錯誤提示：
Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is 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.
解決方法：
在連接字符串后面加上?serverTimezone=UTC
其中UTC是統一標准世界時間。
完整的連接字符串示例：jdbc:mysql://localhost:3306/test?serverTimezone=UTC
或者還有另一種選擇：jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8，這個是解決中文亂碼輸入問題，當然也可以和上面的一起結合：jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC