JADE:远程机器的Agent通信应注意的问题

import jade.core.AID;
import jade.domain.AMSService;
import jade.domain.FIPAAgentManagement.*;
public class Sender2 extends Agent {
    protected void setup() 
    {
        
        AMSAgentDescription [] agents = null;
        AID Rams= new AID("ams@gjpc:1099/JADE");//获取gjpc机器上的ams
        Rams.addAddresses("http://gjpc:7778/acc");
          try {
            SearchConstraints c = new SearchConstraints();
            c.setMaxResults (new Long(-1));
            //agents = AMSService.search( this, new AMSAgentDescription (), c );
            //下面查找rams里面的agents
            agents = AMSService.search( this, Rams, new AMSAgentDescription (), c );
        }
        catch (Exception e) {
            System.out.println( "Problem searching AMS: " + e );
            e.printStackTrace();
        }
        
        
        ACLMessage msg = new ACLMessage(ACLMessage.INFORM);
        msg.setContent( "this is from guojie 's Ping" );//本地机器名为guojie
        //逐个向他们发送消息
        for (int i=0; i<agents.length;i++){
            if ( agents[i].getName().equals(getAID()) ){
                continue;
            }
            System.out.println(agents[i].getName().toString());
            agents[i].getName().addAddresses("http://gjpc:7778/acc");
            //这一句必须要有
            msg.addReceiver( agents[i].getName() );
        
        }
        
        System.out.println("wait fro a minute...");
        
    
        
        send(msg);
    }

}