Flex与php结合的上传功能代码

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

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

layout="absolute" fontSize="12" creationComplete="initApp()">

<mx:Script>

<![CDATA[

/**

* Flex与php结合的上传功能

* Author:[url=http://www.phpcq.com]www.phpcq.com[/url] PHP技术博客

*/

import mx.controls.Text;

import mx.controls.Alert;

import flash.events.Event;

import flash.net.FileReference;

import flash.net.URLRequest;

import flash.net.FileFilter;

import flash.net.URLVariables;

import flash.events.ProgressEvent;

import mx.managers.CursorManager;

import mx.utils.StringUtil;

[Bindable]

private var file:FileReference;

private var fileName:String = "";

internal function initApp():void{

//FileReference 类提供了在用户计算机和服务器之间上载和下载文件的方法

file = new FileReference();

//选定文件后Event.SELECT事件触发

file.addEventListener(Event.SELECT,onSelect);

//获取上传进度

file.addEventListener(ProgressEvent.PROGRESS,progressHandler);

}

internal function selectFile():void{

//过滤文件

var imgType:FileFilter = new FileFilter("png","*.png");

var allType:Array = new Array(imgType);

//仅显示以上过滤后的文件

file.browse(allType);

}

internal function startUp():void{

var request:URLRequest =

new URLRequest("http://localhost/up/src/upload.php");//后台程序

fileName = new Date().getTime().toString()+".png";//文件重命名

request.data = new URLVariables("filename="+fileName);

if(StringUtil.trim(pic_txt.text) != ''){//当文件不能为空时

file.upload(request);

CursorManager.setBusyCursor();//设置鼠标为忙碌状态

} else {

Alert.show("上传文件不能为空!");

}

}

internal function onSelect(evt:Event):void{

pic_txt.text = file.name;//将文件名保存至文本框里



}

internal function progressHandler(e:ProgressEvent):void{

if(e.bytesLoaded == e.bytesTotal){//这里是至上传进度---上传成功后

CursorManager.removeBusyCursor();//取消忙碌状态



}

}

]]>

</mx:Script>

<!--文本框被事件触发为平时所见的文本域-->

<mx:TextInput x="235.5" y="177" height="21" id="pic_txt"

width="227" editable="false"/>

<mx:Button x="470.5" y="177" label="选择文件" click="selectFile()"/>

<mx:Button x="556.5" y="177" label="上传文件" click="startUp()"/>

<mx:Text x="173.5" y="178" text="上传文件" />

</mx:Application>

后台程序upload.php中的代码如下:

<?php

$imgName = $_GET['filename'];

$file = $_FILES['Filedata']['tmp_name'];

move_uploaded_file($file,$imgName);

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