FLEX-ComboBox绑定JAVA返回的数据源（RemoteObject）

     此文转载自：  http://blog.csdn.net/matianyi0307/archive/2009/03/20/4008228.aspx

 

     场景：底层通过JAVA从数据库中取出Authority中的职位信息（rid： 职位ID，rname：职位名称），将其存入HashMap中，并将HashMap全部存入一个List返回给Flex，并绑定在ComboBox上。

FLEX Display组件：

 

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

<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="712" height="563" showCloseButton="true" title="新建用户" x="288" y="226" xmlns:ns1="ui.panel.admin.*" initialize="getPos()">
    <mx:Script>
        <[CDATA[
            import mx.collections.ArrayCollection;
            import mx.controls.List;
            import mx.rpc.events.ResultEvent;
            import mx.controls.Alert;
            [bindable]
            private var posArray:ArrayCollection = new ArrayCollection();

            function getPos():void{
                hasuser.getRoles();
            }

            function getPosition(event:ResultEvent):void{
                posArray = event.result as ArrayCollection;
                position.dataProvider = posArray;
            }
function close():void{
                                trace(""+position.selectedItem.rid);
                        }
        ]]>
    </mx:Script>
    <mx:RemoteObject id="hasuser" destination="islogin">
    <mx:method name="getRoles" result="getPosition(event)"/>
    </mx:RemoteObject>

    <mx:ComboBox x="426" y="249" id="position" width="160.75" editable="false" color="#0B333C" fontSize="12" prompt="请选择职位..." fontWeight="bold" labelField="rname" close="close()"></mx:ComboBox>
</mx:TitleWindow>

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

<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="712" height="563" showCloseButton="true" title="新建用户" x="288" y="226" xmlns:ns1="ui.panel.admin.*" initialize="getPos()">
	<mx:Script>
		<[CDATA[
			import mx.collections.ArrayCollection;
			import mx.controls.List;
			import mx.rpc.events.ResultEvent;
			import mx.controls.Alert;
			[bindable]
			private var posArray:ArrayCollection = new ArrayCollection();
						
			function getPos():void{
				hasuser.getRoles();
			}
			
			function getPosition(event:ResultEvent):void{
				posArray = event.result as ArrayCollection;
				position.dataProvider = posArray;
			}
function close():void{
                                trace(""+position.selectedItem.rid);
                        }
		]]>
	</mx:Script>
	<mx:RemoteObject id="hasuser" destination="islogin">
	<mx:method name="getRoles" result="getPosition(event)"/>
	</mx:RemoteObject>
		
	<mx:ComboBox x="426" y="249" id="position" width="160.75" editable="false" color="#0B333C" fontSize="12" prompt="请选择职位..." fontWeight="bold" labelField="rname" close="close()"></mx:ComboBox>
</mx:TitleWindow>

 

其中close()函数是来测试选中项目的值。

 

RemoteObject配置：

 

<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service" class="flex.messaging.services.RemotingService">

    <adapters>
        <adapter-definition id="java-object"
            class="flex.messaging.services.remoting.adapters.JavaAdapter"
            default="true" />
    </adapters>

    <default-channels>
        <channel ref="my-amf" />
    </default-channels>

    <destination id="islogin">
        <properties>
            <source>com.pmo.action.RolesAction</source>
        </properties>
    </destination>

</service>

<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service" class="flex.messaging.services.RemotingService">

	<adapters>
		<adapter-definition id="java-object"
			class="flex.messaging.services.remoting.adapters.JavaAdapter"
			default="true" />
	</adapters>

	<default-channels>
		<channel ref="my-amf" />
	</default-channels>

	<destination id="islogin">
		<properties>
			<source>com.pmo.action.RolesAction</source>
		</properties>
	</destination>

</service>

 

 

取出数据相关代码:

 

List<Authority> l = q.list();

        List l2 = null;
        if (l.size()!=0) {

            l2 = new ArrayList();
            for(int i=0;i<l.size();i++){
                HashMap hm = new HashMap();
                hm.put("rid",""+((Authority)l.get(i)).getRid());
                hm.put("rname",""+((Authority)l.get(i)).getRname());
                l2.add(hm);
            }
        }
return l2;