flex接收flashvars的方法和flash不一样,在flash中是用“root.loaderInfo.parameters”或“stage.loaderInfo.parameters”来取得传递的参数，而在flex中则要用“Application.application.parameters”来取得。看下面的代码，我们将利用“Application.application.parameters”的方法来取得flashvars传递过来的两个参数：myName和myHometown。
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initVars()">
<mx:Script>
<![CDATA[
// Declare bindable properties in Application scope.
[Bindable]
public var myName:String;
[Bindable]
public var myHometown:String;
// Assign values to new properties.
private function initVars():void {
myName = Application.application.parameters.myName;
myHometown = Application.application.parameters.myHometown;
}
]]>
</mx:Script>
<mx:VBox>
<mx:HBox>
<mx:Label text="Name: "/>
<mx:Label text="{myName}" fontWeight="bold"/>
</mx:HBox>
<mx:HBox>
<mx:Label text="Hometown: "/>
<mx:Label text="{myHometown}" fontWeight="bold"/>
</mx:HBox>
</mx:VBox>
</mx:Application>
下面是网页代码，可以看下效果：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" style="width:100%;height:100%;margin:0;padding:0;">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>julabs flex接收flashvar参数值</title>
</head>
<body style="width:100%;height:100%;margin:0;padding:0;">
<div style="width:100%;height:100%;margin:0;padding:0;">
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,79,0"
width="100%"
height="100%"
id="FlashMovie"
align="middle">
<param name="allowScriptAccess" value="sameDomain" />
<param name="FlashVars" value="myName=julabs&myHometown=china" />
<param name="movie" value="/blog/demo/getflashvarsinflex.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#ffffff" />
<embed src="/blog/demo/getflashvarsinflex.swf" FlashVars="myName=julabs&myHometown=china" quality="high" bgcolor="#ffffff" width="100%" height="100%" NAME="FlashMovie" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" swLiveConnect="true" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>
</div>
</body>
</html>
其中需要注意的是如果你想在火狐和Opera中也能正常使用这项功能的话一定要在网页中的flash代码中使用“embed”标签，并且一定要在“embed”标签加入“FlashVars”参数的值，否则在火狐和Opera中就取得不到“FlashVars”所传递的值。当然用swfobject向Flash中写入“FlashVars”值是最简单的方法了，详细请查看《翻译：SWFOBJECT 2.0官方文档》。
