smack 小例子

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import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ChatManager;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;

/**
* Chat prototype using smack as client library. Server side are supported by
* openfire.
*
* @author promise
* @date 2009-3-30
*
*/
public class FireChat {
    public static XMPPConnection con;
    public static Chat newChat;
    public static ChatManager chatmanager;

    public static void main(String[] args) throws InterruptedException {
        // XMPPConnection.DEBUG_ENABLED = true;
        try {
            // Create a connection to server
            ConnectionConfiguration config = new ConnectionConfiguration(
                    "localhost", 5222);
            con = new XMPPConnection(config);

            // connect and login with the username and pwd on server
            con.connect();
            con.login("admin", "123");
            System.out.println("Authenticated = " + con.isAuthenticated());

            // add a listener to receive all messages
            addListener();

            chatmanager = con.getChatManager();
            newChat = chatmanager.createChat("zkp@10.25.101.159/spark",
                    new MessageListener() {
                        public void processMessage(Chat chat, Message message) {
                            System.out.println("I'm sending: "
                                    + message.getBody());
                        }
                    });
            newChat.sendMessage("hi");
        } catch (XMPPException e) {
            e.printStackTrace();
        } finally {
        //让线程休眠然后再关闭连接
            Thread.sleep(3600000);
            con.disconnect();
        }
    }

    private static void addListener() {
        // just need Messages
        PacketFilter filterMessage = new PacketTypeFilter(Message.class);

        PacketListener myListener = new PacketListener() {
            public void processPacket(Packet packet) {
                System.out.println("From: " + packet.getFrom() + "\n");
                System.out.println("Body: " + ((Message) packet).getBody());
                // when receiving prc's Message, just say something else again
                // and again, robot
                try {
                    newChat.sendMessage("hi again");
                } catch (XMPPException e) {
                    e.printStackTrace();
                }
            }
        };
        // register the listener to the connection
        con.addPacketListener(myListener, filterMessage);
    }
}

要提到的是，运行此程序必须先配置好openfire的服务器，然后把用户名等写对!