RongtongJin commented on issue #118: consumer.subscribe is not valid URL: https://github.com/apache/rocketmq-spring/issues/118#issuecomment-521609443 You can set filter expression by setting selectorExpression like this： ```@RocketMQMessageListener (topic = “xxx”, selectorExpression = “yyy”, consumerGroup = “zzz”)``` It is not recommended to invoke subscribe again in the prepareStart method. If you subscribe the same topic in this method, the original filter expression will be overwritten.
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