Flex上传大文件最佳解决方案是？？？？？

[gj_wrxz]

Flex上传大文件最佳解决方案是？？？？？ 500M以上

我程序用的是flex +java有 有什么建议的

[yc2503yc]

[yc2503yc]

最佳解决方案？

[gj_wrxz]

楼上的是怎么实现的

[gj_wrxz]

上传速度怎么样啊 500M一般要多长时间，能说的详细点吗 或者能共享个demo吗

[yc2503yc]

就是通过flex加Struts或者servlet实现的啊

Mp3Load.mxml:



<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="12" 
	borderColor="#000000" headerHeight="25" color="#ffffff" creationComplete="init();"
	showCloseButton="true" close="closewindow()" 
	title="告警声音文件上传" backgroundAlpha="0.50" backgroundColor="#000000" 
    verticalScrollPolicy="off" horizontalScrollPolicy="off">
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300">
	<mx:Script>
<![CDATA[
	import mx.managers.PopUpManager;
import flash.net.FileReference;
import mx.controls.Alert;
import mx.events.CloseEvent;
import flash.events.*;

private var file: FileReference;

private function init(): void{
	Security.allowDomain("*");
	file = new FileReference();
	file.addEventListener(ProgressEvent.PROGRESS, onProgress);
	file.addEventListener(Event.SELECT, onSelect);
	file.addEventListener(Event.COMPLETE, completeHandle);
}
private function closewindow():void{
	PopUpManager.removePopUp(this);
}
private function completeHandle(event:Event):void{
    Alert.show("上传成功!");
    PopUpManager.removePopUp(this);
}

private function upload(): void{
	try{
	var imageTypes:FileFilter = new FileFilter("Mp3 (*.mp3)", "*.mp3");
	var allTypes:Array = new Array(imageTypes);
	file.browse(allTypes);
//	file.browse();
	}catch(error:Error){
	Alert.show("一次只能打开一个文件浏览！");
	return;
	}
}
private function onSelect(e: Event): void{
	Alert.show("上传 " + file.name + " (共 "+Math.round(file.size)+" 字节)?",
	"确认上传",
	Alert.YES|Alert.NO,
	null,
	proceedWithUpload);
}

private function onProgress(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 + "%";
}

private function proceedWithUpload(e: CloseEvent): void{
	if (e.detail == Alert.YES){
	var request: URLRequest = new URLRequest("FileUploadMp3?fileName="+file.name);
	try {
	file.upload(request);
	} catch (error:Error) {
	trace("上传失败");
	}
	}
}
]]>
</mx:Script>
<mx:VBox width="100%" horizontalAlign="center">
<mx:Label id="lbProgress" text="上传"/>
<mx:ProgressBar id="bar" labelPlacement="bottom" themeColor="#F20D7A"
minimum="0" visible="true" maximum="100" label="当前进度: 0%"
direction="right" mode="manual" width="200"/>

<mx:Button label="上传文件" click="upload();"/>
</mx:VBox>

</mx:Canvas>
</mx:TitleWindow>

[yc2503yc]

FileUploadMp3是一个servlet 写的有点乱 见笑

package com.zznode.gixpert.groupnorms.action;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
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;
import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 *
 * @author qixiaoran 转载于网络 http://blog.csdn.net/meteorlWJ/archive/2008/06/01/2450234.aspx
 */
public class FileUploadServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
 

// 限制文件的上传大小
    private int maxPostSize = 100 * 1024 * 1024;

    public FileUploadServlet() {
        super();
    }

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

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
       //得到传递过来的文件名
        String filename = charChange(request.getParameter("fileName"));
        String uname =  System.currentTimeMillis()+".mp3"; //取一个随机数作为上传文件的文件名避开中文文件名乱码的可能性
        //得到当前tomcat的路径
        String tomcaturi = request.getSession().getServletContext().getRealPath("");
        // 定义文件的上传路径
        String uploadPath = ""; 
        	if(System.getProperty( "os.name").indexOf("Windows") != -1){
        		uploadPath = tomcaturi+"\\resources\\mv\\"+uname;
    		}else{
    			uploadPath = tomcaturi+"/resources/mv/"+uname;
    		}
        	

        //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()) {                   
                    try {
                        item.write(new File(uploadPath));
                    //    item.write(new File(tomcaturi+"\\gixpertflex-sx\\resources\\mv\\"+filename));
                       
                        if(System.getProperty( "os.name").indexOf("Windows") != -1){
                        	modiXMLFile(tomcaturi+"\\flexconfig\\groupnorms\\playlist.xml", tomcaturi+"\\flexconfig\\groupnorms\\playlist.xml",
                            		filename, "resources\\mv\\"+uname);
                		}else{
                			modiXMLFile(tomcaturi+"/flexconfig/groupnorms/playlist.xml", tomcaturi+"/flexconfig/groupnorms/playlist.xml",
                            		filename, "resources/mv/"+uname);
                		}
                    	
                        
                        
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (FileUploadException e) {
            e.printStackTrace();
                   }
    }

    // <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";
    }
    /**   
	 * 字符串内码转换 GB2312 to iso8859-1
	 */
	public String charChange(String ori) {
		if (ori == null || ori.length() == 0) {
			return "";
		}
		String newstr = "";
		try {
			newstr = new String(ori.getBytes("ISO-8859-1"));
			return newstr;
		} catch (Exception e) {
			e.printStackTrace();
			return newstr;
		}
	}
	/**

	* 修改XML文件中内容,并另存为一个新文件

	* @param filename 修改对象文件

	* @param newfilename 修改后另存为该文件
	
	* @param title 声音文件描述
	  
	* @param mp3url 上传的文件存放的地址

	* @return 返回操作结果, 0表失败, 1表成功

	*/


	private int modiXMLFile(String filename,String newfilename,String title,String mp3url){

		int returnValue = 0;

		try{

		SAXReader saxReader = new SAXReader(); 
		
		FileInputStream in = new FileInputStream(new File(filename));

		Document document = saxReader.read(createReader(in,"utf-8"));

		/** 修改内容之一: 如果sound节点中sound参数的内容为true,则修改成false */

		/** 先用xpath查找对象,将以前播放的声音文件标示置为false */
		
		List list = document.selectNodes("/playlist/sound" ); 

		Iterator iter = list.iterator();

		while(iter.hasNext()){
		Element ftpElement = (Element) iter.next();
		if (ftpElement.attribute("isuse").getValue().equals("true")) {
			ftpElement.attribute("isuse").setValue("false");	
		} 
		}
		/** 将新增的声音文件增加到xml描述文件 **/
		list = document.selectNodes("/playlist");

		iter = list.iterator();

		if(iter.hasNext()){

		Element ownerElement = (Element)iter.next();

		Element soundElement = ownerElement.addElement("sound");

		soundElement.addAttribute("title",title);
		
		mp3url = mp3url.replace("\\", "/");
		soundElement.addAttribute("source",mp3url);
		
		soundElement.addAttribute("isuse","true");

		}
		
		/** 将document中的内容写入文件中,另存为的文件 */
		XMLWriter output = null;

		/** 格式化输出,类型IE浏览一样 */

		OutputFormat format = OutputFormat.createPrettyPrint();

		/** 指定XML字符集编码 */

		format.setEncoding("utf-8");
		
		output = new XMLWriter(new OutputStreamWriter(new java.io.FileOutputStream(filename),"UTF-8"),format);

		output.write(document);

		output.close(); 

	 

		output = new XMLWriter(new OutputStreamWriter(new java.io.FileOutputStream(newfilename),"UTF-8"),format);

		output.write(document);

		output.close(); 

		/** 执行成功,需返回1 */

		returnValue = 1;
	
		}catch(Exception e){
			e.printStackTrace();
			
		}
		return returnValue;
		}
	protected Reader createReader(InputStream inputStream, String encoding) {
		try{
		return new BufferedReader(
		new InputStreamReader(inputStream,encoding)
		);
		}
		catch(Exception uee){
		 uee.printStackTrace();
		 
		}
		 
		return null;
		}
	 
	
}

[yc2503yc]

上传速度我想应该体现在后台java的处理上，可以再java上着手寻求最佳方案，flex上传就那么两种方式

[gj_wrxz]

Error: No class registered for interface 'mx.styles::IStyleManager2'.
at mx.core::Singleton$/getInstance()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\Singleton.as:111]
at mx.styles::StyleManager$/get impl()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\styles\StyleManager.as:78]
at mx.styles::StyleManager$/http://www.adobe.com/2006/flex/mx/internal::initProtoChainRoots()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\styles\StyleManager.as:144]
at Mp3Load/http://www.adobe.com/2006/flex/mx/internal::_Mp3Load_StylesInit()[D:\workspace\flextest\flex_src\Mp3Load.mxml:0]
at Mp3Load()[D:\workspace\flextest\flex_src\Mp3Load.mxml:0]
是不是有什么文件没发给出来啊 打开报错

[yc2503yc]

flex 写的很简单的啊，你直接拷贝过去用的？

[yc2503yc]

可能是sdk版本不一样，把样式什么的都去掉

[yc2503yc]

在Appliction里面<mx:Button click="uplode(event)" />




//点击上传
private function uplode(e:Event):void{
var win:Mp3Upload =Mp3Upload(PopUpManager.createPopUp(this,Mp3Upload,true));
PopUpManager.centerPopUp(win);
}

[yingxuetan]

最近也遇到这个问题了。。。

[woiff]

GOOD