Exemplo de UpLoad

[Renato Vertuam Neto]

Ola All

 

Baixei um exemplo de upload com flex e php e gostaria de mudar para java.

 

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

<mx:Application

xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:com="com.flashdev.file.*" layout="absolute"

creationComplete="initApp()" viewSourceURL="

srcview/index.html">

<mx:Script>

<![CDATA[

import mx.controls.Alert;

private const _strDomain:String = new String("http://localhost:8400/produtos/");

private const _strUploadScript:String = new String(_strDomain + "uploadFotos.jsp");

// Initalize

private function initApp():void {

Security.allowDomain(_strDomain);

}

]]>

</mx:Script>

<mx:Canvas width="600" height="400" horizontalCenter="0" verticalCenter="0">

<com:FileUpload

width="

100%" height="100%"

uploadUrl="

{_strUploadScript}"

uploadComplete="Alert.show(

'File(s) have been uploaded.', 'Upload successful')"

uploadIOError="Alert.show(

'IO Error in uploading file.', 'Error')"

uploadSecurityError="Alert.show(

'Security Error in uploading file.', 'Error')"/>

</mx:Canvas>

</mx:Application>

COMPONENTE FileUpload

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

<mx:Panel

xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:com="*"

layout="

vertical" width="100%" minWidth="400" height="100%" minHeight="200"

title="

Upload Files" creationComplete="initCom()">

<mx:Metadata>

[

Event(name="uploadComplete", type="flash.events.Event")]

[

Event(name="uploadProgress", type="flash.events.ProgressEvent")]

[

Event(name="uploadCancel", type="flash.events.Event")]

[

Event(name="uploadIOError", type="flash.events.IOErrorEvent")]

[

Event(name="uploadSecurityError", type="flash.events.SecurityErrorEvent")]

</mx:Metadata>

<mx:Script>

<![CDATA[

/*

Written by:

Dustin Andrew

dus...@flash-dev.com

www.flash-dev.com

FileUpload

Panel component for uploading files.

(Icons from http://www.famfamfam.com)

LAST UPDATED:

12/15/06

*/

import mx.controls.*;

import mx.managers.*;

import mx.events.*;

import flash.events.*;

import flash.net.*;

private var _strUploadUrl:String;

private var _refAddFiles:FileReferenceList;

private var _refUploadFile:FileReference;

private var _arrUploadFiles:Array;

private var _numCurrentUpload:Number = 0;

// Set uploadUrl

public function set uploadUrl(strUploadUrl:String):void {

_strUploadUrl = strUploadUrl;

}

// Initalize

private function initCom():void {

_arrUploadFiles =

new Array();

enableUI();

uploadCheck();

}

// Called to add file(s) for upload

private function addFiles():void {

_refAddFiles =

new FileReferenceList();

_refAddFiles.addEventListener(Event.SELECT, onSelectFile);

_refAddFiles.browse();

}

// Called when a file is selected

private function onSelectFile(event:Event):void {

var arrFoundList:Array = new Array();

// Get list of files from fileList, make list of files already on upload list

for (var i:Number = 0; i < _arrUploadFiles.length; i++) {

for (var j:Number = 0; j < _refAddFiles.fileList.length; j++) {

if (_arrUploadFiles[i].name == _refAddFiles.fileList[j].name) {

arrFoundList.push(_refAddFiles.fileList[j].name);

_refAddFiles.fileList.splice(j, 1);

j--;

}

}

}

if (_refAddFiles.fileList.length >= 1) {

for (var k:Number = 0; k < _refAddFiles.fileList.length; k++) {

_arrUploadFiles.push({

name:_refAddFiles.fileList[k].name,

size:formatFileSize(_refAddFiles.fileList[k].size),

file:_refAddFiles.fileList[k]});

}

listFiles.dataProvider = _arrUploadFiles;

listFiles.selectedIndex = _arrUploadFiles.length - 1;

}

if (arrFoundList.length >= 1) {

Alert.show(

"The file(s): \n\n• " + arrFoundList.join("\n• ") + "\n\n...are already on the upload list. Please change the filename(s) or pick a different file.", "File(s) already on list");

}

updateProgBar();

scrollFiles();

uploadCheck();

}

// Called to format number to file size

private function formatFileSize(numSize:Number):String {

var strReturn:String;

numSize = Number(numSize / 1000);

strReturn = String(numSize.toFixed(1) +

" KB");

if (numSize > 1000) {

numSize = numSize / 1000;

strReturn = String(numSize.toFixed(1) +

" MB");

if (numSize > 1000) {

numSize = numSize / 1000;

strReturn = String(numSize.toFixed(1) +

" GB");

}

}

return strReturn;

}

// Called to remove selected file(s) for upload

private function removeFiles():void {

var arrSelected:Array = listFiles.selectedIndices;

if (arrSelected.length >= 1) {

for (var i:Number = 0; i < arrSelected.length; i++) {

_arrUploadFiles[Number(arrSelected[i])] =

null;

}

for (var j:Number = 0; j < _arrUploadFiles.length; j++) {

if (_arrUploadFiles[j] == null) {

_arrUploadFiles.splice(j, 1);

j--;

}

}

listFiles.dataProvider = _arrUploadFiles;

listFiles.selectedIndex = 0;

}

updateProgBar();

scrollFiles();

uploadCheck();

}

// Called to check if there is at least one file to upload

private function uploadCheck():void {

if (_arrUploadFiles.length == 0) {

btnUpload.enabled =

false;

listFiles.verticalScrollPolicy =

"off";

}

else {

btnUpload.enabled =

true;

listFiles.verticalScrollPolicy =

"on";

}

}

// Disable UI control

private function disableUI():void {

btnAdd.enabled =

false;

btnRemove.enabled =

false;

btnUpload.enabled =

false;

btnCancel.enabled =

true;

listFiles.enabled =

false;

listFiles.verticalScrollPolicy =

"off";

}

// Enable UI control

private function enableUI():void {

btnAdd.enabled =

true;

btnRemove.enabled =

true;

btnUpload.enabled =

true;

btnCancel.enabled =

false;

listFiles.enabled =

true;

listFiles.verticalScrollPolicy =

"on";

}

// Scroll listFiles to selected row

private function scrollFiles():void {

listFiles.verticalScrollPosition = listFiles.selectedIndex;

listFiles.validateNow();

}

// Called to upload file based on current upload number

private function startUpload():void {

if (_arrUploadFiles.length > 0) {

disableUI();

listFiles.selectedIndex = _numCurrentUpload;

scrollFiles();

// Variables to send along with upload

var sendVars:URLVariables = new URLVariables();

sendVars.action =

"upload";

var request:URLRequest = new URLRequest();

request.data = sendVars;

request.url = _strUploadUrl;

request.method = URLRequestMethod.POST;

_refUploadFile =

new FileReference();

_refUploadFile = listFiles.selectedItem.file;

_refUploadFile.addEventListener(ProgressEvent.PROGRESS, onUploadProgress);

_refUploadFile.addEventListener(Event.COMPLETE, onUploadComplete);

_refUploadFile.addEventListener(IOErrorEvent.IO_ERROR, onUploadIoError);

_refUploadFile.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onUploadSecurityError);

_refUploadFile.upload(request,

"file", true);

}

}

// Cancel and clear eventlisteners on last upload

private function clearUpload():void {

_refUploadFile.removeEventListener(ProgressEvent.PROGRESS, onUploadProgress);

_refUploadFile.removeEventListener(Event.COMPLETE, onUploadComplete);

_refUploadFile.removeEventListener(IOErrorEvent.IO_ERROR, onUploadIoError);

_refUploadFile.removeEventListener(SecurityErrorEvent.SECURITY_ERROR, onUploadSecurityError);

_refUploadFile.cancel();

_numCurrentUpload = 0;

updateProgBar();

enableUI();

}

// Called on upload cancel

private function onUploadCanceled():void {

clearUpload();

dispatchEvent(

new Event("uploadCancel"));

}

// Get upload progress

private function onUploadProgress(event:ProgressEvent):void {

var numPerc:Number = Math.round((event.bytesLoaded / event.bytesTotal) * 100);

updateProgBar(numPerc);

var evt:ProgressEvent = new ProgressEvent("uploadProgress", false, false, event.bytesLoaded, event.bytesTotal);

dispatchEvent(evt);

}

// Update progBar

private function updateProgBar(numPerc:Number = 0):void {

var strLabel:String = (_numCurrentUpload + 1) + "/" + _arrUploadFiles.length;

strLabel = (_numCurrentUpload + 1 <= _arrUploadFiles.length && numPerc > 0 && numPerc < 100) ? numPerc +

"% - " + strLabel : strLabel;

strLabel = (_numCurrentUpload + 1 == _arrUploadFiles.length && numPerc == 100) ?

"Upload Complete - " + strLabel : strLabel;

strLabel = (_arrUploadFiles.length == 0) ?

"" : strLabel;

progBar.label = strLabel;

progBar.setProgress(numPerc, 100);

progBar.validateNow();

}

// Called on upload complete

private function onUploadComplete(event:Event):void {

_numCurrentUpload++;

if (_numCurrentUpload < _arrUploadFiles.length) {

startUpload();

}

else {

enableUI();

clearUpload();

dispatchEvent(

new Event("uploadComplete"));

}

}

// Called on upload io error

private function onUploadIoError(event:IOErrorEvent):void {

clearUpload();

var evt:IOErrorEvent = new IOErrorEvent("uploadIoError", false, false, event.text);

dispatchEvent(evt);

}

// Called on upload security error

private function onUploadSecurityError(event:SecurityErrorEvent):void {

clearUpload();

var evt:SecurityErrorEvent = new SecurityErrorEvent("uploadSecurityError", false, false, event.text);

dispatchEvent(evt);

}

// Change view state

private function changeView():void {

currentState = (currentState ==

"mini") ? "" : "mini";

}

]]>

</mx:Script>

<mx:states>

<mx:State name="mini">

<mx:SetProperty name="height" value="60"/>

<mx:SetProperty name="minHeight" value="60"/>

<mx:SetStyle target="{btnView}" name="icon" value="@Embed('assets/application_put.png')"/>

</mx:State>

</mx:states>

<mx:transitions>

<mx:Transition fromState="*" toState="*">

<mx:Resize target="{this}" duration="1000"/>

</mx:Transition>

</mx:transitions>

<mx:Canvas width="100%" height="100%">

<mx:DataGrid id="listFiles" left="0" top="0" bottom="0" right="0"

allowMultipleSelection="

true" verticalScrollPolicy="on"

draggableColumns="

false" resizableColumns="false" sortableColumns="false">

<mx:columns>

<mx:DataGridColumn headerText="File" dataField="name" wordWrap="true"/>

<mx:DataGridColumn headerText="Size" dataField="size" width="75" textAlign="right"/>

</mx:columns>

</mx:DataGrid>

</mx:Canvas>

<mx:ControlBar horizontalAlign="center" verticalAlign="middle">

<mx:Button id="btnAdd" toolTip="Add file(s)" click="addFiles()" icon="@Embed('assets/add.png')" width="26"/>

<mx:Button id="btnRemove" toolTip="Remove file(s)" click="removeFiles()" icon="@Embed('assets/delete.png')" width="26"/>

<mx:ProgressBar id="progBar" mode="manual" label="" labelPlacement="center" width="100%"/>

<mx:Button id="btnCancel" toolTip="Cancel upload" icon="@Embed('assets/cancel2.png')" width="26" click="onUploadCanceled()"/>

<mx:Button label="Upload" toolTip="Upload file(s)" id="btnUpload" click="startUpload()" icon="@Embed('assets/bullet_go.png')"/>

<mx:Button id="btnView" toolTip="Show/Hide file(s)" icon="@Embed('assets/application_get.png')" width="26" click="changeView()"/>

</mx:ControlBar>

</mx:Panel>

 

Sou novato em AS e Flex e não consegui entender no codigo acima na function startUpload() o que eu devo receber no meu codigo java?

Testei algumas coisas e nao funcionou no lado do Java ele so recebe null, acredito que estou errando algo.

Se alguem tiver alguma ideia.

 

Grato

 

Renato

[Davidson Silva]

Bem fiz um upload com java , mas não usei JSP ......usei uma clasee java mesmo.
Posso te passar mais tarde e vc dá  uma olhada e melhorada ....rsrsrs
Pode ser ?

2008/7/16 Renato Vertuam Neto <ver...@gmail.com>:

[Renato Vertuam Neto]

Ficaria agradecido

 

Renato

2008/7/17 Davidson Silva <davidson...@gmail.com>:

[Davidson Silva]

Brother é o seguinte ....Usei essa classe aqui

/*******************************************************************************
 * Copyright (c) 2001, 2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/


    import java.io.DataInputStream;
    import java.io.FileOutputStream;
    import java.io.IOException;

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



    public class FileUpload extends HttpServlet {

       private static final long serialVersionUID = 1L;


       public FileUpload() {
       }

       public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
          doGet(request, response);
       }

       @SuppressWarnings("deprecation")
       public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

          String contentType = request.getContentType();
          String diretorio = request.getRealPath("assets/images/cardapio");
             // System.getProperty("user.home")+java.io.File.separator+"imagens"
         // +java.io.File.separator+"cardapio"+java.io.File.separator;
          String nomeImagem = "/" + request.getParameter("nomeImagem");
         
          System.out.println(diretorio);
          //System.out.println(request.getPathInfo());
         
         
         
          try {
             if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0))
             {
                DataInputStream in = new DataInputStream(request.getInputStream());
                int formDataLength = request.getContentLength();
                byte dataBytes[] = new byte[formDataLength];
                int byteRead = 0;
                int totalBytesRead = 0;

                while (totalBytesRead < formDataLength)
                {
                   byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
                   totalBytesRead += byteRead;
                }

                String file = new String(dataBytes);
               
                int lastIndex = contentType.lastIndexOf("=");
                String boundary = contentType.substring(lastIndex + 1,contentType.length());

                int pos;
                pos = file.indexOf("filename=\"");
                pos = file.indexOf("\n", pos) + 1;
                pos = file.indexOf("\n", pos) + 1;
                pos = file.indexOf("\n", pos) + 1;

                int boundaryLocation = file.indexOf(boundary, pos) - 4;
                int startPos = ((file.substring(0, pos)).getBytes()).length;
                int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;

                // Salva no diretorio especificado
                FileOutputStream fileOut = new FileOutputStream(diretorio + nomeImagem);

                fileOut.write(dataBytes, startPos, (endPos - startPos));
                fileOut.flush();
                fileOut.close();
               
                fileOut = new FileOutputStream("sua pasta" + nomeImagem);
                fileOut.write(dataBytes, startPos, (endPos - startPos));
                fileOut.flush();
                fileOut.close();
               
             }
          } catch (Exception e) {
             e.printStackTrace();
          }
       }
}

[Renato Vertuam Neto]

Valeu, vou testar agora mesmo,

 

Obrigado

[Renato Vertuam Neto]

 

Consegui fazer com JSP mesmo valeu pela ajuda Davidson.

 

Até que ficou legal da pra fazer o upload de varios arquivos.

 

Abaixo segue os 2 arquivos XML e o JSP para quem quiser dar uma olhada e quem sabe uma melhorada.

 

T+

 

Valeu Renato.

 

____________________

Renato Vertuam Neto

ver...@gmail.com

Oyama-Shi Tochigi-Ken

Japan

090-7678-6337

 

- FileUploadApp.xml

 

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

<mx:Application

xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:com="com.flashdev.file.*" layout="absolute"

creationComplete="initApp()" viewSourceURL="

srcview/index.html">

<mx:Script>

<![CDATA[

import mx.controls.Alert;

private const _strDomain:String = new String("http://localhost:8400/comunidade/");

private const _strUploadScript:String = new String(_strDomain + "uploadFotos.jsp");

//private const _strUploadScript:String = new String(_strDomain + "upload");

// Initalize

private function initApp():void {

Security.allowDomain(_strDomain);

}

]]>

</mx:Script>

<mx:Canvas width="600" height="400" horizontalCenter="0" verticalCenter="0">

<com:FileUpload

width="

100%" height="100%"

uploadUrl="

{_strUploadScript}"

uploadComplete="Alert.show(

'File(s) have been uploaded.', 'Upload successful')"

uploadIOError="Alert.show(

'IO Error in uploading file.', 'Error')"

uploadSecurityError="Alert.show(

'Security Error in uploading file.', 'Error')"/>

</mx:Canvas>

</mx:Application>

 

 

FileUpload.xml

var tipos:FileFilter = new FileFilter("Arquivos de Imagem *.jpg; *.jpeg; *.gif; *.png"

,

"*.jpg; *.jpeg; *.gif; *.png");

var tiposArray:Array = new Array(tipos);

_refAddFiles =

new FileReferenceList();

_refAddFiles.addEventListener(Event.SELECT, onSelectFile);

_refAddFiles.browse(tiposArray);

}

;

sendVars.nomeImagem = listFiles.selectedItem.name.toString();

// Nome do Arquivo

var request:URLRequest = new URLRequest();

request.data = sendVars;

request.url = _strUploadUrl;

request.method = URLRequestMethod.POST;

_refUploadFile =

new FileReference();

_refUploadFile = listFiles.selectedItem.file;

_refUploadFile.addEventListener(ProgressEvent.PROGRESS, onUploadProgress);

_refUploadFile.addEventListener(Event.COMPLETE, onUploadComplete);

_refUploadFile.addEventListener(IOErrorEvent.IO_ERROR, onUploadIoError);

_refUploadFile.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onUploadSecurityError);

_refUploadFile.upload(request,

"file", false);

}

}

<mx:DataGridColumn headerText="Arquivo" dataField="name" wordWrap="true"/>

<mx:DataGridColumn headerText="Tamanho" dataField="size" width="75" textAlign="right"/>

</mx:columns>

</mx:DataGrid>

</mx:Canvas>

<mx:ControlBar horizontalAlign="center" verticalAlign="middle">

<mx:Button id="btnAdd" toolTip="Add file(s)" click="addFiles()" icon="@Embed('assets/add.png')" width="26"/>

<mx:Button id="btnRemove" toolTip="Remove file(s)" click="removeFiles()" icon="@Embed('assets/delete.png')" width="26"/>

<mx:ProgressBar id="progBar" mode="manual" label="" labelPlacement="center" width="100%"/>

<mx:Button id="btnCancel" toolTip="Cancel upload" icon="@Embed('assets/cancel2.png')" width="26" click="onUploadCanceled()"/>

<mx:Button label="Upload" toolTip="Upload file(s)" id="btnUpload" click="startUpload()" icon="@Embed('assets/bullet_go.png')"/>

<mx:Button id="btnView" toolTip="Show/Hide file(s)" icon="@Embed('assets/application_get.png')" width="26" click="changeView()"/>

</mx:ControlBar>

</mx:Panel>

uploadFotos.jsp

 

<%@ page

import="java.io.*"

import="java.util.*"

import="org.apache.commons.io.*"

import="org.apache.commons.io.output.*"

import="org.apache.commons.fileupload.*"

contentType="text/plain"

%>

<%

boolean isMultipart = FileUpload.isMultipartContent(request);

if (isMultipart) {

// Create a new file upload handler

DiskFileUpload upload = new DiskFileUpload();

// Set upload parameters

upload.setSizeMax(50*1024*1024); //50Mb

upload.setRepositoryPath("c:/temp");

// Parse the request

List items = upload.parseRequest(request);

Iterator it = items.iterator();

while (it.hasNext()) {

FileItem fitem = (FileItem) it.next();

if (!fitem.isFormField()) {

%><%= fitem.getName() %> - <%= fitem.getSize() %> bytes

<%

}

}

}

%>