RocketMQ–生产者自定义消息发送规则
MessageQueueSelector
SendResult sr
= producer
.send(message
, new MessageQueueSelector() {
@Override
public MessageQueue
select(List
<MessageQueue> mqs
, Message msg
, Object arg
) {
Integer queueNumber
= (Integer
)arg
;
return mqs
.get(queueNumber
);
}
}, 2);
System
.err
.println(sr
);
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