使用com.alibaba里面的druid连接数据库

1、添加依赖：

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.8</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

2、在application.properties里添加相关参数：

# 数据库驱动：
spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
# 数据源名称
spring.datasource.druid.name=defaultDataSource
# 数据库连接地址
spring.datasource.druid.url=jdbc:mysql://localhost:3306/test?serverTime