JavaScript 调用 ActionScript

MXML:

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

< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"  xmlns ="*"
    creationComplete ="onCreationComplete()" >

     < mx:Script  source ="ExternalInterfaceJSAS.as"   />

     < mx:Canvas  width ="100%"  height ="100%" >
         < mx:Panel  x ="0"  y ="0"  height ="300"  width ="500"  title ="ExternalInterface : JavaScript to Flash" >
             < mx:Canvas  height ="100%"  width ="100%" >
                 < mx:TextArea  x ="8"  y ="9"  width ="464"  height ="250"  id ="tArea" />
             </ mx:Canvas >
         </ mx:Panel >
     </ mx:Canvas >
</ mx:Application >

 
ExternalInterfaceJSAS.as:

import flash.events.MouseEvent;
import flash.external.ExternalInterface;
import flash.system.Security;

private  function  onCreationComplete(): void
... {
    Security.allowDomain("*");
    submitButton.addEventListener("click", onSubmitClick);
}

private  function  onSubmitClick(event:MouseEvent): void
... {
    //we need to make sure that ExternalInterface is available
    //If you are running in StandAlone player, then this will return false
    if(ExternalInterface.available)
    ...{
        var s:String = tInput.text;
        
        //call the javascript function
        ExternalInterface.call("displayString", s);
    }
}

HTML:

< html >
< head >
< title > ExternalInterfaceJSAS </ title >
< style > ...
body {...}{ margin: 0px;
 overflow:hidden }
</ style >

< script  language ="JavaScript" > ...

    //called when send button is pressed
    function doSubmit()
    ...{
        //get the data from the TextArea
        var ta = document.getElementById("outputField");
        sendToFlash(ta.value);
    }

    function sendToFlash(input)
    ...{
        //get access to the flash player in the page with an ID of fp
        var flash = (navigator.appName.indexOf ("Microsoft") !=-1)?window["fp"]:document["fp"];
        
        //call the function in flash
        flash.displayString(input);
    }
</ script >


</ head >
< body  scroll ='no' >
< object  id ='fp' 
     classid ='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000'
     codebase ='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,5,0,0'
     height ='300'  width ='450' >
     
     < param  name ='flashvars'  />
     < param  name ='src'  value ='ExternalInterfaceJSAS.swf' />
    
     < embed  name ='fp'
     pluginspage ='http://www.macromedia.com/go/getflashplayer'
     allowScriptAccess ='always'
     src ='ExternalInterfaceJSAS.swf'  height ='300'
     width ='500'  />
</ object >

< form >
     < textarea  id ="outputField"  style ="width:450px;height:50px" ></ textarea >
     < br  />
     < input  type ="button"  value ="Send to Flash"  onclick ="doSubmit()" />
</ form >
</ body >
</ html >
    

需要注意的地方是不能直接打开html，需要放在服务器上运行，如Tomcat上