单文件上传-flex版本
1.web.config
appSettings配置节
<add key="UploadFileUrl" value="http://file.mydomain.com/" />
<add key="UploadFilePath" value="E:\file.mydomain.com\uploadfile\"/>
2.asp.net文件接收保存处理程序
//UploadHandler.ashx
<%@ WebHandler Language="C#" Class="UploadHandler" %>
using System;
using System.Web;
public class UploadHandler : IHttpHandler
{
private string uploadFolder = System.Configuration.ConfigurationManager.AppSettings["UploadFilePath"];
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
HttpFileCollection files = context.Request.Files;
if (files.Count > 0)
{
string orgName = "MyDomain";
string path = uploadFolder + orgName;
System.IO.Directory.CreateDirectory(path + "\\");
HttpPostedFile file = files[0];
if (file != null && file.ContentLength > 0)
{
string guid = System.Guid.NewGuid().ToString();
string savePath = path + "/" + guid + "_" + context.Request.Form["fileName"];
file.SaveAs(savePath);
string url = System.Configuration.ConfigurationManager.AppSettings["UploadFileUrl"] + orgName + "/" + guid + "_" + context.Request.Form["fileName"];
context.Response.Write(url);
}
}
else
{
context.Response.Write("");
context.Response.End();
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
3.flex应用程序，
//本人使用flex builder 4.0
//UploadFile.mxml
//此段程序修改自cnblogs的某一个仁兄的代码，等我找回来了，再把他的文章url贴在这里。google搜过来的。
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="1024" minHeight="768">
<mx:Panel x="2" y="2" width="396" height="244" layout="absolute"
title="FrontSql上传文件" fontSize="12">
<mx:HDividedBox x="10" y="10" width="377" height="193">
<mx:Canvas id="left" backgroundColor="#D7F4FF" height="193" width="358">
<mx:TextInput x="4" y="51" id="txtFile" text="{stateText}" width="271"/>
<mx:Button x="279" y="52" label="选择" fontWeight="normal" click="{file.browse()}"/>
<mx:Button x="117" y="90" label="确定上传" width="69" fontWeight="normal" click="onUpLoad()"/>
<mx:Label x="5" y="14" text="请选择一个文件上传" width="268"/>
<mx:Label x="6" y="130" width="269" height="22" id="lblResult"/>
<mx:TextInput x="6" y="155" width="269" id="lblURL"/>
<s:Button x="203" y="90" label="关闭" id="bClose" click="onClose()"/>
<s:Button x="281" y="156" label="查看" id="bView" click="onView()"/>
</mx:Canvas>
</mx:HDividedBox>
</mx:Panel>
<fx:Script>
<![CDATA[
import flash.net.navigateToURL;
import mx.controls.Alert;
[Bindable]
private var stateText:String = "";
private var file:FileReference = new FileReference();
private var isSelectedFile:Boolean = false;
protected override function createChildren():void
{
super.createChildren();
file.addEventListener(Event.SELECT,onSelected);
file.addEventListener(Event.COMPLETE,onCompleted);
file.addEventListener(ProgressEvent.PROGRESS,onProgress);
file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,onUploadCompleteData);
}
internal function onSelected(evt:Event):void
{
stateText = "选择了文件:" + file.name;
isSelectedFile = true;
}
internal function onCompleted(evt:Event):void
{
lblResult.text = "上传完毕！";
lblURL.visible = true;
bView.visible = true;
ExternalInterface.call("setURL", lblURL.text);
}
internal function onUploadCompleteData(evt:DataEvent):void
{
lblURL.text = evt.data;
ExternalInterface.call("setURL", lblURL.text);
}
internal function onProgress(evt:ProgressEvent):void
{
lblResult.text = "已上传： " + Math.round(100 * evt.bytesLoaded / evt.bytesTotal) + "%";
}
/**
* 调用FileReference的实例方法upload()实现文件上传
* */
internal function onUpLoad():void
{
if(isSelectedFile)
{
if(file.size > 0)
{
stateText = "正在上传文件：" + file.name;
}
var request:URLRequest = new URLRequest();
request.url="http://www.mydomain.com/UpLoadHandler.ashx";
file.upload(request);
}
}
internal function onClose():void
{
// call js
ExternalInterface.call("setURL", lblURL.text);
ExternalInterface.call("closeWindowURL",lblURL.text);
}
internal function onView():void
{
if(lblURL.text != ""){
var http://www.cnblogs.com/xushop/admin/URLRequest = new URLRequest(lblURL.text);
flash.net.navigateToURL(url,"_blank");
//ExternalInterface.call("viewURL", lblURL.text);
}
else{
Alert.show("没有文件可看");
}
}
]]>
</fx:Script>
</s:Application>
4.修改index.template.html文件
//增加一段js
<script type="text/javascript">
function closeWindow(){
var u = document.getElementById("urlValue");
window.returnValue = u.value;
window.close();
}
function closeWindowURL(url){
window.returnValue = url;
window.close();
}
function setURL(url){
var u = document.getElementById("urlValue");
u.value = url;
//alert(url);
//alert(u.value);
}
function viewURL(url)
{
window.open(url);
}
window.onunload = closeWindow;
</script>
5.把编译好的flash上传到站点/uploadfile下面
6.使用
<HTML>
<HEAD>
<script language="javascript" >
function ShowFlexUploadFile(fileUrlTextBox){
if(fileUrlTextBox != ""){
var currentFileUrlTextBox = document.all[fileUrlTextBox];
var result=window.showModalDialog("/uploadfile/UploadFile.html","","dialogWidth:400px;dialogHeight:300px;center=yes;");
if(result == "") return;
if(typeof(result)=="undefined") return;
currentFileUrlTextBox.value = result;
}
}
</script>
</HEAD>
<BODY>
<input type='text' ID="txtFileUrl" style="width:220px" /> <a href="javascript:void(0)" title="Upload File" onclick="javascript:ShowFlexUploadFile('txtFileUrl');" >Upload</a>
</BODY>
</HTML>
