Connection Pooling with Spring & Hibernate
How to configure connection pooling wi开发者_如何学Cth Spring and Hibernate?
Thanks
Venu
You can use DBCP component
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="initialSize" value="10" />
<property name="maxActive" value="5" />
<property name="maxWait" value="5000" />
</bean>
<!-- Hibernate Configuration -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSource">
<property name="annotatedClasses">
<list>
<value>com.project.domain.Domain1</value>
<value>com.project.domain.Domain1</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
${hibernate.dialect}
</prop>
<prop key="hibernate.show_sql">
${hibernate.show_sql}
</prop>
<prop key="hibernate.generate_statistics">
${hibernate.show_statistics}
</prop>
</props>
</property>
</bean>
In Hibernate, you can configure CP30 Connection Pooling in Hibernate. View a tutorial here. IBM has a good tutorial on how to integrate Hibernate with Spring.
If you want to use Best among all Java Connection Pool providers try HikariCP. Configure a datasource bean using HikariCP in servlet-context as:
<beans:bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
<beans:property name="dataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlDataSource"/>
<beans:property name="maximumPoolSize" value="5" />
<beans:property name="maxLifetime" value="30000" />
<beans:property name="idleTimeout" value="30000" />
<beans:property name="dataSourceProperties">
<beans:props>
<beans:prop key="url">jdbc:mysql://localhost:3306/exampledb</beans:prop>
<beans:prop key="user">root</beans:prop>
<beans:prop key="password"></beans:prop>
<beans:prop key="prepStmtCacheSize">250</beans:prop>
<beans:prop key="prepStmtCacheSqlLimit">2048</beans:prop>
<beans:prop key="cachePrepStmts">true</beans:prop>
<beans:prop key="useServerPrepStmts">true</beans:prop>
</beans:props>
</beans:property>
</beans:bean>
Then use this datasource to create EntityManagerFactory bean.
If you're running in a web application container, use the built-in connection pooling of your container.
Otherwise, use Apache DBCP: http://commons.apache.org/dbcp/
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="url" value="<put database connection url here>" />
<property name="username" value="XXXXXX" />
<property name="password" value="XXXXXXXX" />
<property name="driverClassName" value="<database driver here>" />
</bean>
<bean id="pool" class="org.apache.commons.pool.impl.GenericObjectPool">
<property name="minEvictableIdleTimeMillis"><value>300000</value></property>
<property name="timeBetweenEvictionRunsMillis"><value>60000</value></property>
</bean>
<bean id="dsConnectionFactory" class="org.apache.commons.dbcp.DataSourceConnectionFactory">
<constructor-arg><ref bean="dataSource"/></constructor-arg>
</bean>
<bean id="poolableConnectionFactory" class="org.apache.commons.dbcp.PoolableConnectionFactory">
<constructor-arg index="0"><ref bean="dsConnectionFactory"/></constructor-arg>
<constructor-arg index="1"><ref bean="pool"/></constructor-arg>
<constructor-arg index="2"><null/></constructor-arg>
<constructor-arg index="3"><null/></constructor-arg>
<constructor-arg index="4"><value>false</value></constructor-arg>
<constructor-arg index="5"><value>true</value></constructor-arg>
</bean>
<bean id="pooledDS" class="org.apache.commons.dbcp.PoolingDataSource" depends-on="poolableConnectionFactory">
<constructor-arg><ref bean="pool"/></constructor-arg>
</bean>
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