POM依赖

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

配置文件

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

spring.datasource.url=jdbc:mysql://localhost:3306/learn_user?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC

spring.datasource.username=root

spring.datasource.password=root

Mysql 8 以下的:

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.url=jdbc:mysql://localhost:3306/learn_user?useSSL=false&useUnicode=true&characterEncoding=UTF-8

spring.datasource.username=root

spring.datasource.password=root

注意

如果项目在maven的依赖xml文件里配置有关数据源的变量, &字符需要写成转义的形式:&.