flex多文件上传

代码都是别人的

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" 
	layout="vertical" windowComplete="init()">
	
	<mx:Script>
		<![CDATA[
			import mx.controls.Alert;
//			private var fileList:FileReferenceList;
//			private function init():void{
//				fileList=new FileReferenceList();
//				fileList.addEventListener(Event.SELECT,onSelect);
//				fileList.addEventListener(Event.CANCEL,onCancel);
//			}		
			[Bindable]
			private var files:Array;
			private var file:File;
			private function init():void{
				file=new File();
				file.addEventListener(FileListEvent.SELECT_MULTIPLE,onSelectMuti);
				
				
			}
			private function onSelectMuti(event:FileListEvent):void{
				this.files=event.files;
			}
			
			private function onSelect(event:Event):void{
				
			}
			private function onCancel(event:Event):void{
				
			}
			private function select():void{
				file.browseForOpenMultiple("选择上传文件");
			} 
			private function upLoad():void{
				for(var i:int=0;i<this.files.length;i++){
					var file:File=files[i];
					file.addEventListener(Event.COMPLETE,onComplete);
					file.upload(new URLRequest("http://localhost:8400/gdg/fileupLoad/FileUpLoad"));
				}
			}
			private function onComplete(event:Event):void{
				var file:File=event.target as File;
				mx.controls.Alert.show(file.nativePath+"上传成功");
			}
			private function onIOError():void{
				
			}
		]]>
	</mx:Script>
	<mx:VBox width="100%">
		
		
		<mx:HBox>
			<mx:Button label="选择" click="select()"/>
			<mx:Button label="上传" click="upLoad()"/>
		</mx:HBox>
		<mx:DataGrid dataProvider="{this.files}" width="100%">
			<mx:columns>
				<mx:DataGridColumn headerText="文件名">
				</mx:DataGridColumn>
				<mx:DataGridColumn headerText="图片">
					<mx:itemRenderer>
						<mx:Component>
							<mx:Image source="{data.nativePath}" width="100" height="100">
							</mx:Image>
						</mx:Component>
					</mx:itemRenderer>
				</mx:DataGridColumn>
				<mx:DataGridColumn headerText="上传进度">
					<mx:itemRenderer>
								FileUPLoad.test
					</mx:itemRenderer>
				</mx:DataGridColumn>
			</mx:columns>
		</mx:DataGrid>
	</mx:VBox>
	
</mx:WindowedApplication>

  FileUPLoad.test

<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml">
	<mx:Script>
		<![CDATA[
			import mx.controls.ProgressBar;
			private var _data:Object
			override public function set data(value:Object):void{
				this._data=value;
				File(this._data).addEventListener(ProgressEvent.PROGRESS,onPro);
				File(this._data).addEventListener(Event.COMPLETE,onCom);
			}
			override public function get data():Object{
				return this._data;
			}
			private function onCom(event:Event):void{
				hb.removeChild(bar);
				lbProgress.text="上传成功";
			}
			private function onPro(e:ProgressEvent):void{
				lbProgress.text = " 已上传 " + e.bytesLoaded
+ " 字节，共 " + e.bytesTotal + " 字节";
var proc: uint = e.bytesLoaded / e.bytesTotal * 100;
bar.setProgress(proc, 100);
bar.label= "当前进度: " + " " + proc + "%";
			}
		]]>
	</mx:Script>
	<mx:HBox id="hb">
		<mx:ProgressBar minimum="0" maximum="100" id="bar">
			
		</mx:ProgressBar>
		<mx:Label id="lbProgress">
			
		</mx:Label>
	</mx:HBox>
	
</mx:Canvas>

 

package test;

import javax.servlet.http.HttpServlet;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class FileUpLoadServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = -1427340872248925684L;
	
	/**
	 *
	 * @author crystal
	 */


	    /**
	     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
	     * @param request servlet request
	     * @param response servlet response
	     */
	    // 定义文件的上传路径

	    private String uploadPath = "d:\\a\\";

	// 限制文件的上传大小

	    private int maxPostSize = 100 * 1024 * 1024;

	  

	    public void destroy() {
	        super.destroy();
	    }

	    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
	            throws ServletException, IOException {
	        System.out.println("Access !");
	        response.setContentType("text/html;charset=UTF-8");
	        PrintWriter out = response.getWriter();

	//保存文件到服务器中

	        DiskFileItemFactory factory = new DiskFileItemFactory();
	        factory.setSizeThreshold(4096);
	        ServletFileUpload upload = new ServletFileUpload(factory);
	        upload.setSizeMax(maxPostSize);
	        try {
	            List fileItems = upload.parseRequest(request);
	            Iterator iter = fileItems.iterator();
	            while (iter.hasNext()) {
	                FileItem item = (FileItem) iter.next();
	                if (!item.isFormField()) {
	                    String name = item.getName();
	                    System.out.println(name);
	                    try {
	                        item.write(new File(uploadPath + name));
	                       // SaveFile s = new SaveFile();
	                        System.out.println("成功写入"+uploadPath+name);
	                       // s.saveFile(name);

	                    } catch (Exception e) {
	                        e.printStackTrace();
	                    }
	                }
	            }
	        } catch (FileUploadException e) {
	            e.printStackTrace();
	            System.out.println(e.getMessage() + "结束");
	        }
	    }

	    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

	    /**
	     * Handles the HTTP <code>GET</code> method.
	     * @param request servlet request
	     * @param response servlet response
	     */
	    protected void doGet(HttpServletRequest request, HttpServletResponse response)
	            throws ServletException, IOException {
	        processRequest(request, response);
	    }

	    /**
	     * Handles the HTTP <code>POST</code> method.
	     * @param request servlet request
	     * @param response servlet response
	     */
	    protected void doPost(HttpServletRequest request, HttpServletResponse response)
	            throws ServletException, IOException {
	        processRequest(request, response);
	    }

	    /**
	     * Returns a short description of the servlet.
	     */
	    public String getServletInfo() {
	        return "Short description";
	    }
	    // </editor-fold>

	

}