java 实现音乐播放器的简单实例

java 实现音乐播放器的简单实例

实现效果图：

代码如下

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package cn.hncu.games;

import java.applet.applet;

import java.applet.audioclip;

import java.awt.color;

import java.awt.font;

import java.awt.event.mouseadapter;

import java.awt.event.mouseevent;

import java.awt.event.mouselistener;

import java.io.file;

import java.net.url;

import javax.swing.defaultlistmodel;

import javax.swing.imageicon;

import javax.swing.jbutton;

import javax.swing.jframe;

import javax.swing.jlabel;

import javax.swing.jlist;

import javax.swing.listmodel;

import javax.swing.event.listselectionevent;

import javax.swing.event.listselectionlistener;

public class musicplayer extends jframe{

//显示(歌曲名称)播放状态的标签

jlabel songnamelabel = null;

//四个播放功能键按钮

jbutton btnlast = null; //上一曲

jbutton btnplay = null; //播放/停止

jbutton btnnext = null; //下一曲

jbutton btnloop = null; //循环

//歌曲列表

jlist songslist = null;

audioclip songs[] = null;

audioclip currentsong = null;

int index=0; //当前歌曲在jlist中的位置(序号)

//歌曲文件名数组---string

string[] strsongnames={ "song1.wav","song2.wav","song3.wav","song4.wav","song5.wav","song6.wav" };

final string dir="songs\\\\";

//播放音乐的线程

thread playerthread=null;

boolean isplayorstop = true;//true代表播放状态

boolean isloop = false; //是否为循环状态

public musicplayer() {

super("音乐播放器");

setbounds(300, 50, 310, 500);

setdefaultcloseoperation(exit_on_close);

setlayout(null);

//hello();

//显示(歌曲名称)播放状态的标签

songnamelabel = new jlabel();

font songnamefont = new font("黑体",font.italic,18);

songnamelabel.setfont(songnamefont);

songnamelabel.settext("我的音乐播放器");

songnamelabel.setbounds(10, 10, 300, 40);

getcontentpane().add(songnamelabel);

//四个播放功能键按钮

btnlast = new jbutton();

btnplay = new jbutton();

btnnext = new jbutton();

btnloop = new jbutton();

//位置大小

btnlast.setbounds(10, 70, 50, 40);

btnplay.setbounds(70, 70, 50, 40);

btnnext.setbounds(130, 70, 50, 40);

btnloop.setbounds(190, 70, 50, 40);

//设置图片

btnlast.seticon( new imageicon("images2/1.png"));

btnplay.seticon( new imageicon("images2/2.png"));

btnnext.seticon( new imageicon("images2/3.png"));

btnloop.seticon( new imageicon("images2/4.png"));

//添加到框架

getcontentpane().add(btnlast);

getcontentpane().add(btnplay);

getcontentpane().add(btnnext);

getcontentpane().add(btnloop);

//添加监听

mymouselistener mml = new mymouselistener();

btnlast.addmouselistener(mml);

btnplay.addmouselistener(mml);

btnnext.addmouselistener(mml);

btnloop.addmouselistener(mml);

//歌曲列表的标题

jlabel listlabel = new jlabel("播放列表");

listlabel.setbounds(10, 120, 100, 30);

font listlabelfont = new font("黑体",font.bold,16);

listlabel.setfont(listlabelfont);

getcontentpane().add(listlabel);

//歌曲列表

/*

songslist = new jlist();

songslist.setbounds(10, 150, 250, 300);

songslist.setbackground(color.cyan);

//把所有歌曲名逐个添加到list中

//songslist.setlistdata(strsongnames);

for(int i=0;i<strsongnames.length;i++){

defaultlistmodel dm = (defaultlistmodel)songslist.getmodel();

dm.add(i,strsongnames[i]);

}

getcontentpane().add(songslist);

*/

defaultlistmodel lm = new defaultlistmodel();

songslist = new jlist(lm);

songslist.setbounds(10, 150, 250, 300);

songslist.setbackground(color.cyan);

//把所有歌曲名逐个添加到list中

//songslist.setlistdata(strsongnames);

songs = new audioclip[strsongnames.length];

for(int i=0;i<strsongnames.length;i++){

lm.add(i,strsongnames[i]);

songs[i] = loadsound(strsongnames[i]);

}

getcontentpane().add(songslist);

//lm.remove(3);

//对jlist控件的监听技术实现

songslist.addlistselectionlistener(new listselectionlistener() {

@override

public void valuechanged(listselectionevent e) {

currentsong.stop();

index = songslist.getselectedindex();

isplayorstop = true;

playerthread = new thread( new musicrun() );

playerthread.start();

}

});

//单开一个线程，专用于播放音乐

playerthread = new thread( new musicrun() );

playerthread.start();

setvisible(true);

}

private audioclip loadsound(string filename) {

try {

url url = new url("file:songs\\\\"+filename);

audioclip au = applet.newaudioclip(url);

return au;

} catch (exception e) {

e.printstacktrace();

}

return null;

}

//讲解音乐播放的基本技术

private void hello() {

try {

file f = new file("songs\\\\song1.wav");

url url = f.touri().tourl();

//url url = new url("file:songs\\\\song1.wav");

audioclip au = applet.newaudioclip(url);

au.play();

//au.loop();

//au.stop();

} catch (exception e) {

e.printstacktrace();

}

private class mymouselistener extends mouseadapter{

@override

public void mouseclicked(mouseevent e) {

jbutton btn = (jbutton) e.getsource();

currentsong.stop();

if(btn==btnplay){

isplayorstop = !isplayorstop;

}else if(btn==btnlast){

index--;

if(index<0){

index = strsongnames.length-1;

}

//isplayorstop=true;

}else if(btn==btnnext){

index++;

index = index%strsongnames.length;

}else if(btn==btnloop){

isloop = !isloop;

}

if(isplayorstop){//播放

playerthread = new thread( new musicrun() );

playerthread.start();

}else{//停止

songslist.setselectedindex(index);

songnamelabel.settext("停止播放:"+strsongnames[index]);

btnplay.seticon( new imageicon("images2/2.png"));

}

private class musicrun implements runnable{

@override

public void run() {

currentsong = songs[index];

if(isloop){

currentsong.loop();

songnamelabel.settext("循环播放:"+strsongnames[index]);

}

if (isplayorstop) {

currentsong.play();

}

//在播放列表中选定当前歌曲

songslist.setselectedindex(index);

//把播放按钮的图标切换成“停止”

btnplay.seticon( new imageicon("images2/5.png"));

if(!isloop){

songnamelabel.settext("正在播放:"+strsongnames[index]);

}

public static void main(string[] args) {

new musicplayer();

}

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原文链接：http://blog.csdn.net/weixin_37720904/article/details/71743170

java 实现音乐播放器的简单实例

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