关于数据库连接的问题
SpringBoot的搭建
数据库连接报错
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
解决办法：
将application.yml中数据库配置段
driver-class-name: com.mysql.jdbc.Driver
改为com.mysql.cj.jdbc.Driver(多了个cj)
原因：
mysql的驱动类位置改变了
数据库时区问题
erver 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.
解决办法
在数据库连接的url链接后加上"&serverTimezone=GMT%2B8"
原因
mysql默认的是美国的时区，比我们中国快8小时，所以我们采用+8:00的格式
