java.sql.SQLException: The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone.

java.sql.SQLException: The server time zone value ‘�й���׼ʱ��’ is 
unrecognized or represents more than one time zone. You must configure either 
the server or JDBC driver (via the serverTimezone configuration property) to use 
a more specifc time zone value if you want to utilize time zone support.

SpringBoot This occurs when the connection to the database, we do not panic, just modify the code on the line.
Solution:
On the plus URL:? ServerTimezone = GMT% 2B8 & useUnicode = true & characterEncoding = utf-8