sh_Spring整合Hibernate

    分别介绍了Sping和Hibernate,下面是将它们整合到一块去了。

    一、Hibernate内容

    1.创建PO类。

    

package cn.tgb.domain;//User实体public class User {private Integer id;private String username;private String password;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

    2.编写User.hbm.xml    

    

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC     "-//Hibernate/Hibernate Mapping DTD 3.0//EN"    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">   <hibernate-mapping><class name="cn.tgb.domain.User" table="t_user"><id name="id"><generator class="native"></generator></id><property name="username"></property><property name="password"></property></class></hibernate-mapping>

    3.编写Hibernate.cfg.xml 

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory><!-- #1核心四项 --><property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property><property name="hibernate.connection.url">jdbc:sqlserver://localhost:1433; DatabaseName=hibernate02</property><property name="hibernate.connection.username">sa</property><property name="hibernate.connection.password">123456</property><!-- #2设置方言 --><property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property><!-- #3 sql --><!-- * 输出sql--><property name="hibernate.show_sql">true</property><!-- * 格式化sql --><property name="hibernate.format_sql">true</property><!-- * 是否创建表 --><property name="hibernate.hbm2ddl.auto">update</property><!-- #4整合c3p0 --><property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property><!-- #5 web项目6.0 取消bean校验 --><property name="javax.persistence.validation.mode">none</property><!-- #6添加映射文件 --><mapping resource="cn/tgb/domain/User.hbm.xml"/></session-factory></hibernate-configuration> 

    二、Spring内容

    1.Dao实现类：使用HibernateTemplate对PO类进行操作。

    

package cn.tgb.dao.impl;import java.util.List;import org.springframework.orm.hibernate3.HibernateTemplate;import cn.tgb.dao.UserDao;import cn.tgb.domain.User;public class UserDaoImpl implements UserDao{//使用hibernateTemplate对PO类进行操作private HibernateTemplate hibernateTemplate;//提供set方法public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {this.hibernateTemplate = hibernateTemplate;}@Overridepublic void save(User user) {this.hibernateTemplate.save(user);}@Overridepublic void update(User user) {this.hibernateTemplate.update(user);}@Overridepublic void delete(User user) {this.hibernateTemplate.delete(user);}@Overridepublic User findById(Integer uid) {return this.hibernateTemplate.get(User.class, uid);}@Overridepublic List<User> findAllUser() {return this.hibernateTemplate.find("from User");}}

    2.Service实现类：直接使用dao层，通过spring tx管理事务

package cn.tgb.service.impl;import java.util.List;import cn.tgb.dao.UserDao;import cn.tgb.domain.User;import cn.tgb.service.UserService;public class UserServiceImpl implements UserService{//引入UserDaoprivate UserDao userDao;//提供set方法public void setUserDao(UserDao userDao) {this.userDao = userDao;}@Overridepublic void addUser(User user) {this.userDao.save(user);}@Overridepublic void updateUser(User user) {this.userDao.update(user);}@Overridepublic void deleteUser(User user) {this.userDao.delete(user);}@Overridepublic User findUserById(Integer uid) {return this.userDao.findById(uid);}@Overridepublic List<User> findAllUser() {return this.userDao.findAllUser();}}

    3.配置applicationContext.xml

    

<?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:context="http://www.springframework.org/schema/context"       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/context        http://www.springframework.org/schema/context/spring-context.xsd       http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop.xsd       http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx.xsd">     <!-- #1配置sessionFactory,     通过LocalSessionFactoryBean加载配置获得SessionFactory      -->            <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">     <!-- #1.1确定配置文件的位置 -->     <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>     </bean>     <!-- #2 hibernateTemplate -->       <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">     <!-- 需要使用sessionFactory获得session,操作PO对象 -->     <property name="sessionFactory" ref="sessionFactory"></property>     </bean>       <!-- #3 dao -->       <bean id="userDao" class="cn.tgb.dao.impl.UserDaoImpl">     <property name="hibernateTemplate" ref="hibernateTemplate"></property>     </bean>     <!-- #4 service -->       <bean id="userService" class="cn.tgb.service.impl.UserServiceImpl">     <property name="userDao" ref="userDao"></property>     </bean>          <!-- #5 事务管理 -->     <!-- #5.1事务管理器 -->     <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">     <!-- 必须确定sessionFactory。从而获得session，再获得事务 -->     <property name="sessionFactory" ref="sessionFactory"></property> </bean>  <!-- #5.2事务通知(增强)，对指定目标方法进行增强 --> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="add*"/> <tx:method name="update*"/> <tx:method name="delete*"/> <tx:method name="find*" read-only="true"/> </tx:attributes>  </tx:advice>  <!-- #5.3使用aop生成代理，进行增强 --> <aop:config> <!-- 确定切入点 --> <aop:pointcut expression="execution(* cn.tgb.service..*.*(..))" id="txPointCut"/> <!-- 声明切面 --> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/> </aop:config>  </beans>

    至此，Spring和Hibernate就算整合好了，下面编写一个测试类测试下。

package cn.tgb.test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import cn.tgb.domain.User;import cn.tgb.service.UserService;public class TestApp {public static void main(String[] args) {//1.创建建用户User user = new User();user.setUsername("jiangxiao");user.setPassword("123");//2.获取Sping配置文件String xmlPathString="applicationContext.xml";ApplicationContext applicationContext= new ClassPathXmlApplicationContext(xmlPathString);//3.通过Ioc获得UserServiceUserService userService = (UserService) applicationContext.getBean("userService");//4.执行添加用户操作userService.addUser(user);}}

   

    分析总结：

    

    这张思维导图大概介绍了一下配置文件的配置内容和加载过程，其中蓝色的云朵部分是Spring整合Hibernate的内容。程序运行时，通过加载配置文件，便将程序中所有的配置信息都加载了。如果有个扩展修改什么的也方便。日后会继续介绍它们两个与Struts的整合。