An error occurred during JDBC connection

When using JDBC to connect to MySQL: The server time zone value '? й??????? ' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the Servertimezone configuration

Add a . SERVERTIMEZONE=UTC after the connection string

Where UTC is the uniform standard world time.

Example of a complete connection string:jdbc:mysql://localhost:3306/test? SERVERTIMEZONE=UTC

Or there's another option:jdbc:mysql://127.0.0.1:3306/test? useunicode=true&characterencoding=utf-8 , this is to solve the Chinese garbled input problem, of course, can also be combined with the above:jdbc:mysql://127.0.0.1:3306/test?useunicode=true& characterencoding=utf-8&servertimezone=utc

An error occurred during JDBC connection