使用dbcp : BasicDataSource

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-dbcp2</artifactId>
            <version>2.1</version>
        </dependency>
        <!-- oracle jdbc 驱动 -->
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.3.0</version>
        </dependency>

public static DataSource setupDataSource() {
        BasicDataSource ds = new BasicDataSource();
        ds.setDriverClassName("oracle.jdbc.OracleDriver");
        ds.setUrl("jdbc:oracle:thin:@//172.16.50.67:1521/orcl");
        ds.setUsername("e_channel");
        ds.setPassword("e_channel_test");
        return ds;
    }