使用注解方式进行spring和hibernate整合

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整合spring和hibernate需要五个要素，分别包括持久化的类，数据源，SessionFactory， TransactionManager和持久化操作的DAO类。

持久化类：

@Entitypublic class Spitter {private long id;private String userName, passWord, fullName;public Spitter(long id, String n, String p, String f){this.id = id;this.userName = n;this.passWord = p;this.fullName = f;}public Spitter(){}public void setId(long id){this.id = id;}@Idpublic long getId(){return id;}public String getUserName(){return this.userName;}public void setUserName(String n){this.userName = n;}public String getPassWord(){return this.passWord;}public void setPassWord(String p){this.passWord = p;}public String getFullName(){return this.fullName;}public void setFullName(String f){this.fullName = f;}}

数据源（在spring配置文件中配置）：

 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" >     <property name="driverClassName" value="com.mysql.jdbc.Driver" />     <property name="url" value="jdbc:mysql://localhost:3306/spitter" />     <property name="username" value="root" />     <property name="password" value="root" />     <property name="initialSize" value="5"/>     <property name="maxActive" value="10" /> </bean>

SessionFactory类（在spring配置文件中配置）：

 <bean id="sessionFactory"      class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">     <property name="dataSource" ref="dataSource" />     <property name="annotatedClasses">         <list>             <value>Spitter.spitterOne.Spitter</value>         </list>     </property>     <property name="hibernateProperties">         <props>             <prop key="dialect">org.hibernate.dialect.MySQLInnoDBDialect</prop>             <prop key="hibernate.show_sql">true</prop>             <prop key="hibernate.format_sql">true</prop>             <prop key="hibernate.hbm2ddl.auto">update</prop>                      </props>     </property>      </bean>

配置hibernate事务：

 <!-- 设定transactionManager -->       <bean id="txManager"          class="org.springframework.orm.hibernate3.HibernateTransactionManager">          <property name="sessionFactory" ref="sessionFactory" />       </bean>        <!--启动spring事务注解功能-->      <tx:annotation-driven transaction-manager="txManager"/>

进行持久化操作的DAO类：

@Repositorypublic class HibernateSpitterDao implements SpitterDAO {private SessionFactory sessionFactory;@Autowiredpublic HibernateSpitterDao(SessionFactory sessionFactory){this.sessionFactory = sessionFactory;}private Session currentSession(){return this.sessionFactory.getCurrentSession();}/** * 进行持久化的方法需要使用@Transactional进行事务管理 */@Transactional(readOnly = false, rollbackFor = RuntimeException.class)public void addSpitter(Spitter spitter){this.currentSession().save(spitter);}public Spitter getSpitterById(long id){return (Spitter)this.currentSession().get(Spitter.class, id);}@Transactional(readOnly = false, rollbackFor = RuntimeException.class)public void saveSpitter(Spitter spitter){this.currentSession().update(spitter);}public static void main(String [] args){Spitter ss = new Spitter(103,"zhang sfdasf454352an", "cccninini", "zhang shan fdasfsdfewe");ApplicationContext ctx = new ClassPathXmlApplicationContext("Spitter/spitterOne/spring-idol.xml");                <span style="color:#ff0000;">SpitterDAO dao = (SpitterDAO) ctx.getBean("hibernateSpitterDao");</span>dao.addSpitter(ss);}}

因为Spring只能对接口进行aop操作，所以红色代码部分只能将hibernateSpitterDao强制转换成SpitterDAO接口。

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