defaultMQAdminExt.start();
// 查询特定consumer
if (commandLine.hasOption('g')) {
String consumerGroup = commandLine.getOptionValue('g').trim();
ConsumeStats consumeStats = defaultMQAdminExt.examineConsumeStats(consumerGroup);
List<MessageQueue> mqList = new LinkedList<MessageQueue>();
mqList.addAll(consumeStats.getOffsetTable().keySet());
Collections.sort(mqList);