Spring管理c3p0连接池

【第一步】添加c3p0连接池依赖

<dependency>
    <groupId>c3p0</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.1.2</version>
</dependency>

【第二步】配置c3p0连接池Bean对象

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="com.MysqL.jdbc.Driver"/>
    <property name="jdbcUrl" value="jdbc:MysqL://localhost:3306/spring_db"/>
    <property name="user" value="root"/>
    <property name="password" value="root"/>
    <property name="maxPoolSize" value="1000"/>
</bean>

【第三步】在测试类中从IOC容器中获取连接池对象并打印

public class App {
    public static void main(String[] args) {
        ApplicationContext ctx = new ClasspathXmlApplicationContext("applicationContext.xml");
        DataSource dataSource = (DataSource) ctx.getBean("dataSource");
        System.out.println(dataSource);
    }
}