MySql用的是8.0.22,在spring配置文件中,为什么driverClassName可有可无?
<context:property-placeholder location="classpath:conf/jdbc.properties"/>
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<!-- <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>-->
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>