spring中使用查询缓存

企业开发 2018-05-11 17:46:37 阅读次数: 1

由于使用的是spring3所以一下配置都基于spring3.

 

先来看spring没有默认设置查询缓存的设置,spring的xml如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
 http://www.springframework.org/schema/aop 
 http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
 http://www.springframework.org/schema/tx 
 http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
 http://www.directwebremoting.org/schema/spring-dwr
 http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd
 http://www.springframework.org/schema/context 
 http://www.springframework.org/schema/context/spring-context-3.0.xsd" default-autowire="byName">
 
 	<context:property-placeholder location="classpath*:database.properties,classpath*:memcached.properties" />
 	
 	<!-- spring注释自动注入 -->
 	<context:annotation-config/>
 	
	<context:component-scan base-package="com.myweb" />
	
	<!--jbpm4.4工作流  -->
	<bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper"/>
	<bean id="processEngine" factory-bean="springHelper"  factory-method="createProcessEngine" />
	
	<!-- dataSourceproxy 配置代理管理事务 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy"
		p:targetDataSource-ref="dynamicDataSource" />
	
	<!-- dataSource 多数据源支持 -->
	<bean id="dynamicDataSource" class="com.myweb.support.DynamicDataSource">
		<property name="targetDataSources">
			<map key-type="java.lang.String">
				<entry key="dataSource" value-ref="dataSourceJDBC" />
			</map>
		</property>
	</bean>
	
	<!-- c3p0数据源配置 -->
	<bean id="dataSourceJDBC" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close" p:driverClass="${jdbc.driverClass}" p:jdbcUrl="${jdbc.jdbcUrl}"
		p:user="${jdbc.user}" p:password="${jdbc.password}" p:initialPoolSize="${c3p0.initialPoolSize}"
		p:minPoolSize="${c3p0.minPoolSize}" p:maxPoolSize="${c3p0.maxPoolSize}"
		p:acquireIncrement="${c3p0.acquireIncrement}" p:maxIdleTime="${c3p0.maxIdleTime}"
		p:maxStatements="${c3p0.maxStatements}" lazy-init="true" />
	

	<!-- hibernate-spring 基本配置 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="hibernateProperties">
			<props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
				<prop key="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</prop>
				<prop key="hibernate.jdbc.fetch_size">50</prop>
				<prop key="hibernate.jdbc.batch_size">25</prop>
				<prop key="hibernate.cache.use_query_cache">true</prop>
				<prop key="hibernate.cache.use_second_level_cache">true</prop>
				<prop key="hibernate.max_fetch_depth">1</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.cache.provider_class">com.googlecode.hibernate.memcached.MemcachedCacheProvider</prop>
				<prop key="hibernate.memcached.servers">${memcached.object.servers}</prop>
				<prop key="hibernate.memcached.cacheTimeSeconds">86400</prop>
				<prop key="hibernate.memcached.clearSupported">false</prop>
				<prop key="hibernate.connection.release_mode">after_transaction</prop>
            </props>
		</property>
		<property name="mappingLocations">
			<list>
				<value>classpath*:com/<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">/modal/hibernate/*.hbm.xml</value></span>
				<value>classpath*:jbpm.repository.hbm.xml</value>
				<value>classpath*:jbpm.execution.hbm.xml</value>
				<value>classpath*:jbpm.history.hbm.xml</value>
				<value>classpath*:jbpm.task.hbm.xml</value>
				<value>classpath*:jbpm.identity.hbm.xml</value>
			</list>
		</property>
		<!-- 使用TransactionAwareDataSourceProxy管理事务与ibatis处于同一事务管理下 -->
		<property name="useTransactionAwareDataSource" value="true"></property>
	</bean>
	
	
	<!-- mybatis-spring 配置 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:mybatis-config.xml" />
		<property name="mapperLocations" value="classpath*:com/<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">/ibatis/mapper/*.xml"/></span>
	</bean>
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.dao.ibatis" /></span>
	</bean>

		<!-- spring transaction 事务管理 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>


	<tx:advice id="txManager" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
			<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED"/>
		</tx:attributes>
	</tx:advice>
	
	<aop:config>
		<aop:advisor id="txAdvisor" advice-ref="txManager" pointcut="execution(* com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.*service..*(..))" order="0" /></span>
	</aop:config>
	
	
	<!-- memcache-java -->
	<bean id="objectCache" class="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.service.ObjectCache"></span>
		<property name="memCachedClient">
			<props>
				<prop key="memcached.servers">${memcached.object.servers}</prop>
				<prop key="memcached.weights">${memcached.object.weights}</prop>
				<prop key="memcached.failover">${memcached.failover}</prop>
				<prop key="memcached.initConn">${memcached.initConn}</prop>
				<prop key="memcached.minConn">${memcached.minConn}</prop>
				<prop key="memcached.maxConn">${memcached.maxConn}</prop>
				<prop key="memcached.maintSleep">${memcached.maintSleep}</prop>
				<prop key="memcached.nagle">${memcached.nagle}</prop>
				<prop key="memcached.socketTO">${memcached.socketTO}</prop>
				<prop key="memcached.aliveCheck">${memcached.aliveCheck}</prop>
			</props>
		</property>
	</bean>
</beans>

 主要的BaseHDao配置如下:

package com.myweb.dao.hibernate;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

/**
 * @author jsczxy2
 *
 */
@Repository
public class BaseHDao extends HibernateDaoSupport {
	
	Log log = LogFactory.getLog(getClass());
	
	@Autowired
	private SessionFactory sessionFactory;

}

 再来看spring默认设置查询缓存，其实差异就在hibernateTemplate和hibernateTemplate里的cacheQueries设置为true!

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
 http://www.springframework.org/schema/aop 
 http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
 http://www.springframework.org/schema/tx 
 http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
 http://www.directwebremoting.org/schema/spring-dwr
 http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd
 http://www.springframework.org/schema/context 
 http://www.springframework.org/schema/context/spring-context-3.0.xsd" default-autowire="byName">
 
 	<context:property-placeholder location="classpath*:database.properties,classpath*:memcached.properties" />
 	
 	<!-- spring注释自动注入 -->
 	<context:annotation-config/>
 	
	<context:component-scan base-package="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">" /></span>
	
	<!--jbpm4.4工作流  -->
	<bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper"/>
	<bean id="processEngine" factory-bean="springHelper"  factory-method="createProcessEngine" />
	
	<!-- dataSourceproxy 配置代理管理事务 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy"
		p:targetDataSource-ref="dynamicDataSource" />
	
	<!-- dataSource 多数据源支持 -->
	<bean id="dynamicDataSource" class="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.support.DynamicDataSource"></span>
		<property name="targetDataSources">
			<map key-type="java.lang.String">
				<entry key="dataSource" value-ref="dataSourceJDBC" />
			</map>
		</property>
	</bean>
	
	<!-- c3p0数据源配置 -->
	<bean id="dataSourceJDBC" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close" p:driverClass="${jdbc.driverClass}" p:jdbcUrl="${jdbc.jdbcUrl}"
		p:user="${jdbc.user}" p:password="${jdbc.password}" p:initialPoolSize="${c3p0.initialPoolSize}"
		p:minPoolSize="${c3p0.minPoolSize}" p:maxPoolSize="${c3p0.maxPoolSize}"
		p:acquireIncrement="${c3p0.acquireIncrement}" p:maxIdleTime="${c3p0.maxIdleTime}"
		p:maxStatements="${c3p0.maxStatements}" lazy-init="true" />
	

	<!-- hibernate-spring 基本配置 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="hibernateProperties">
			<props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
				<prop key="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</prop>
				<prop key="hibernate.jdbc.fetch_size">50</prop>
				<prop key="hibernate.jdbc.batch_size">25</prop>
				<prop key="hibernate.cache.use_query_cache">true</prop>
				<prop key="hibernate.cache.use_second_level_cache">true</prop>
				<prop key="hibernate.max_fetch_depth">1</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.cache.provider_class">com.googlecode.hibernate.memcached.MemcachedCacheProvider</prop>
				<prop key="hibernate.memcached.servers">${memcached.object.servers}</prop>
				<prop key="hibernate.memcached.cacheTimeSeconds">86400</prop>
				<prop key="hibernate.memcached.clearSupported">false</prop>
				<prop key="hibernate.connection.release_mode">after_transaction</prop>
            </props>
		</property>
		<property name="mappingLocations">
			<list>
				<value>classpath*:com/<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">/modal/hibernate/*.hbm.xml</value></span>
				<value>classpath*:jbpm.repository.hbm.xml</value>
				<value>classpath*:jbpm.execution.hbm.xml</value>
				<value>classpath*:jbpm.history.hbm.xml</value>
				<value>classpath*:jbpm.task.hbm.xml</value>
				<value>classpath*:jbpm.identity.hbm.xml</value>
			</list>
		</property>
		<!-- 使用TransactionAwareDataSourceProxy管理事务与ibatis处于同一事务管理下 -->
		<property name="useTransactionAwareDataSource" value="true"></property>
	</bean>
	
	<!-- hibernateTemplate 并使用查询缓存设置-->
	<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
       <property name="sessionFactory"><ref bean="sessionFactory"/></property>
       <property name="cacheQueries" value="true"></property>
	</bean>
	
	<!-- mybatis-spring 配置 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:mybatis-config.xml" />
		<property name="mapperLocations" value="classpath*:com/<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">/ibatis/mapper/*.xml"/></span>
	</bean>
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.dao.ibatis" /></span>
	</bean>

		<!-- spring transaction 事务管理 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>


	<tx:advice id="txManager" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
			<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED"/>
		</tx:attributes>
	</tx:advice>
	
	<aop:config>
		<aop:advisor id="txAdvisor" advice-ref="txManager" pointcut="execution(* com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.*service..*(..))" order="0" /></span>
	</aop:config>
	
	
	<!-- memcache-java -->
	<bean id="objectCache" class="com.<span style="font-size: 1em; line-height: 1.5;">myweb</span><span style="font-size: 1em; line-height: 1.5;">.service.ObjectCache"></span>
		<property name="memCachedClient">
			<props>
				<prop key="memcached.servers">${memcached.object.servers}</prop>
				<prop key="memcached.weights">${memcached.object.weights}</prop>
				<prop key="memcached.failover">${memcached.failover}</prop>
				<prop key="memcached.initConn">${memcached.initConn}</prop>
				<prop key="memcached.minConn">${memcached.minConn}</prop>
				<prop key="memcached.maxConn">${memcached.maxConn}</prop>
				<prop key="memcached.maintSleep">${memcached.maintSleep}</prop>
				<prop key="memcached.nagle">${memcached.nagle}</prop>
				<prop key="memcached.socketTO">${memcached.socketTO}</prop>
				<prop key="memcached.aliveCheck">${memcached.aliveCheck}</prop>
			</props>
		</property>
	</bean>
</beans>

 

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

/**
 * @author jsczxy2
 *
 */
@Repository
public class BaseHDao extends HibernateDaoSupport {
	
	Log log = LogFactory.getLog(getClass());
	
	@Autowired
	private HibernateTemplate hibernateTemplate;

}

 这样可以看出使用spring的HibernateTemplate 来设置cacheQueries为true就是设置spring默认打开查询缓存。查询缓存会缓存查询语句的结果，其生命周期是到相关映射实体对象有变动为止，一旦有变动则会重新查询后缓存。

 

 

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