configuration = new ConnectionConfiguration(config.getXmppHost(),config.getXmppPort(), config.getXmppServernanme());

//config.getXmppHost()  openfir服务器地址     config.getXmppPort() 端口号（5222）config.getXmppServernanme()名字随意。Android默认为Smack

/**
	 * 注册
	 * 
	 * @param account
	 *            注册帐号
	 * @param password
	 *            注册密码
	 */
	public int regist(String account, String password) {
		try {
			XMPPConnection connection = XMPPConnectionManager.getInstance()
					.getConnection();
			connection.connect();
			Registration reg = new Registration();
			reg.setType(IQ.Type.SET);
			reg.setTo(connection.getServiceName());
			Map<String, String> map = new HashMap<String, String>();
			map.put("username", account);
			map.put("password", password);
			reg.setAttributes(map);
			PacketFilter filter = new AndFilter(new PacketIDFilter(
					reg.getPacketID()), new PacketTypeFilter(IQ.class));
			PacketCollector collector = XMPPConnectionManager.getInstance()
					.getConnection().createPacketCollector(filter);
			connection.sendPacket(reg);
			IQ result = (IQ) collector.nextResult(SmackConfiguration
					.getDefaultPacketReplyTimeout());
			System.out.println("-----------------result--------------------"
					+ result);
			collector.cancel();// 停止请求results（是否成功的结果）
		} catch (Exception e) {
			e.printStackTrace();
			return Constant.LOGIN_ERROR;
		}
		return Constant.LOGIN_SECCESS;
	}

注意事项：