rocketmq消费队列代码

        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer(Constant.operationLogGroup);
        try {
            consumer.setNamesrvAddr(Constant.rocketQueneAddr);
            consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
            consumer.setMessageModel(MessageModel.BROADCASTING);
            consumer.subscribe(Constant.operationLogTopic, Constant.operationLogTag);
        } catch (MQClientException e) {
            logger.error("consume operation log MQ error", e);
        }
        cometutil = Comet4jUtil.getInstance(CHANNEL);
        consumer.registerMessageListener(new MessageListenerConcurrently() {
            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
                byte[] bytes = msgs.get(0).getBody();
                try {
                    cometutil.sendMesToAllConnsWithString(CHANNEL, new String(bytes, "UTF-8"));
                } catch (UnsupportedEncodingException e) {
                }
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }
        });
        try {
            consumer.start();
            logger.info("operationLogController's MQ consumer started.");
        } catch (MQClientException e) {
            logger.error("consume operation log MQ start error", e);
        }