1 package
2 {
3 import flash.display.Sprite;
4 import flash.events.DataEvent;
5 import flash.events.Event;
6 import flash.events.MouseEvent;
7 import flash.events.ProgressEvent;
8 import flash.net.FileFilter;
9 import flash.net.FileReference;
10 import flash.net.FileReferenceList;
11 import flash.net.URLRequest;
12 import flash.net.URLRequestMethod;
13 import flash.net.URLVariables;
14 import flash.text.TextField;
15 import flash.text.TextFieldAutoSize;
16 /**
17 * ...
18 * @author Frost.Yen
19 */
20 public class UploadListAS3 extends Sprite
21 {
22 private var _label:TextField;
23 private var _button:TextField;
24 private var _fileRefer:FileReferenceList;
25 private var _count:int = 0;
26 private var _request:URLRequest = new URLRequest("http://localhost/yanzimen/");
27 public function UploadListAS3()
28 {
29 if(stage) init();
30 else addEventListener(Event.ADDED_TO_STAGE,init);
31 }
32 private function init(e:Event = null):void
33 {
34 _label = new TextField();
35 _label.text = "please select file";
36 _label.autoSize = TextFieldAutoSize.LEFT;
37 _label.background = true;
38 _label.width = 300;
39 _label.wordWrap = true;
40 _label.backgroundColor = 0xffffff;
41 _label.border = true;
42 _button = new TextField();
43 _button.text = "click here to select file";
44 _button.autoSize = TextFieldAutoSize.LEFT;
45 _button.selectable = false;
46 _button.background = true;
47 _button.backgroundColor = 0xE29966;
48 _button.border = true;
49 this.addChild(_label);
50 this.addChild(_button);
51 _button.x = 310;
52
53 _fileRefer = new FileReferenceList();
54 _button.addEventListener(MouseEvent.CLICK,toSelect);
55 _fileRefer.addEventListener(Event.SELECT,onSelect);
56 _fileRefer.addEventListener(Event.CANCEL,onCancel);
57 }
58 private function toSelect(e:MouseEvent):void
59 {
60 _fileRefer.browse(); //browse(typeFilter:Array=null) 使用 typeFilter 参数，可决定对话框显示哪些文件。
61 _button.removeEventListener(MouseEvent.CLICK,toSelect);
62 }
63 private function onProgress(e:ProgressEvent):void
64 {
65 _label.text = Number(Math.round(e.bytesLoaded / e.bytesTotal*100))+"%";
66 //label.text = e.bytesLoaded+"/"+e.bytesTotal;
67 }
68 private function onComplete(e:Event):void
69 {
70 e.target.removeEventListener(Event.COMPLETE,onComplete);
71 e.target.removeEventListener(ProgressEvent.PROGRESS,onProgress);
72
73 if(_count<_fileRefer.fileList.length-1){
74 _label.text = "load complete "+(_count+1)+" file";
75 _count++;
76 }else{
77 _count=0;
78 _button.addEventListener(MouseEvent.CLICK,toUpload);
79 _label.text = "all files load complete!";
80 _button.text = "to upload";
81 }
82 }
83 private function toUpload(e:MouseEvent):void{
84 onUpLoad(_fileRefer.fileList[_count]);
85 }
86 private function onSelect(e:Event):void
87 {
88 _label.text = "";
89 for(var i:int = 0;i<_fileRefer.fileList.length;i++){
90 trace("the name of the selected file:",_fileRefer.fileList[i].name);
91 _label.appendText("file "+(i+1)+":"+_fileRefer.fileList[i].name+"\n");
92 _fileRefer.fileList[i].addEventListener(Event.COMPLETE,onComplete);
93 _fileRefer.fileList[i].addEventListener(ProgressEvent.PROGRESS,onProgress);
94 (_fileRefer.fileList[i] as FileReference).load();
95 }
96 }
97 private function onCancel(e:Event):void
98 {
99 trace("cancel to upload");
100 _button.addEventListener(MouseEvent.CLICK,toSelect);
101 }
102 /**
103 * 调用FileReference的实例方法upload()实现文件上传
104 * @param file
105 */
106 private function onUpLoad(file:FileReference):void
107 {
108 _label.text = "file "+(_count+1)+" size"+Number(file.size/1024/1024).toFixed(2)+"M";
109 var variables:URLVariables = new URLVariables();
110 variables.fileName = file.name;
111 _request.data = variables;
112 _request.method = URLRequestMethod.POST;
113 file.addEventListener(ProgressEvent.PROGRESS, progressHandler);
114 file.addEventListener(Event.COMPLETE, completeHandler);
115 file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,completeDataHandler);
116 try
117 {
118 file.upload(_request);
119 }
120 catch(error:Error)
121 {
122 trace(error.message);
123 }
124
125 function progressHandler(e:ProgressEvent):void
126 {
127 _label.text = "file "+(_count+1)+" uploading "+Math.round(100 * e.bytesLoaded / e.bytesTotal) + "%";
128 }
129 function completeHandler(e:Event):void
130 {
131 var file:FileReference = FileReference(e.target);
132 file.removeEventListener(ProgressEvent.PROGRESS, progressHandler);
133 file.removeEventListener(Event.COMPLETE, completeHandler);
134 _button.removeEventListener(MouseEvent.CLICK,toUpload);
135 _button.addEventListener(MouseEvent.CLICK,toSelect);
136
137 if(_count<_fileRefer.fileList.length-1){
138 _label.text = "upload complete "+(_count+1)+" file";
139 _count++;
140 onUpLoad(_fileRefer.fileList[_count]);
141 }else{
142 _label.text = "all files upload complete";
143 _button.text = "click here to select file";
144 }
145 }
146 function completeDataHandler(e:DataEvent):void
147 {
148 var file:FileReference = FileReference(e.target);
149 file.removeEventListener(DataEvent.UPLOAD_COMPLETE_DATA,completeHandler);
150 if(_count==_fileRefer.fileList.length-1){
151 trace("upload_complete_data",e.data);//上传成功后，从后台返回的数据
152 }
153 }
154 }
155 /**
156 * FileFilter 类用于表示在调用 FileReference.browse() 方法、FileReferenceList.browse() 方法或调用 File、FileReference 或 FileReferenceList 对象的 browse 方法时显示的文件浏览对话框中显示用户系统上的哪些文件。
157 * @return
158 */
159 private function getImageTypeFilter():FileFilter {
160 return new FileFilter("Images (*.jpg, *.jpeg, *.gif, *.png)", "*.jpg;*.jpeg;*.gif;*.png");
161 }
162
163 private function getTextTypeFilter():FileFilter {
164 return new FileFilter("Text Files (*.txt, *.rtf)", "*.txt;*.rtf");
165 }
166 }
167 }
时间： 2024-10-29 19:07:19