String brokerName = commandLine.getOptionValue('b').trim();
List<String> namesrvList = defaultMQAdminExt.getNameServerAddressList();
if (namesrvList != null) {
for (String namesrvAddr : namesrvList) {
try {
int wipeTopicCount = defaultMQAdminExt.wipeWritePermOfBroker(namesrvAddr, brokerName);
System.out.printf("wipe write perm of broker[%s] in name server[%s] OK, %d\n",//
brokerName,//
namesrvAddr,//
wipeTopicCount//
);