spring+hibernate 两种整合方式配置文件的方法

之前的文章都是讲解springmvc+spring+mybatis 的整合，而很少有springmvc+spring+hibernate 因为工作的需要，最近在使用hibernate 所以下面我们来看看 spring整合hibernate的配置文件，这里只说spring+hibernate 的配置文件而不说springmvc 因为这些是不用变的。

spring整合hibernate 有两种方式 1、注解方式 2、xml方式实现

1、注解方式实现：

applicationContext.xml配置文件：

<?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:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="
     http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/tx
     http://www.springframework.org/schema/tx/spring-tx.xsd
     http://www.springframework.org/schema/aop
     http://www.springframework.org/schema/aop/spring-aop.xsd
     http://www.springframework.org/schema/context
     http://www.springframework.org/schema/context/spring-context.xsd">
  <context:component-scan base-package="com.test" />
  <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
   <property name="locations">
    <list>
      <value>classpath:jdbc.properties</value>
    </list>
   </property>
  </bean>
  <bean id="c3p0DataSource" destroy-method="close"
    class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="${driverClass}" />
    <property name="jdbcUrl" value="${url}" />
    <property name="user" value="${user}" />
    <property name="password" value="${password}" />
    <property name="initialPoolSize" value="${initialPoolSize}" />
    <property name="minPoolSize" value="${minPoolSize}" />
    <property name="maxPoolSize" value="${maxPoolSize}" />
    <property name="maxIdleTime" value="${maxIdleTime}" />
  </bean>
  <bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="c3p0DataSource" />
    <property name="packagesToScan">
      <list>
        <value>com.test.bean</value>
      </list>
    </property>
    <property name="hibernateProperties">
      <props>
        <prop key="hibernate.dialect">${dialect}</prop>
        <prop key="hibernate.show_sql">${show_sql}</prop>
        <prop key="hibernate.format_sql">${format_sql}</prop>
        <prop key="hibernate.use_sql_commants">${use_sql_comments}</prop>
        <prop key="hibernate.hbm2ddl.auto">${hbm2ddl.auto}</prop>
      </props>
    </property>
  </bean>
  <bean id="txManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
  </bean>
  <tx:advice id="txAdvice" transaction-manager="txManager">
    <tx:attributes>
      <tx:method name="get*" read-only="true" />
      <tx:method name="*" />
    </tx:attributes>
  </tx:advice>
  <aop:config>
    <aop:pointcut id="bizMethods" expression="execution(* com.test.biz.*.*(..))" />
    <aop:advisor advice-ref="txAdvice" pointcut-ref="bizMethods" />
  </aop:config>
</beans>

2.xml方式实现

applicationContext.xml配置：

<?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:aop="http://www.springframework.org/schema/aop"
 xmlns:tx="http://www.springframework.org/schema/tx"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop.xsd"> 

  <!-- 让spring 去读取指定路径下的资源文件 -->
  <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
   <property name="locations" value="classpath:jdbc.properties"/>
  </bean> 

  <!-- 配置c3p0连接池 -->
  <bean id="c3p0Source" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
   <property name="driverClass" value="${driverClass}" />
   <property name="jdbcUrl" value="${url}" />
   <property name="user" value="${user}" />
   <property name="password" value="${password}" />
   <property name="initialPoolSize" value="${initialPoolSize}" />
   <property name="minPoolSize" value="${minPoolSize}" />
   <property name="maxPoolSize" value="${maxPoolSize}" />
   <property name="maxIdleTime" value="${maxIdleTime}" />
  </bean> 

  <!-- 配置SessionFactory -->
  <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
   <property name="dataSource" ref="c3p0Source" />
   <property name="mappingResources">
     <list>
      <value>/com/cdzg/spring/bean/User.hbm.xml</value>
     </list>
   </property>
   <property name="hibernateProperties">
    <props>
        <prop key="hibernate.dialect">${dialect}</prop>
        <prop key="hibernate.hbm2ddl.auto">${hbm2ddl.auto}</prop>
        <prop key="hibernate.show_sql">${show_sql}</prop>
        <prop key="hibernate.format_sql">${format_sql}</prop>
        <prop key="hibernate.use_sql_comments">${use_sql_comments}</prop>
      </props>
   </property>
  </bean> 

  <!-- 配置事务管理器 -->
  <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
   <property name="sessionFactory" ref="sessionFactory" />
  </bean> 

  <!-- 定义事务通知 -->
  <tx:advice id="txAdvice" transaction-manager="txManager">
   <tx:attributes>
    <tx:method name="get*" read-only="true"/>
    <tx:method name="*"/>
   </tx:attributes>
  </tx:advice> 

   <!-- 定义事务切面，并应用事务通知 -->
   <aop:config>
   <aop:pointcut id="xxxBizImpl" expression="execution(* com.cdzg.spring.biz.*.*(..))"/>
   <aop:advisor pointcut-ref="xxxBizImpl" advice-ref="txAdvice"/>
   </aop:config> 

  <bean id="userDaoImpl" class="com.cdzg.spring.dao.impl.UserDaoImpl">
    <property name="sessionFactory" ref="sessionFactory" />
  </bean>
  <bean id="userBizImpl" class="com.cdzg.spring.biz.impl.UserBizImpl">
    <property name="userDao" ref="userDaoImpl" />
  </bean>
  <bean id="userAction" class="com.cdzg.spring.web.actions.UserAction">
    <property name="userBiz" ref="userBizImpl" />
  </bean>
</beans>

两种配置最大的区别就是注解方式不用在写O/R映射配置文件而xml方式实现的要配置O/R映射配置文件

注解的这种方式，直接扫描bean包就可以，剩下的对应关系由框架完成

而xml配置方式要配置O/R 映射文件并在这里指定文件，如果多的话可以使用通配符 "*"

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