As shown in the title, when we use springboot version higher than 2.1.4.RELEASE, the database driver becomes com.mysql.cj.jdbc.Driver by default instead of the original com.mysql.jdbc.Driver, which is also directly As a result, an error message will occur after connecting to the database:
The server time zone value 'Öйú±ê׼ʱ¼ä' 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.
The solution is to set a serverTimezone parameter for the database connection url. The value can be GMT-8 or Asia / Shanghai, because GMT-8 needs to escape the hyphen "-", so the configuration property is serverTimezone = GMT% 2B8 , If it is Asia / Shanghai, there is no need to do conversion.
