积少成多Flash(8) - ActionScript 3.0 网页之获取参数，JavaScript与ActionScript之间的相互调用

/* 
* 注：    
* 1、如果需要 Flash 与 JavaScript 交互，那么包含 swf 文件的 html 标记必须要有 id 
* 2、如跨域调用，需要设置相关的插件参数，如 <param name="allowScriptAccess" value ="always" /> 
* 3、Flash端的相关安全类配置：类似 flash.system.Security.allowDomain("*"); 
*/ 
package    
{ 
        import flash.display.MovieClip; 
        import flash.external.ExternalInterface; 

        public class Main extends MovieClip 
        { 
                public function Main():void 
                { 
                        loadVarsDemo(); 
                         
                        asCallJS(); 
                         
                        jsCallAS(); 
                } 
                 
                 
                // 获取页面端配置的参数 
                // 下面的示例用于读取页面端的如下配置    
                // <param name="flashVars" value="name=webabcd&age=29" /> 
                // <param name="movie" value="Demo.swf?dateOfBirth=1980-02-14" /> 
                private function loadVarsDemo():void 
                { 
                        lblVars.text =    
                                "姓名：" + stage.loaderInfo.parameters["name"] 
                                + "    " 
                                + "年龄：" + stage.loaderInfo.parameters["age"] 
                                + "    " 
                                + "生日：" + stage.loaderInfo.parameters["dateOfBirth"]; 
                                 
                        lblSwfUrl.text = stage.loaderInfo.url; 
                } 
                 
                 
                // ActionScript 调用 JavaScript 
                private function asCallJS():void 
                { 
                        // 调用指定的 JavaScript 端的函数，并顺序指定传递给 JavaScript 端函数的参数 
                        ExternalInterface.call("jsMethod", "param1", "param2"); 
                } 
                 
                 
                // JavaScript 调用 ActionScript 时，ActionScript 端的函数 
                private function jsCallAS():void 
                { 
                        // 注册一个需要被 JavaScript 调用的函数 
                        ExternalInterface.addCallback("asMethod", output);        
                } 
                 
                public function output(p1:String, p2:String):void 
                {        
                        lblResult.text = "参数1：" + p1 + " 参数2：" + p2 
                }     
        } 
}

< html  xmlns ="http://www.w3.org/1999/xhtml"  xml:lang ="zh_cn"  lang ="zh_cn" > 
< head > 
< meta  http-equiv ="Content-Type"  content ="text/html; charset=gb2312"  /> 
< title >Demo </title> 
< script  language ="javascript" >AC_FL_RunContent = 0; </script> 
< script  src ="AC_RunActiveContent.js"  language ="javascript" > </script> 
</head> 
< body  bgcolor ="#ffffff" > 

< script  type ="text/javascript" > 

        Request = { 
                // 根据指定的名称取 url 参数值 
                QueryString : function(name){ 
                     var svalue = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]*)(\&?)","i")); 
                     return svalue ? svalue[1] : svalue; 
                }, 
                 
                // 取 url 参数字符串 
                Query : function(){ 
                     var svalue = location.search.match(new RegExp("[\?](.*)","i")); 
                     return svalue ? svalue[1] : svalue; 
                } 
        } 
         
        // 根据指定的名称取 url 参数值 
        alert(Request.QueryString("param")); 
         
        // 取 url 参数字符串 
        alert(Request.Query()); 
         
</script> 

< script  type ="text/javascript" > 

        // ActionScript 调用 JavaScript 时，JavaScript 端的函数 
        function jsMethod(p1, p2) 
        { 
                alert("参数1：" + p1 + " 参数2：" + p2); 
        } 

        // JavaScript 调用 ActionScript 
        window.onload = function() 
        { 
                var swfObj = document.getElementById('Demo');        
         
                // asMethod 为 ActionScript 端注册的可被 JavaScript 调用的函数 
                swfObj.asMethod("param1", "param2"); 
        } 
         
</script> 

< object  classid ="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"  codebase ="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0"  width ="550"  height ="400"  id ="Demo"  align ="middle" > 
         < param  name ="allowScriptAccess"  value ="sameDomain"  /> 
         < param  name ="allowFullScreen"  value ="false"  /> 
         < param  name ="movie"  value ="Demo.swf?dateOfBirth=1980-02-14"  /> 
         < param  name ="quality"  value ="high"  /> 
         < param  name ="bgcolor"  value ="#ffffff"  />         
         < embed  src ="Demo.swf"  quality ="high"  bgcolor ="#ffffff"  width ="550"  height ="400"  name ="Demo"  align ="middle" allowScriptAccess ="sameDomain"  allowFullScreen ="false"  type ="application/x-shockwave-flash"  pluginspage ="http://www.macromedia.com/go/getflashplayer"  /> 
         < param  name ="flashVars"  value ="name=webabcd&age=29"  /> 
</object> 

</body> 
</html>