<?xml version="1.0" encoding="UTF-8"?>
<beans:bean
...
    <beans:bean id="dataSource"
                class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <beans:property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/> ➊
        <beans:property name="url" value="jdbc:mysql://localhost/SPRING"/> ➋

➌

        <beans:property name="username" value="root"/>
        <beans:property name="password" value="1234"/>

    </beans:bean>
...
</beans:bean>