HikariPool-1 - Driver does not support get/set network timeout for connections. (com.mysql.jdbc.JDBC4Connection.getNetworkTimeout()I)
解决办法：在application.properties数据库连接中增加：
&serverTimezone=UTCRegistered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
解决办法：
打开mysql，输入set global time_zone='+8:00';
还有给我自己提个醒，报错信息千万别只看一句，如果第一句报错没给你答案，后面的报错信息继续看。