[Flex] flex+php实现文件的上传

网上找了一个用fileRefrenceList作为文件的选择，貌似用这种方法不能限定上传文件的类型，不过经过测试，确实能运行的。

为方便起见，把它封装成了一个类，并加上了注释，便于大家和自己以后使用。


UploadImage.as:

package exchage

{

import flash.events.Event;

import flash.net.FileReference;

import flash.net.FileReferenceList;

import flash.net.URLRequest;

import mx.controls.Alert;

public class UploadImage

{

private var urlRequest:URLRequest;

private var fileReferenceList:FileReferenceList;

private var serverSideScript:String = http://www.路径/uploadImage.php; //处理上传的脚本文件路径

[Bindable]

public var statusText:String; //记录上传文件状态

public function init():void

{

urlRequest = new URLRequest(serverSideScript); //连接上

fileReferenceList = new FileReferenceList();

fileReferenceList.addEventListener(Event.SELECT, fileSelectedHandler); //设置文件选择监听

}

public function uploadFile():void

{

init();

fileReferenceList.browse(); //打开浏览对话框

}

private function fileSelectedHandler(event:Event):void //文件选择监听响应函数

{

var fileReference:FileReference;

var fileReferenceList:FileReferenceList = FileReferenceList(event.target);

var fileList:Array = fileReferenceList.fileList;

fileReference = FileReference(fileList[0]);

fileReference.addEventListener(Event.COMPLETE, uploadCompleteHandler); //设置上传过程结束监听

fileReference.upload(urlRequest);

statusText = "上传中...";

}

private function uploadCompleteHandler(event:Event):void //文件上传完毕监听相应函数

{

statusText = "上传成功的文件: " + event.target.name;

}

}

}

uploadImage.php

<?php

$uploaddir = 'uploadImages/';

$uploadfile = $uploaddir . basename($_FILES['Filedata']['name']);

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

move_uploaded_file($temploadfile , $uploadfile);

?>