springcloud项目在登录时报错详细错误信息如下2022-06-10 21:55:12.378 WARN 18248 --- [nio-9999-exec-1] o.s.s.o.provider.endpoint.TokenEndpoint : Handling error: InternalAuthenticationServiceException, Failed to obtain 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.解决方法url: jdbc:mysql://mysql-server:3306/coin-exchange?useUnicodetruecharacterEncodingutf-8useSSLfalseserverTimezoneUTC或者..........serverTimezoneAsia/Shanghai也是可以的。