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;