timeTarget = c.getTimeInMillis();
			System.out.println("设置指定日期之后"+timeTarget);
			while(true){
				time = System.currentTimeMillis();
				if(time < timeTarget){
					
					Thread.sleep(10000L);
					System.out.println("距离指定时间还差"+(timeTarget -(time+10000L))/1000+"s");
				}else{
					System.out.println("else中的："+time);
					System.out.println(c.get(Calendar.YEAR) +"-"+ (c.get(Calendar.MONTH)+1) +"-"+
					c.get(Calendar.DATE)+" " + c.get(Calendar.HOUR_OF_DAY)+":" + c.get(Calendar.MINUTE)+":"
					+c.get(Calendar.SECOND));
					Mp3(musicPath[i]);
					break;
				}
				
			}
		
		}
	}
	public static void main(String[] args) throws InterruptedException, JavaLayerException {
		MediaTest mt = new MediaTest();
		mt.alarmPlay(musicPath);
	}
}