It can be any string, but needs to be unique for each (topic) connection factory. client1.

它可以是任何字符串，但要求对每个(主题)连接工厂是唯一的。

youdao

It can be any string, but needs to be unique for each (topic) connection factory. client1.

它可以是任何字符串，但要求对每个(主题)连接工厂是唯一的。

youdao