DBCP数据库连接池的两种实现方式

https://www.bilibili.com/video/BV1eJ411c7rf?p=49

pom.xml 引入依赖

        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>commons-pool</groupId>
            <artifactId>commons-pool</artifactId>
            <version>1.5.5</version>
        </dependency>