spring3-hibernate3整合
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Spring与Hibernate整合关键点:
1) Hibernate的SessionFactory对象交给Spring创建;
2) hibernate事务交给spring的声明式事务管理。
SH整合步骤:
1)引入jar包
连接池/数据库驱动包
Hibernate相关jar
Spring 核心包(5个)
Spring aop 包(4个)
spring-orm-3.2.5.RELEASE.jar 【spring对hibernate的支持】
spring-tx-3.2.5.RELEASE.jar 【事务相关】
2)配置
hibernate.cfg.xml
bean.xml
3)搭建环境、单独测试
步骤实现
1 // 数据访问层 2 public class DeptDao { 3 4 // Spring与Hibernate整合: IOC容器注入 5 private SessionFactory sessionFactory; 6 public void setSessionFactory(SessionFactory sessionFactory) { 7 this.sessionFactory = sessionFactory; 8 } 9 10 // 保存一个记录 11 // Spring与Hibernate整合:事务管理交给Spring 12 public void save(Dept dept) { 13 sessionFactory.getCurrentSession().save(dept); 14 } 15 } 16 2. DeptService 17 public class DeptService { 18 19 private DeptDao deptDao; 20 public void setDeptDao(DeptDao deptDao) { 21 this.deptDao = deptDao; 22 } 23 24 public void save(Dept dept){ 25 deptDao.save(dept); 26 } 27 } 28 29 3. App.java 测试 30 public class App { 31 32 // 容器 33 private ApplicationContext ac = new ClassPathXmlApplicationContext("bean.xml"); 34 35 @Test 36 public void testApp() throws Exception { 37 DeptService deptServie = (DeptService) ac.getBean("deptService"); 38 System.out.println(deptServie.getClass()); 39 40 deptServie.save(new Dept()); 41 } 42 } 43 4. bean.xml 配置 【Spring管理SessionFactory的3中方式】 44 <?xml version="1.0" encoding="UTF-8"?> 45 <beans xmlns="http://www.springframework.org/schema/beans" 46 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 47 xmlns:p="http://www.springframework.org/schema/p" 48 xmlns:context="http://www.springframework.org/schema/context" 49 xmlns:aop="http://www.springframework.org/schema/aop" 50 xmlns:tx="http://www.springframework.org/schema/tx" 51 xsi:schemaLocation="http://www.springframework.org/schema/beans 52 http://www.springframework.org/schema/beans/spring-beans.xsd 53 http://www.springframework.org/schema/context 54 http://www.springframework.org/schema/context/spring-context.xsd 55 http://www.springframework.org/schema/aop 56 http://www.springframework.org/schema/aop/spring-aop.xsd 57 http://www.springframework.org/schema/tx 58 http://www.springframework.org/schema/tx/spring-tx.xsd"> 59 60 <!-- dao 实例 --> 61 <bean id="deptDao" class="cn.itcast.dao.DeptDao"> 62 <property name="sessionFactory" ref="sessionFactory"></property> 63 </bean> 64 65 <!-- service 实例 --> 66 <bean id="deptService" class="cn.itcast.service.DeptService"> 67 <property name="deptDao" ref="deptDao"></property> 68 </bean> 69 70 <!-- 数据源配置 --> 71 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> 72 <property name="driverClass" value="com.mysql.jdbc.Driver"></property> 73 <property name="jdbcUrl" value="jdbc:mysql:///hib_demo"></property> 74 <property name="user" value="root"></property> 75 <property name="password" value="root"></property> 76 <property name="initialPoolSize" value="3"></property> 77 <property name="maxPoolSize" value="10"></property> 78 <property name="maxStatements" value="100"></property> 79 <property name="acquireIncrement" value="2"></property> 80 </bean> 81 82 <!-- ###########Spring与Hibernate整合 start########### --> 83 84 <!-- 方式(1)直接加载hibernate.cfg.xml文件的方式整合 85 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 86 <property name="configLocation" value="classpath:hibernate.cfg.xml"></property> 87 </bean> --> 88 89 <!-- 方式(2)连接池交给spring管理 【一部分配置写到hibernate中,一份分在spring中完成】 90 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 91 <property name="configLocation" value="classpath:hibernate.cfg.xml"></property> 92 <property name="dataSource" ref="dataSource"></property> 93 </bean> --> 94 95 <!-- 【推荐】方式(3)所有的配置全部都在Spring配置文件中完成 --> 96 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 97 <!-- 注入连接池对象 --> 98 <property name="dataSource" ref="dataSource"></property> 99 100 <!-- hibernate常用配置 --> 101 <property name="hibernateProperties"> 102 <props> 103 <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> 104 <prop key="hibernate.show_sql">true</prop> 105 <prop key="hibernate.hbm2ddl.auto">update</prop> 106 </props> 107 </property> 108 109 <!-- hibernate映射配置 110 <property name="mappingLocations"> 111 <list> 112 <value>classpath:cn/itcast/entity/*.hbm.xml</value> 113 </list> 114 </property> 115 --> 116 <property name="mappingDirectoryLocations"> 117 <list> 118 <value>classpath:cn/itcast/entity/</value> 119 </list> 120 </property> 121 </bean> 122 123 124 125 <!-- ###########Spring与Hibernate整合 end########### --> 126 127 <!-- 事务配置 --> 128 <!-- a. 配置事务管理器类 --> 129 <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 130 <property name="sessionFactory" ref="sessionFactory"></property> 131 </bean> 132 <!-- b. 配置事务增强(拦截到方法后如果管理事务?) --> 133 <tx:advice id="txAdvice" transaction-manager="txManager"> 134 <tx:attributes> 135 <tx:method name="*" read-only="false"/> 136 </tx:attributes> 137 </tx:advice> 138 <!-- c. Aop配置 --> 139 <aop:config> 140 <aop:pointcut expression="execution(* cn.itcast.service.*.*(..))" id="pt"/> 141 <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/> 142 </aop:config> 143 144 </beans>
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