blazeds message filter 过滤消息——在聊天室的应用

代码都是官方的，因为我在本地测试，所以得设置channelSet
   producer可以通过设置AsyncMessage的header 设置消息头
  cousumer可以通过设置selector来过滤消息（消息头中指定的消息），selector不写，说明不过滤，可以收到
写了，会跟消息头中的字段匹配，好像字符串不行如
message.headers["prop1"] = 10; //指定消息头 10不能是字符串
selector="prop1 = 10"   //可以用比较运算符 如：selector="prop1 >5"
如果不想接收某个信息，把selector设置为不匹配的如：selector="prop1 > 10"这样就接收不到消息。

这样就可以通过 过滤消息来 分组发 ，p2p ，发给所有人。（可能这样更复杂了，希望高人提出更简单的办法）

  producer_filter.mxml

<?xml version="1.0" encoding="utf-8"?>   
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()">   
<mx:Script>   
<![CDATA[   
    import mx.messaging.channels.AMFChannel;   
import mx.messaging.*;   
import mx.messaging.messages.*;   
import mx.messaging.events.*;   
private function sendMessage():void {   
init();   
  
var message:AsyncMessage = new AsyncMessage();   
message.headers = new Array();   
message.headers["prop1"] = 10; //指定消息头   
message.body = input.text;   
producer.send(message);   
}   
//设置channelSet   
private function init(){   
       
                var url="http://localhost:8400/BlazedsMessage/"; //随便的以个blazeds应用   
//              var myStreamingAMF:StreamingAMFChannel = new StreamingAMFChannel(url+"my-streaming-amf", url+"messagebroker/streamingamf");   
                var myPollingAMF:AMFChannel = new AMFChannel(url+"my-polling-amf", url+"messagebroker/amfpolling");   
                myPollingAMF.pollingEnabled = true;//轮询   
                myPollingAMF.pollingInterval = 1000;//隔多长时间询问一次 1miao   
                var channelSet:ChannelSet = new ChannelSet();   
//              channelSet.addChannel(myStreamingAMF);   
                channelSet.addChannel(myPollingAMF);   
                               
                producer.channelSet = channelSet;   
               
}   
]]>   
</mx:Script>   
<mx:Producer id="producer"  
destination="mychat">   
  
</mx:Producer>     
<mx:TextInput id="userName"/>   
<mx:TextInput id="input"/>   
<mx:Button label="Send"  
click="sendMessage();"/>   
</mx:Application>  

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()">
<mx:Script>
   <![CDATA[
		import mx.messaging.channels.AMFChannel;
		import mx.messaging.*;
		import mx.messaging.messages.*;
		import mx.messaging.events.*;
		private function sendMessage():void {
			init();var message:AsyncMessage = new AsyncMessage();
			message.headers = new Array();
			message.headers["prop1"] = 10; //指定消息头message.body = input.text;producer.send(message);}
			//设置channelSetprivate 
			function init(){var url="http://localhost:8400/BlazedsMessage/"; 
			//随便的以个blazeds应用
			var myStreamingAMF:StreamingAMFChannel = new StreamingAMFChannel(url+"my-streaming-amf", url+"messagebroker/streamingamf");
			var myPollingAMF:AMFChannel = new AMFChannel(url+"my-polling-amf", url+"messagebroker/amfpolling");
			myPollingAMF.pollingEnabled = true;//轮询
			myPollingAMF.pollingInterval = 1000;//隔多长时间询问一次 1miaovar 
			channelSet:ChannelSet = new ChannelSet();
			channelSet.addChannel(myStreamingAMF);
			channelSet.addChannel(myPollingAMF);
			producer.channelSet = channelSet;}
	]]>
</mx:Script>
<mx:Producer id="producer"destination="mychat">
</mx:Producer>  <mx:TextInput id="userName"/>
<mx:TextInput id="input"/>
<mx:Button label="Send"click="sendMessage();"/>
</mx:Application> 

Flex_consumer代码

<?xml version="1.0" encoding="utf-8"?>   
<!-- ds\messaging\CreateConsumerMXML.mxml -->   
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"  
creationComplete="logon();">   
<mx:Script>   
<![CDATA[   
    import mx.messaging.channels.AMFChannel;   
import mx.messaging.*;   
import mx.messaging.messages.*;   
import mx.messaging.events.*;   
// Subscribe to destination.   
private function logon():void {   
    init();   
consumer.subscribe();//订阅   
}   
// Write received message to TextArea control.   
//收到信息   
private function messageHandler(event:MessageEvent):void {   
// Handle message event.   
ta.text += event.message.body + "\n";   
}   
  
private function init(){   
       
                var url="http://localhost:8400/BlazedsMessage/";   
//              var myStreamingAMF:StreamingAMFChannel = new StreamingAMFChannel(url+"my-streaming-amf", url+"messagebroker/streamingamf");   
                var myPollingAMF:AMFChannel = new AMFChannel(url+"my-polling-amf", url+"messagebroker/amfpolling");   
                myPollingAMF.pollingEnabled = true;   
                myPollingAMF.pollingInterval = 1000;   
                var channelSet:ChannelSet = new ChannelSet();   
//              channelSet.addChannel(myStreamingAMF);   
                channelSet.addChannel(myPollingAMF);   
                               
                consumer.channelSet = channelSet;   
               
}   
  
]]>   
</mx:Script>   
<mx:Consumer id="consumer"  
destination="mychat"  
selector="prop1 = 10"     
message="messageHandler(event);">   
  
<!--上边的selector可以改成 selector="prop1 > 9" 也能受到信息，说明可以用比较 官方文档也很少。郁闷-->   
       
</mx:Consumer>   
  
  
<mx:TextArea id="ta" width="100%" height="100%"/>   
</mx:Application>  
<?xml version="1.0" encoding="utf-8"?>
<!-- ds\messaging\CreateConsumerMXML.mxml --><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"creationComplete="logon();">
<mx:Script>
	<![CDATA[
		import mx.messaging.channels.AMFChannel;
		import mx.messaging.*;
		import mx.messaging.messages.*;
		import mx.messaging.events.*;// Subscribe to destination.
		private function logon():void {init();consumer.subscribe();//订阅
		}
		// Write received message to TextArea control.
		//收到信息
		private function messageHandler(event:MessageEvent):void {
			// Handle message 
			event.ta.text += event.message.body + "\n";
		}
		private function init(){var url="http://localhost:8400/BlazedsMessage/";//var myStreamingAMF:StreamingAMFChannel = new StreamingAMFChannel(url+"my-streaming-amf", url+"messagebroker/streamingamf");
		var myPollingAMF:AMFChannel = new AMFChannel(url+"my-polling-amf", url+"messagebroker/amfpolling");
		myPollingAMF.pollingEnabled = true;
		myPollingAMF.pollingInterval = 1000;
		var channelSet:ChannelSet = new ChannelSet();
		//channelSet.addChannel(myStreamingAMF);
		channelSet.addChannel(myPollingAMF);
		consumer.channelSet = channelSet;}
		]]>
		</mx:Script>
	<mx:Consumer id="consumer"destination="mychat"selector="prop1 = 10"  message="messageHandler(event);">
	<!--上边的selector可以改成 selector="prop1 > 9" 也能受到信息，说明可以用比较 官方文档也很少。郁闷-->
	</mx:Consumer><mx:TextArea id="ta" width="100%" height="100%"/>
</mx:Application> 

服务器端 message-config.xml

<?xml version="1.0" encoding="UTF-8"?>   
<service id="message-service"    
    class="flex.messaging.services.MessageService">   
  
    <adapters>   
        <adapter-definition id="actionscript" class="flex.messaging.services.messaging.adapters.ActionScriptAdapter" default="true" />   
        <!-- <adapter-definition id="jms" class="flex.messaging.services.messaging.adapters.JMSAdapter"/> -->   
    </adapters>   
  
    <default-channels>   
        <channel ref="my-polling-amf"/>   
    </default-channels>   
    <destination id="mychat">   
           
    </destination>   
</service>  

<?xml version="1.0" encoding="UTF-8"?>
<service id="message-service"     class="flex.messaging.services.MessageService"> 
<adapters>      
<adapter-definition id="actionscript" class="flex.messaging.services.messaging.adapters.ActionScriptAdapter" default="true" />    
<!-- <adapter-definition id="jms" class="flex.messaging.services.messaging.adapters.JMSAdapter"/> --> 
</adapters>    <default-channels>  
<channel ref="my-polling-amf"/> 
</default-channels><destination id="mychat">
</destination></service>