When I was developing jpa with spring boot, I found this problem:
The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone.
Among them is garbled.
The solution is to add a sentence after the url that connects to mysql.
Original url: jdbc:mysql://localhost:3306/stock
The modified one is: jdbc:mysql://localhost:3306/stock?serverTimezone=GMT
Modified, at least this problem is solved.
Use the article to record, if other students encounter similar problems, you can also use this method to solve them.