as3 和PHP 后台交互技巧

  as3 和PHP 后台交互技巧

第一种 不传参 直接读取PHP文件

btn.addEventListener(MouseEvent.CLICK,loadTxt);

function loadTxt(evt:MouseEvent):void

{

       var urlLoader:URLLoader=new URLLoader();

urlLoader.dataFormat=URLLoaderDataFormat.VARIABLES;

      urlLoader.load(new URLRequest("http://localhost/as3/url2.php"));

       urlLoader.addEventListener(Event.COMPLETE,finish);

}

function finish(evt:Event):void

{

       var mydata:URLVariables=URLVariables((evt.currentTarget as URLLoader).data);

mytxt.text="国家是:"+mydata.state+" ";

mytxt.text+="var1是:"+mydata.var1;

}

php端代码：

<?

$state="中华人民共和国";

$var1="我爱你";

echo "state=".$state."&var1=".$var1;

?>

第二种 无参数 读取XML文件

btn.addEventListener(MouseEvent.CLICK,loadTxt);

function loadTxt(evt:MouseEvent):void

{

       var urlLoader:URLLoader=new URLLoader();

      urlLoader.load(new URLRequest("data.xml"));

       urlLoader.addEventListener(Event.COMPLETE,finish);

}

function finish(evt:Event):void

{

       var mydatas:XML=XML((evt.currentTarget as URLLoader).data);

mytxt.text=mydatas.c1.toString()+","+mydatas.c2.toString();

}

xml文件内容：

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

<cities>

<c1>北京</c1>

<c2>上海</c2>

</cities>

上述代码结果：

北京,上海

第三种 无参数 PHP生成XML文件

btn.addEventListener(MouseEvent.CLICK,loadTxt);

function loadTxt(evt:MouseEvent):void

{

       var urlLoader:URLLoader=new URLLoader();

      urlLoader.load(new URLRequest("http://localhost/as3/xml.php"));

       urlLoader.addEventListener(Event.COMPLETE,finish);

}

function finish(evt:Event):void

{

       var mydatas:XML=XML((evt.currentTarget as URLLoader).data);

mytxt.text=mydatas.c1.toString()+","+mydatas.c2.toString();

}

php端:

<?

//你可以使用php操作xml的函数

//这里为了简单起见只是echo出来

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

echo "<cities>";

echo "<c1>北京</c1>";

echo "<c2>上海</c2>";

echo "</cities>";

?>

第四种 GET 传参

System.useCodePage=true;

btn.addEventListener(MouseEvent.CLICK,loadTxt);

function loadTxt(evt:MouseEvent):void

{

       var urlLoader:URLLoader=new URLLoader();

var request:URLRequest=new URLRequest();

request.url="http://www.baidu.com/s";

request.method=URLRequestMethod.GET;

request.data="wd=flash";

       urlLoader.load(request);

       urlLoader.addEventListener(Event.COMPLETE,finish);

}

function finish(evt:Event):void

{

    mytxt.text=(evt.currentTarget as URLLoader).data;

}

第五种 POST 传参

System.useCodePage=true;

btn.addEventListener(MouseEvent.CLICK,loadTxt);

function loadTxt(evt:MouseEvent):void

{

       var urlLoader:URLLoader=new URLLoader();

var request:URLRequest=new URLRequest();

var vars:URLVariables=new URLVariables();

vars.wd="flash";

request.url="http://www.baidu.com/s";

request.method=URLRequestMethod.GET;

request.data=vars;

       urlLoader.load(request);

       urlLoader.addEventListener(Event.COMPLETE,finish);

}

function finish(evt:Event):void

{

    mytxt.text=(evt.currentTarget as URLLoader).data;

}

这里data是URLVariables是值对，注意区别