测试一
<mx:RemoteObject id="ud" destination="UserDao">
<mx:method name="getAllUser" result="onResult(event)" fault="onFault()"/>
</mx:RemoteObject>
测试二
<mx:RemoteObject id="UserDao" destination="UserDao">
<mx:method name="getAllUser" result="onResult(event)" fault="onFault()"/>
</mx:RemoteObject>
确定你呼叫的java端名字正确与否
还有你那script脚本最好写到所有app子组件的最上面。算是规范吧