Flex4/Flash开发在线音乐播放器 , 含演示地址

2022-09-19 20:23:15

要求

必备知识

本文要求基本了解 Adobe Flex编程知识和JAVA基础知识。
开发环境

MyEclipse10/Flash Builder4.6/Flash Player11及以上
演示地址

演示地址

传统网络程序的开发是基于页面的、服务器端数据传递的模式，把网络程序的表现层建立于HTML页面之上，而HTML是适合于文本的，传统的基于页面的系统已经渐渐不能满足网络浏览者的更高的、全方位的体验要求了。而富互联网应用（Rich Internet Applications，缩写为RIA）的出现就是为了解决这个问题。在HTML5发布以前，RIA领域的技术解决方案一直相都是各展所长，并无争议。Adobe体系中，Flash做不了的事情，Flex可以做到；.Net系决策者在选用RIA解决方案时，Silverlight是不二之选。随着HTML 5横空出世，Flex“易主”(这里说的是Adobe将Flex捐给Apache)，Silverlight被“雪藏”(这里指微软停止对Silverlight的更新)，RIA领域的技术解决方案开始变得扑朔迷离。 HTML 5无疑是“明日之星”，苹果公司前CEO乔布斯对它赞赏有加，绝大多数智能手机浏览器均支持HTML 5，基于HTML 5的网站也如雨后春笋般出现。这些似乎预示着HTML 5时代来临，人们试图让决策者相信，Flash/Flex时代已经过去了，HTML 5才是RIA领域的最佳解决方案。那到底真相会是什么呢? HTML 5其实也存在许多劣势，并不完美。HTML 5的浏览器兼容性问题(由于国内传统IE浏览器占了相当大的比重)；要实现html5应用，还要写CSS与JavaScript，增加了人员构成和开发成本，其编写难度也要远大于Flex。在较长一段时间内，HTML5是无法”替代”Flex技术的，也许最终HTML 5与Flex将成为是两种截然不同的技术解决方案，所以，它们是互补的，而非替代。如对Flash/Flex/Html5还不了解，我到互联网上找了一篇相关的文章和大家分享一下: 浅谈 Flash/Flex/HTML5 技术选型

一，Flex4&BlazeDS&JAVA整合:

Myeclipse10.6+Flash Builder 4.6安装配置

二，用户界面设计:

播放器界面的设计:

专辑制作界面的设计:

三，数据库设计:

album(专辑表)创建语句:

CREATE TABLE `album` (

   `a_id` int(11) NOT NULL AUTO_INCREMENT,

   `a_name` varchar(20) NOT NULL DEFAULT '',

   `a_singer` varchar(20) NOT NULL DEFAULT '',

   `a_image` varchar(120) NOT NULL DEFAULT '',

   PRIMARY KEY (`a_id`)

 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8 ;

song(歌曲表)创建语句:

CREATE TABLE `song` (

   `s_id` int(11) NOT NULL AUTO_INCREMENT,

   `a_id` int(11) NOT NULL,

   `s_name` varchar(120) NOT NULL DEFAULT '',

   `s_source` varchar(150) NOT NULL DEFAULT '',

   PRIMARY KEY (`s_id`)

 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8 ;

四，前端代码物理实现(Flex4部分代码实现):

播放器界面物理实现，通过在主程序中定义三个不同的自定义组件，”专辑””列表”“播放器控制面板”来构成整个播放器界面。

1，程序入口文件:myMusicPlayer.mxml

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

               xmlns:s="library://ns.adobe.com/flex/spark"

               xmlns:mx="library://ns.adobe.com/flex/mx"

               minWidth="955" minHeight="600" skinClass="skinks.ApplicationSkin"

               xmlns:components="components.*"

               creationComplete="initApp()">

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

        <s:RemoteObject id="albumListDist" destination="AlbumServerTaget"

                        result="albumListDist_resultHandler(event)"

                        fault="albumListDist_faultHandler(event)"/>

        <s:RemoteObject id="songListDist" destination="SongServerTaget"

                        result="songListDist_resultHandler(event)"

                        fault="songListDist_faultHandler(event)"/>

    </fx:Declarations>

    <fx:Metadata>

        [Event(name="changeitem",type="events.MyEvent")]   //通过 Event元数据 定义自定义监听事件

    </fx:Metadata>

    <fx:Script>

        <![CDATA[

            import events.MyEvent;

            import events.MyEvent2;

            import events.MyEvent3;

            import mx.collections.ArrayCollection;

            import mx.collections.ArrayList;

            import mx.controls.Alert;

            import mx.events.FlexEvent;

            import mx.rpc.events.FaultEvent;

            import mx.rpc.events.ResultEvent;

            import valueObjects.Song;

            [Bindable]

            public var albums:ArrayCollection;

            public var listData:ArrayCollection=new ArrayCollection();

            private var musicSource:Object;

            private var albumSinger:String; //专辑歌手

            /**

             * 初始化函数

             */

            private function initApp():void{

                albumListDist.getList(); //调用服务端方法

                album.addEventListener(MyEvent3.CHANGEITEM,albumList_change_Handler3); //监听自定义事件;

            /*     //将数据放入到值对象中

                for each(var temp:Object in data[0]){

                    var song:Song=new Song();

                    song.singer=temp.singer;

                    song.song=temp.song;

                    song.musicSource=temp.musicSource;

                    listData.addItem(song);

                }

                //列表自动初始化第一个专辑数据绑定

                list.data=listData;

                //专辑绑定数据

                album.data=Album;

                player.musicItem=Object(listData[0]);

                player.musicNum=listData.length;

                //Alert.show(data[0].length);

                */

            }        

            /**

             * 重新选择专辑后调用

             */

            private function albumList_change_Handler3(event:MyEvent3):void{

                albumSinger=event.albumItem.a_singer;

                songListDist.getSongsById(event.albumItem.a_id); //通过专辑ID请求专辑的数据

            }

            /**

             *结果函数     albumListDist.getList()  获取专辑列表

             */

            protected function albumListDist_resultHandler(event:ResultEvent):void

            {

                albums=event.result as ArrayCollection;

                album.data=albums; //绑定专辑数据

                albumSinger=albums[0].a_singer;  //获取第一个专辑里歌手信息

                songListDist.getSongsById(albums[0].a_id); //请求第一个专辑的数据

            }

            protected function albumListDist_faultHandler(event:FaultEvent):void{

                //Alert.show(event.message.toString());

            }

            /**

             * 结果函数 songListDist.getSongsById(albums[0].a_id); 请求第一个专辑的数据

             */

            protected function songListDist_resultHandler(event:ResultEvent):void

            {

                list.data=event.result as ArrayCollection;

                player.musicItem=event.result[0] as Object;   //歌曲实例

                player.musicNum=ArrayCollection(event.result).length; //专辑含歌曲数量 专辑长度

                player.albumSinger=albumSinger;

            }

            protected function songListDist_faultHandler(event:FaultEvent):void{}

        ]]>

    </fx:Script>

    <!--程序主题-->

    <s:Group horizontalCenter="0" verticalCenter="0">

        <!--背景图片-->

        <s:BitmapImage  width="1078" smooth="true"

                       source="@Embed('/assets/images/contentBg.png')"/>

            <!--专辑-->

            <components:Album id="album" x="220" y="70" width="100%" height="100%"/>

            <!--列表-->

            <components:List  id="list"   width="220" height="605" />

            <!--播放器控制面板-->

            <components:Player id="player" />

    </s:Group>

</s:Application>

2，自定义“专辑”组件:Album.mxml

<?xml version="1.0" encoding="utf-8"?>

<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009"

         xmlns:s="library://ns.adobe.com/flex/spark"

         xmlns:mx="library://ns.adobe.com/flex/mx"

         creationComplete="group1_creationCompleteHandler(event)">

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

    </fx:Declarations>

    <fx:Metadata>

        [Event(name="changeitem3",type="events.MyEvent3")]

    </fx:Metadata>

    <fx:Script>

        <![CDATA[

            import events.MyEvent2;

            import events.MyEvent3;

            import mx.collections.ArrayCollection;

            import mx.controls.Alert;

            import mx.events.FlexEvent;

            [Bindable]

            public var data:ArrayCollection;

            /**

             * 初始化函数

             */

            protected function group1_creationCompleteHandler(event:FlexEvent):void

            {

                list.addEventListener(MouseEvent.DOUBLE_CLICK,albumDoubleClick);

            }

            /**

             * 双击事件

             */

            private function albumDoubleClick(event:MouseEvent):void{

                dispatchEvent(new MyEvent3("changeitem3",list.selectedItem)); //分配事件  此事打List组件中调用

            }

        ]]>

    </fx:Script>

    <s:BitmapImage  left="-20" top="15"  source="@Embed('/assets/images/RasterizedItems3.png')"

                    />

    <s:List id="list" left="0" top="43" dataProvider="{data}" itemRenderer="components.AlbumItem" skinClass="skinks.MyAlbums"

            doubleClickEnabled="true"

            requireSelection="true"

            selectedIndex="0">

        <s:layout>

            <s:TileLayout paddingTop="50" paddingLeft="70" verticalGap="40" horizontalGap="40" orientation="rows"

                          requestedColumnCount="4"

/>

        </s:layout>

    </s:List>

</s:Group>

3，自定义“列表”组件:List.mxml

<?xml version="1.0" encoding="utf-8"?>

<s:SkinnableContainer xmlns:fx="http://ns.adobe.com/mxml/2009"

                      xmlns:s="library://ns.adobe.com/flex/spark"

                      xmlns:mx="library://ns.adobe.com/flex/mx"

                      creationComplete="init(event)">

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

    </fx:Declarations>

    <fx:Metadata>

        [Event(name="changeitem",type="events.MyEvent")]

    </fx:Metadata>

    <fx:Script>

        <![CDATA[

            import events.MyEvent;

            import events.MyEvent2;

            import mx.collections.ArrayCollection;

            import mx.collections.ArrayList;

            import mx.controls.Alert;

            import mx.events.FlexEvent;

            [Bindable]

            public var data:ArrayCollection;

            protected function init(event:FlexEvent):void

            {

                list.addEventListener(MouseEvent.DOUBLE_CLICK,itemDoubleClick);

            }

            private function itemDoubleClick(event:MouseEvent):void{

                var temp:Object=list.selectedItem;

                dispatchEvent(new MyEvent("changeitem",temp));

            }

        ]]>

    </fx:Script>

    <s:BitmapImage  height="100%"

                    source="@Embed('/assets/images/RasterizedItems2.png')"/>

    <s:VGroup top="110" left="0" right="0" bottom="0">

        <s:Label color="#FFFFFF" fontFamily="微软雅黑" fontSize="13" paddingLeft="30"

                 text="歌单"/>

        <s:List id="list"

                dataProvider="{data}"

                itemRenderer="components.ListItem"

                skinClass="skinks.list.SongsList"

                doubleClickEnabled="true"

                requireSelection="true"

                selectedIndex="0"

                height="100%"

                width="100%" >

            <s:layout>

                <s:VerticalLayout gap="0" paddingLeft="0" />

            </s:layout>

        </s:List>

    </s:VGroup>

</s:SkinnableContainer>

4，自定义“播放器控制面板”组件:Player.mxml

<?xml version="1.0" encoding="utf-8"?>

<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009"

         xmlns:s="library://ns.adobe.com/flex/spark"

         xmlns:mx="library://ns.adobe.com/flex/mx"

         creationComplete="init()">

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

    </fx:Declarations>

    <fx:Metadata>  

    </fx:Metadata>

    <fx:Script>

        <![CDATA[

            import events.MyEvent;

            import mx.controls.Alert;

            import mx.events.FlexEvent;

            import utils.Tool4DateTime;

            /**

             * 服务器IP地址

             */

            private var serverIP:String="http://localhost:8080";

            /**

             * List对象

             */

            public var MusicList:List;

            /**

             * musicItem Object  音乐信息对象

             */

            [Bindable]

            public var musicItem:Object;

            /**

             * 列表歌曲数量

             */

            public var musicNum:int;

            /**

             * 歌手名称

             */

            [Bindable]

            public var albumSinger:String;

            /**

             * 播放器音量

             */

            private var currentVolum:Number =0.5;

            /**

             * 正在播放的音乐的URL字符串

             * 从主程序中获得 player.currentMusicUrlString=musicSource;

             */

            public var currentMusicUrlString:String;

            /**

             * 正在播放的音乐的URLRequest

             */

            private var currentMusicUrlRequest:URLRequest;

            /**

             * 正在播放的音乐的Sound

             */

            private var currentMusicSound:Sound;

            /**

             * 正在播放的音乐的SoungChannel

             * SoundChannel 类控制应用程序中的声音。每个声音均分配给一个声道，而且应用程序可以具有混合在一起的多个声道。SoundChannel 类包含 stop() 方法、用于监控声道幅度（音量）的属性以及用于对声道指定 SoundTransform 对象的属性。

             */

            private var currentMusicChannel:SoundChannel;

            /**

             * 正在播放的音乐的 SoundTransform

             * SoundTransform 类包含音量和平移的属性。

             */

            private var currentMusicTransform:SoundTransform;

            /**

             * 正在播放的音乐的播放进度参数

             */

            private var currentMusicPosition:int =0;

            /**

             * 正在播放的音乐的总时间

             */

            private var currentMusicTotleTime:Number =0;

            /**

             * 音乐是否正在播放

             */

            private var isplaying:Boolean = false;

            private function init():void{

                playAndPause.addEventListener(MouseEvent.CLICK,musicPlay); //播放按钮

                previous.addEventListener(MouseEvent.CLICK,playPrevious); //上一首

                next.addEventListener(MouseEvent.CLICK,playNext); //上一首

                playingProcess.addEventListener(Event.CHANGE,playingProcess_changeHandler); //进度条滚动事件

                volumeSlider.addEventListener(Event.CHANGE,volumeSlider_changeHandler); //音量条滚动事件

                //监听自定义事件

                MusicList=parentApplication.list;  //设置List对象

                MusicList.addEventListener(MyEvent.CHANGEITEM,playerList_change_Handler); //监听自定义事件

            }

            private function musicPlay(event:MouseEvent):void{

                if(!isplaying){  //播放  false

                    //此状态为 启动播放器 然后点击播放按钮 状态(空状态)

                    if(currentMusicSound==null&&currentMusicChannel ==null){

                        currentMusicUrlString=serverIP+musicItem.s_source;

                        currentMusicUrlRequest =new URLRequest(currentMusicUrlString);

                        currentMusicSound = new Sound();

                        currentMusicSound.load(currentMusicUrlRequest);

                        currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler);

                        currentMusicChannel = currentMusicSound.play();//开始播放

                        timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器

                        //currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

                    }else{//此状态为 暂停后点击播放按钮 状态

                        currentMusicChannel = currentMusicSound.play(currentMusicPosition);

                    }

                    isplaying=true;

                }else{    //暂停

                    //此状态为 播放过程中点击 暂停按钮 状态

                    currentMusicPosition = currentMusicChannel.position;//记录暂停位置

                    currentMusicChannel.stop();//暂停

                    isplaying=false;

                }

                currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

            }

            /**

             * 自动播放下一首

             * @param event

             *

             */

            protected function autoPlayNext(event:Event):void{//过滤参数问题

                if(parentApplication.list.list.selectedIndex>=musicNum-1 ){

                    parentApplication.list.list.selectedIndex = 0;

                }else{

                    parentApplication.list.list.selectedIndex += 1;

                }

                if(currentMusicSound!=null&&currentMusicChannel!=null){

                    currentMusicChannel.stop();//暂停

                }

                clearPar();

                musicItem=parentApplication.list.list.selectedItem;

                currentMusicUrlString=serverIP+musicItem.s_source;

                currentMusicUrlRequest =new URLRequest(currentMusicUrlString);

                currentMusicSound = new Sound();

                currentMusicSound.load(currentMusicUrlRequest);

                currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler);

                playAndPause.selected=true;

                isplaying =true;

                currentMusicChannel = currentMusicSound.play();//开始播放

                timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器

                currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

            }

            /**

             * 播放上一首

             */

            protected function playPrevious(event:MouseEvent):void

            {

                parentApplication.list.list.selectedIndex--;

                if(parentApplication.list.list.selectedIndex<0 ){

                    parentApplication.list.list.selectedIndex = musicNum-1;

                }

                if(currentMusicSound!=null&&currentMusicChannel!=null){

                    currentMusicChannel.stop();//暂停

                }

                clearPar();

                musicItem=parentApplication.list.list.selectedItem;

                currentMusicUrlString=serverIP+musicItem.s_source;

                currentMusicUrlRequest =new URLRequest(currentMusicUrlString);

                currentMusicSound = new Sound();

                currentMusicSound.load(currentMusicUrlRequest);

                currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler);

                playAndPause.selected=true;

                isplaying =true;

                currentMusicChannel = currentMusicSound.play();//开始播放

                timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器

                currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

            }

            /**

             *  播放下一首

             */

            protected function playNext(event:MouseEvent):void

            {

                parentApplication.list.list.selectedIndex++;

                if(parentApplication.list.list.selectedIndex>musicNum-1 ){

                    parentApplication.list.list.selectedIndex = 0;

                }

                if(currentMusicSound!=null&&currentMusicChannel!=null){

                    currentMusicChannel.stop();//暂停

                }

                clearPar();

                musicItem=parentApplication.list.list.selectedItem;

                currentMusicUrlString=serverIP+musicItem.s_source;

                currentMusicUrlRequest =new URLRequest(currentMusicUrlString);

                currentMusicSound = new Sound();

                currentMusicSound.load(currentMusicUrlRequest);

                currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler);

                playAndPause.selected=true;

                isplaying =true;

                currentMusicChannel = currentMusicSound.play();//开始播放

                timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器

                currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

            }

            private function playerList_change_Handler(event:MyEvent):void{

                if(currentMusicSound!=null&&currentMusicChannel!=null){

                    currentMusicChannel.stop();//暂停

                }

                clearPar();

                musicItem=event.musicItem;

                currentMusicUrlString=serverIP+musicItem.s_source;

                currentMusicUrlRequest =new URLRequest(currentMusicUrlString);

                currentMusicSound = new Sound();

                currentMusicSound.load(currentMusicUrlRequest);

                currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler);

                playAndPause.selected=true;

                isplaying =true;

                currentMusicChannel = currentMusicSound.play();//开始播放

                timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器

                currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

            }

            /**

             * 清除参数

             * currentMusicSound = null;

             * currentMusicChannel = null;

             * currentMusicPosition = 0;

             *

             */

            private function clearPar():void{

                currentMusicSound = null;

                currentMusicChannel = null;

                currentMusicPosition = 0;

            }

            /**

             * 正在播放的歌曲的总时长

             */

            private var len:int;

            /**

             * 文件加载完成 能读取到音乐的总时长

             * @param event

             *

             */

            protected function load_CompleteHandler(event:Event):void{

                len = currentMusicSound.length;

                totalTime.text = Tool4DateTime.millionSecond2MinuteSecond(len);

            }

            /**

             * 同步更新已经播放的时间的计时器

             *

             */

            protected function timer_GetCurrentPositionHandler():void{

                var clock:Timer = new Timer(100,int(len/1000/60*10));//每0.1秒更新一次

                clock.start();

                clock.addEventListener(TimerEvent.TIMER,showTime);

            }

            /**

             * 显示已经播放的总时间

             * @param event

             *

             */

            protected function showTime(event:Event):void{

                playingProcess.maximum = int(len/1000)*10;//最大值

                playingProcess.value = int(currentMusicPosition/1000*10); //当前值

                currentMusicPosition = currentMusicChannel.position;

                playedTime.text = Tool4DateTime.millionSecond2MinuteSecond(currentMusicPosition);

            }

            /**

             * 播放进度条 可以拖动

             * @param event

             *

             */

            protected function playingProcess_changeHandler(event:Event):void{

                if(currentMusicChannel!=null){

                    currentMusicPosition = playingProcess.value*1000/10;//当前音乐播放进度

                    currentMusicChannel.stop();

                    currentMusicChannel = currentMusicSound.play(currentMusicPosition);

                    isplaying=true;

                    playAndPause.selected=true;

                    currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首

                }else{

                    playingProcess.value=0;

                }

            }

            /**

             * 音量调节

             * @param event

             *

             */

            protected function volumeSlider_changeHandler(event:Event):void{

                if(currentMusicChannel != null){//正在播放时调节音量

                    currentMusicTransform = currentMusicChannel.soundTransform;

                    currentMusicTransform.volume = volumeSlider.value/10;

                    currentMusicChannel.soundTransform = currentMusicTransform;

                    currentVolum = currentMusicTransform.volume;

                }

                currentVolum = volumeSlider.value/10;

            }

        ]]>

    </fx:Script>

    <s:states>

        <s:State name="normal" />

        <s:State name="disabled" />

    </s:states>

    <!--背景图片-->

    <s:BitmapImage  smooth="true"

                    source="@Embed('/assets/images/headBg.png')"/>

    <s:Group id="contentGroup" left="0" right="0" top="0" bottom="0" >

        <!--播放按钮-->

        <s:HGroup  left="35" bottom="15" verticalAlign="middle"  >

            <s:Button skinClass="skinks.playercontrol.PreviousButton" id="previous"   />

            <s:ToggleButton id="playAndPause" skinClass="skinks.playercontrol.PlayAndPause"  />

            <s:Button  skinClass="skinks.playercontrol.NextButton"  id="next"/>

        </s:HGroup>

        <!--音量条-->

        <s:HGroup left="200" bottom="15" height="50" gap="10" verticalAlign="middle">

            <s:BitmapImage  source="@Embed('/assets/images/MuteButton.png')"/>

            <s:HSlider id="volumeSlider" skinClass="skinks.playercontrol.volume.HSliderSkin" maximum="10" stepSize="1" value="5" />

            <s:BitmapImage smooth="true"

                           source="@Embed('/assets/images/RasterizedItems10.png')"/>

        </s:HGroup>

        <s:BitmapImage smooth="true" source="@Embed('/assets/images/Shape 14.png')"

                       x="365" y="2"/>

        <!--进度条和歌曲信息-->

        <s:VGroup left="372" bottom="25" horizontalAlign="center" >

            <s:Label text="{musicItem.s_name}"

                     color.normal="#D6D3D3" fontFamily.normal="微软雅黑" fontSize.normal="13"

                     fontWeight.normal="bold"/>

            <s:Label text="{albumSinger}"

                     color.normal="#D6D3D3" fontFamily.normal="微软雅黑" fontSize.normal="11"/>

            <s:HGroup>

                <s:Label id="playedTime" text="00:00"

                         color.normal="#D6D3D3" fontFamily.normal="微软雅黑"/>

                <s:ScrubBar id="playingProcess" skinClass="skinks.playercontrol.scrubbar.ScrubBar"/>

                <s:Label id="totalTime" text="00:00"

                         color.normal="#D6D3D3" fontFamily.normal="微软雅黑"/>

            </s:HGroup>

        </s:VGroup>

    </s:Group>

</s:Group>

关于flex操作音频文件，可以参考我之前做的一个简单音乐播放器实例:

博客中 Flex4/Flash mp3音乐播放器实例含演示地址

专辑制作插件物理实现、

MyUpload3.mxml

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

               xmlns:s="library://ns.adobe.com/flex/spark"

               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"

               skinClass="skinks.ApplicationSkink"

               creationComplete="init()">

    <fx:Style source="assets/styles/main.css"/>

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

    </fx:Declarations>

    <fx:Script>

        <![CDATA[

            import components.Album;

            import components.GridHeaderRenderer;

            import components.MultiFileUpload;

            import events.MyEvent;

            import mx.collections.ArrayCollection;

            import mx.collections.ArrayList;

            import mx.controls.Alert;

            import mx.utils.StringUtil;

            import spark.components.gridClasses.GridColumn;

            [Bindable]

            private var data=new ArrayCollection([

                {id:"1",song:"心愿",sf:".mp3"},

                {id:"2",song:"心愿",sf:".mp3"},

                {id:"3",song:"心愿",sf:".mp3"},

                {id:"4",song:"心愿",sf:".mp3"},

                {id:"4",song:"心愿",sf:".mp3"}

            ]);

            public var album:Album;  //专辑信息上传对象

            public var multiFileUpload:MultiFileUpload;  //音乐文件上传对象

            public var imageTypes:FileFilter = new FileFilter("Images (*.jpg; *.jpeg; *.gif; *.png)" ,"*.jpg; *.jpeg; *.gif; *.png");

            public var imagefilesToFilter:Array = new Array(imageTypes); //图片过滤数组

            public var ImageUploadDestination:String = "http://localhost:8080/MyUpload4/AlbumAdd";  //专辑信息上传地址

            public var musicTypes:FileFilter = new FileFilter("Music Files (*.mp3)","*.mp3");

            public var filesToFilter:Array = new Array(musicTypes); //音乐过滤数组

            public var uploadDestination:String = "http://localhost:8080/MyUpload4/FileUploadServlet";  //专辑信息上传地址

            private function init():void{

                album=new Album(albumName,singer,ImageUploadDestination,imagefilesToFilter,img,create);

                album.addEventListener(MyEvent.COMPLETE,albumUpload);

                //初始化数据列表头

                var _nameColumn = new GridColumn;

                var _typeColumn = new GridColumn;

                var _sizeColumn = new GridColumn;

                _nameColumn.headerText= "File";

                _nameColumn.headerRenderer=new ClassFactory(GridHeaderRenderer);

                _typeColumn.headerText = "File Type";

                _typeColumn.width = 80;

                _typeColumn.headerRenderer=new ClassFactory(GridHeaderRenderer);

                _sizeColumn.headerText = "File Size";

                _sizeColumn.width = 150;

                _sizeColumn.headerRenderer=new ClassFactory(GridHeaderRenderer);

                var _columns = new ArrayList([_nameColumn,_typeColumn,_sizeColumn]);

                filesDG.columns=_columns;

            }

            private function albumUpload(e:MyEvent):void{

                var postVariables:URLVariables = new URLVariables;

                postVariables.id = e.data;

                multiFileUpload = new MultiFileUpload(

                    filesDG,

                    browseBTN,

                    clearButton,

                    delButton,

                    upload_btn,

                    progressbar,

                    uploadDestination,

                    postVariables,

                    10240000,

                    filesToFilter

                );

            //    var test=filesDG.columns.getItemAt(0);

            }

        ]]>

    </fx:Script>

    <s:Group width="460" verticalCenter="0" horizontalCenter="0">

        <s:layout>

            <s:VerticalLayout verticalAlign="middle" horizontalAlign="center"/>

        </s:layout>

        <!--专辑信息-->

        <s:Group width="100%">

            <s:Button id="create"

                      right="0" width="60" height="150" label="创建专辑"

                      enabled="true"

                      skinClass="skinks.ButtonSkin1"/>

            <s:SkinnableContainer  width="400" height="150" skinClass="skinks.SkinnableContainer">

                <s:Image id="img" left="10" top="10" width="130" height="130" scaleMode="zoom" smooth="true"

                         source="assets/images/album.png"/>

                <s:VGroup width="100%" height="100%" top="10" left="140" bottom="10" right="10" gap="0">

                    <s:HGroup width="100%" height="100%" verticalAlign="middle" paddingLeft="10">

                        <s:Label width="50" color="#FFFFFF" fontFamily="微软雅黑" fontSize="14"

                                 text="专辑名" textAlign="right"/>

                        <s:TextInput id="albumName" width="180" height="30"  borderVisible="false" fontFamily="微软雅黑"

                                     fontSize="14"/>

                    </s:HGroup>

                    <s:HGroup width="100%" height="100%" verticalAlign="middle" paddingLeft="10">

                        <s:Label width="50" color="#FFFFFF" fontFamily="微软雅黑" fontSize="14" text="歌手"

                                 textAlign="right"/>

                        <s:TextInput id="singer" width="180" height="35" borderVisible="false" fontFamily="微软雅黑"

                                     fontSize="14"/>

                    </s:HGroup>

                </s:VGroup>

            </s:SkinnableContainer>

        </s:Group>

        <!--数据列表-->

        <s:DataGrid id="filesDG" width="460" color="#FFFFFF"  fontFamily="微软雅黑" fontSize="13"

                    requestedRowCount="4" rowHeight="70" skinClass="skinks.DG">

            <!--<s:columns>

                <s:ArrayList>

                    <s:GridColumn dataField="id" headerText="#" headerRenderer="components.GridHeaderRenderer"  itemRenderer="components.GridItemRenderer"></s:GridColumn>

                    <s:GridColumn dataField="song" headerText="歌曲" headerRenderer="components.GridHeaderRenderer"  itemRenderer="components.GridItemRenderer"></s:GridColumn>

                    <s:GridColumn dataField="sf" headerText="后缀" headerRenderer="components.GridHeaderRenderer" itemRenderer="components.GridItemRenderer"></s:GridColumn>

                </s:ArrayList>

            </s:columns>-->

        </s:DataGrid>

        <mx:ProgressBar

            id="progressbar"

            width="100%"

            height="15"

            labelPlacement="center"

            barSkin="skinks.ProgressBar.CustomProgressSkin"

            trackSkin="skinks.ProgressBar.CustomProgressBarTrackSkin"

            color="0xFFFFFF"

            minimum="0"

            visible="true"

            maximum="100"

            label="CurrentProgress 0%"

            direction="right"

            mode="manual"

            />

        <s:HGroup gap="0">

            <s:Button id="browseBTN" label="浏览" fontFamily="微软雅黑"/>

            <s:Button id="upload_btn" label="上传" fontFamily="微软雅黑"/>

            <s:Button  id="delButton" label="移除" fontFamily="微软雅黑"/>

            <s:Button id="clearButton" label="移除全部" fontFamily="微软雅黑"/>

        </s:HGroup>

    </s:Group>

</s:Application>

关于文件上传部分，是根据MultiFile Upload插件，通过自定义UI组件皮肤完成，可以参考我之前的一个修改实例:

Flex4/Flash多文件上传(带进度条)实例分享

五，后端代码物理实现(JAVA部分代码物理实现):

AlbumDao.java

package com.dao;

import java.awt.List;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.ArrayList;

import com.bean.Album;

import com.resource.JDBCUtilSingle;

public class AlbumDao {

    /**

     * 插入专辑信息 返回ID号

     * @param a_name

     * @param a_singer

     * @param a_image

     * @return

     */

    public int addAlbum(String a_name,String a_singer,String a_image){

        Connection connection=null;

        PreparedStatement statement=null;

        ResultSet rs=null;

        connection=JDBCUtilSingle.getInitJDBCUtil().getConnection();

        int id=0;

        try {

            //专辑信息插入

            String sql="insert into album(a_name,a_singer,a_image) values(?,?,?)";

            statement=connection.prepareStatement(sql);

            statement.setString(1,a_name);

            statement.setString(2,a_singer);

            statement.setString(3,a_image);

            //System.out.println(sql);

            statement.executeUpdate();

            //获取插入ID

            rs = statement.getGeneratedKeys();

            rs.next();

            id = rs.getInt(1);

        } catch (SQLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        JDBCUtilSingle.getInitJDBCUtil().closeConnection(rs, statement, connection);

        return id;

    }

    /**

     * 获取所有专辑信息

     * @return  返回专辑列表

     */

    public ArrayList selectAlbum(){

        Connection connection=null;

        PreparedStatement statement=null;

        ResultSet rs=null;

        connection=JDBCUtilSingle.getInitJDBCUtil().getConnection();

        ArrayList albums=new ArrayList();

        try {

            //专辑信息插入

            String sql="select * from album";

            statement=connection.prepareStatement(sql);

            rs=statement.executeQuery();

             while(rs.next()){

                    albums.add(new Album(rs.getInt("a_id"), rs.getString("a_name"), rs.getString("a_singer"), rs.getString("a_image")));

             }

        } catch (SQLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally{

            JDBCUtilSingle.getInitJDBCUtil().closeConnection(rs, statement, connection);

        }

        return albums;

    }

}

SongDao.java

package com.dao;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.ArrayList;

import com.bean.Album;

import com.bean.Song;

import com.resource.JDBCUtilSingle;

public class SongDao {

    public int addSongs(int a_id,String s_name,String s_source){

        Connection connection=null;

        PreparedStatement statement=null;

        ResultSet rs=null;

        connection=JDBCUtilSingle.getInitJDBCUtil().getConnection();

        int tag=0;

        try {

            String sql="insert into song(a_id,s_name,s_source) values(?,?,?)";

            statement=connection.prepareStatement(sql);

            statement.setInt(1,a_id);

            statement.setString(2,s_name);

            statement.setString(3,s_source);

            tag=statement.executeUpdate();

        } catch (SQLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        JDBCUtilSingle.getInitJDBCUtil().closeConnection(rs, statement, connection);

        return tag;

    }

    public ArrayList getSongs(int a_id){

        ArrayList songs=new ArrayList();

        Connection connection=null;

        PreparedStatement statement=null;

        ResultSet rs=null;

        connection=JDBCUtilSingle.getInitJDBCUtil().getConnection();

        try {

            String sql="select * from song where a_id="+a_id;

            statement=connection.prepareStatement(sql);

            rs=statement.executeQuery();

            while(rs.next()){

                songs.add(new Song(rs.getInt("s_id"), rs.getInt("a_id"), rs.getString("s_name"), rs.getString("s_source")));

         }

        } catch (SQLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally{

            JDBCUtilSingle.getInitJDBCUtil().closeConnection(rs, statement, connection);

        }

        return songs;

    }

}

好吧，就写到这里了，因为代码是较早之前写的了，由于学校放假，闲来没事，就那之前的代码翻看了一遍，由于时间久远，也没写什么注释，在代码的语法和程序逻辑上，自己也硬是看了半天才回过神来。现在在代码中加了一些注释，添加了一些歌曲内容，已上传到测试空间中，欢迎大家来测试。由于本人水平有限，如文章在表述或代码方面有何不妥之处，欢迎批评指正。

你可能还对以下关于Flex的文章内容还感兴趣:

如以上文章或链接对你有帮助的话，别忘了在文章结尾处轻轻点击一下 “还不错”按钮或到页面右下角点击 “赞一个” 按钮哦。你也可以点击页面右边“分享”悬浮按钮哦，让更多的人阅读这篇文章。

作者:Li-Cheng

出处: http://www.cnblogs.com/Li-Cheng/p/3837554.html

由于本人水平有限，文章在表述和代码方面如有不妥之处，欢迎批评指正。留下你的脚印，欢迎评论哦。你也可以关注我，一起学习哦！

码农公寓

要求

必备知识

开发环境

演示地址

一，Flex4&BlazeDS&JAVA整合:

二，用户界面设计:

三，数据库设计:

四，前端代码物理实现(Flex4部分代码实现):

五，后端代码物理实现(JAVA部分代码物理实现):

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