java.sql.SQLException: The server time zone value **** is unrecognized or represents

问题：
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.

solution:

spring:
  datasource:
    username: root
    password: 1234
    url: jdbc:mysql://localhost:3306/maven?characterEncoding=utf8&useSSL=false&serverTimezone = GMT
    driver-class-name: com.mysql.cj.jdbc.Driver

Pro test is effective! ! !