How do I add database pooling - Spring3, Hibernate, MySQL

Spring3, Hibernate, MySQL: I am working on my first project, can some one please show me how to change the following code to add database pooling? thanks

applicationContext-security-JDBC.xml

<beans:bean class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <beans:property name="driverClassName" value="${database.driver}" />
            <beans:property name="url" value="${database.url}" />
            <beans:property name="username" value="${database.user}" />
            <beans:property name="password" value="${database.password}" />
        </beans:bean>

jdbc.properties

database.driver=com.mysql.jdbc.Driver
database.url=jdbc:mysql://127.0.0.1/db_mytest
database.user=root
database.password=
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
hibernate.s开发者_StackOverflow社区how_sql=true

thanks.... again

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I suggest you to use commons-dbcp. You have to download the jar and add it to the WEB-INF/lib directory (if not already included in your application server). This is your new applicationContext.xml with some default parameters that you should change as you wish:

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
    destroy-method="close">
    <property name="driverClassName" value="${database.driver}" />
    <property name="url" value="${database.url}" />
    <property name="username" value="${database.username}" />
    <property name="password" value="${database.password}" />
    <property name="timeBetweenEvictionRunsMillis" value="300000" />
    <property name="numTestsPerEvictionRun" value="6" />
    <property name="minEvictableIdleTimeMillis" value="1800000" />
    <property name="initialSize" value="3" />
    <property name="maxActive" value="10" />
    <property name="maxIdle" value="10" />
    <property name="maxWait" value="5000" />
    <property name="poolPreparedStatements" value="true" />
    <property name="maxOpenPreparedStatements" value="100" />
</bean>

Hope this helps.

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You don't specify what you are running your application on. Many application servers have their own connection pooling implementation that you can tap into. I've used Tomcat's DBCP in the past - was quite easy to set up.