MySQL其他版本改为MySQL8.*

maven依赖：

<dependency>
    <groupId>mysql</groupId>
	<artifactId>mysql-connector-java</artifactId>
	<version>8.0.11</version>
</dependency>

数据库连接部分修改：

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/数据库名称?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=root

修改后重启即可！