玩转spring mvc(四)---在spring MVC中整合JPA

关于在Spring MVC中整合JPA是在我的上一篇关于spring mvc基本配置基础上进行的，所以大家先参考一下我的上一篇文章：http://blog.csdn.net/u012116457/article/details/43528111

接下来是需要新添加的一些文件：

jdbc.properties：

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc\:mysql\://localhost\:3306/tmos?useUnicode\=true&characterEncoding\=utf-8&autoReconnect\=true
jdbc.user=root
jdbc.password=root
jdbc.dialect=org.hibernate.dialect.MySQL5Dialect
jdbc.show_sql=false
jdbc.format_sql=true
#jdbc.dialect=org.hibernate.dialect.MySQLInnoDBDialect
jdbc.initialPoolSize=2
jdbc.maxPoolSize=200
jdbc.batch_size=20
jdbc.hbm2ddl.auto=update
jdbc.query.substitutions=true 1, false 0, yes ''Y'', no ''N''

jpaConfig.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa"
	xmlns:cache="http://www.springframework.org/schema/cache"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
			http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-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.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
            http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd">

    <context:annotation-config/>
	<context:component-scan base-package="module" />  <!-- 此处根据项目而定 -->

	<!-- 配置占位符 -->
	<bean
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="location" value="classpath:/jdbc.properties" />
	</bean>

	<!-- 数据源 -->
	<!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" abstract="false"
        lazy-init="default" autowire="default"> -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="${jdbc.driverClassName}"/>
		<property name="url" value="${jdbc.url}"/>
		<property name="username" value="${jdbc.user}"/>
		<property name="password" value="${jdbc.password}"/>
	</bean>
	<!-- 配置一个Factory -->
     <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="persistenceProvider" ref="persistenceProvider" />
        <property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
        <property name="jpaDialect" ref="jpaDialect" />

        <property name="jpaProperties">
            <props>
               <prop key="hibernate.dialect">${jdbc.dialect}</prop>
			   <prop key="hibernate.hbm2ddl.auto">${jdbc.hbm2ddl.auto}</prop>
			   <!-- 避免重复打印sql -->
			   <prop key="hibernate.show_sql">${jdbc.show_sql}</prop>
			   <prop key="hibernate.format_sql">${jdbc.format_sql}</prop>
            </props>
        </property>

        <property name="packagesToScan">
			<list>
				<value>module.app.entity</value>
				<value>module.system.entity</value>
		    </list>
		</property>
    </bean>

	<bean id="persistenceProvider"
        class="org.hibernate.ejb.HibernatePersistence" />

    <bean id="jpaVendorAdapter"
        class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
        <property name="database" value="MYSQL" />
    </bean>

    <bean id="jpaDialect"
        class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />

    <jpa:repositories base-package="module"
        entity-manager-factory-ref="entityManagerFactory"
        transaction-manager-ref="txManager" />

    <!-- <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"
        p:cache-manager-ref="ehcache">
        </bean>    

    <bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
        p:config-location="classpath:spring-ehcache.xml" />  -->      

    <bean id="txManager"
        class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory"
            ref="entityManagerFactory" />
    </bean>

	<tx:annotation-driven transaction-manager="txManager" />

</beans>

这样就完成了spring MVC中整合JPA  ，在这里大家可以下载本项目，里边包含一些测试代码以及用到的jar包：http://download.csdn.net/detail/u012116457/8426211

这个代码包里的jpaConfig.xml进行了修改，大家可以用这篇文章里贴的jpaConfig.xml的代码替换原来的。

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