If this asynchronous operation is non-transaction related to the previous logic. That is to say, they are not in the same transaction. Then you can use a new link.
If there is a transaction, this old link must be used. This connection object can only be passed to the thread.
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The connection must be released after each use. The next time you connect, just go to threadlocal to get the value. I don’t understand what you mean.
When creating a new Thread, take the connection out of ThreadLocal and pass it in
Isn’t there a way to get the connection?
Just write the execution part independently, so you don’t need to pass the dao to Thread
If this asynchronous operation is non-transaction related to the previous logic. That is to say, they are not in the same transaction.
Then you can use a new link.
If there is a transaction, this old link must be used. This connection object can only be passed to the thread.