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
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&¤tMusicChannel ==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&¤tMusicChannel!=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&¤tMusicChannel!=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&¤tMusicChannel!=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&¤tMusicChannel!=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:
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。
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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！
Flex4/Flash+BlazeDS+JAVA+MySql 开发在线音乐播放器实例
时间： 2024-10-13 03:06:26