Spring与Hibernate整合

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Spring与Hibernate进行整合

加入Hibernate相关jar包
加入Spring相关jar包
配置Spring-hibernate.xml文件
配置时应注意Hibernate版本（3、4、5）

<?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:p="http://www.springframework.org/schema/p"    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-4.3.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">    <!-- 开启注解扫描 -->        <context:component-scan base-package="xxxxxxxxxxx"></context:component-scan>    <!-- 数据源配置 -->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>        <property name="jdbcUrl" value="jdbc:mysql:///hibernate_demo"></property>        <!-- 配置数据库用户名、密码 -->        <property name="user" value="xxxxxx"></property>        <property name="password" value="xxxxxx"></property>        <property name="initialPoolSize" value="3"></property>        <property name="maxPoolSize" value="10"></property>        <property name="maxStatements" value="100"></property>        <property name="acquireIncrement" value="2"></property>    </bean>    <!-- ###########Spring与Hibernate整合  hibernate配置########### -->    <!-- 方式（1）直接加载hibernate.cfg.xml文件的方式整合    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>    </bean>    -->    <!-- 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】     <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>        <property name="dataSource" ref="dataSource"></property>    </bean> -->    <!-- 【推荐】方式（3）所有的配置全部都在Spring配置文件中完成(此时不需要hibernate.cfg.xml配置文件) -->    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">        <!-- 注入连接池对象 -->        <property name="dataSource" ref="dataSource"></property>        <!-- hibernate常用配置 -->        <property name="hibernateProperties">            <props>                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>                <prop key="hibernate.show_sql">true</prop>                <prop key="hibernate.hbm2ddl.auto">update</prop>            </props>        </property>        <!-- hibernate映射配置   读取配置文件        <property name="mappingLocations">            <list>                <value>classpath:cn/itcast/entity/*.hbm.xml</value>            </list>        </property>        -->         <!-- hibernate映射配置   设置配置文件目录 -->        <property name="mappingDirectoryLocations">            <list>                <value>classpath:cn/itcast/entity/</value>            </list>        </property>    </bean>    <!-- ###########Spring与Hibernate整合 事务配置########### -->    <!-- 配置Spring声明式事务 -->    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory"></property>    </bean>     <!-- 配置事务事务属性 -->     <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="get*" read-only="true"/>            <tx:method name="*"/>        </tx:attributes>    </tx:advice>    <!-- 配置事务切点，并把切点和事务属性关联起来 -->    <aop:config>        <aop:pointcut expression="execution(* com.demo.ssm.serviceImpl.*.*(..))" id="txPointcut"/>        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut"/>    </aop:config></beans>

hibernate.cfg.xml相关配置

<!--如果通过导入hibernate.cfg.xml文件来进行配置-->-----------------------------hibernate.cfg.xml----------------------------------<!DOCTYPE hibernate-configuration PUBLIC    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration>    <!-- 通常，一个session-factory节点代表一个数据库 -->    <session-factory>        <!-- 1. 数据库连接配置 -->        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>        <property name="hibernate.connection.url">jdbc:mysql:///hibernate_demo</property>        <property name="hibernate.connection.username">root</property>        <property name="hibernate.connection.password">Zh86278789</property>        <!--             数据库方法配置， hibernate在运行的时候，会根据不同的方言生成符合当前数据库语法的sql         -->        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>        <!-- 2. 其他相关配置 -->        <!-- 2.1 显示hibernate在运行时候执行的sql语句 -->        <property name="hibernate.show_sql">true</property>        <!-- 2.2 格式化sql        <property name="hibernate.format_sql">true</property>  -->        <!-- 2.3 自动建表  -->        <property name="hibernate.hbm2ddl.auto">update</property>        <!-- 配置session的创建方式：线程方式创建session对象 -->        <property name="hibernate.current_session_context_class">thread</property>        <!--****************** 【连接池配置】****************** -->        <!-- 配置连接驱动管理类 -->        <property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>        <!-- 配置连接池参数信息 -->        <property name="hibernate.c3p0.min_size">2</property>        <property name="hibernate.c3p0.max_size">4</property>        <property name="hibernate.c3p0.timeout">5000</property>        <property name="hibernate.c3p0.max_statements">10</property>        <property name="hibernate.c3p0.idle_test_period">30000</property>        <property name="hibernate.c3p0.acquire_increment">2</property>        <!--****************** 【二级缓存配置】****************** -->        <!-- a.  开启二级缓存 -->        <property name="hibernate.cache.use_second_level_cache">true</property>        <!-- b. 指定使用哪一个缓存框架(默认提供的) -->        <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>        <!-- 开启查询缓存 -->        <property name="hibernate.cache.use_query_cache">true</property>        <!-- c. 指定哪一些类，需要加入二级缓存 -->        <class-cache usage="read-write" class="cn.itcast.b_second_cache.Dept"/>        <class-cache usage="read-only" class="cn.itcast.b_second_cache.Employee"/>        <!-- 集合缓存[集合缓存的元素对象，也加加入二级缓存] -->        <collection-cache usage="read-write" collection="cn.itcast.b_second_cache.Dept.emps"/>        <!-- 3. 加载所有映射         <mapping resource="cn/itcast/a_hello/Employee.hbm.xml"/>        -->    </session-factory></hibernate-configuration>

实体类UserDao

import java.util.List;  import org.hibernate.Query;  import org.hibernate.SessionFactory;  import com.entity.User;  //利用注解标识持久层，并且将SessionFactiory自动注入@Repository  public class UserDAO implements IUserDAO  {      @AutoWired    private SessionFactory sessionFactory;      public void setSessionFactory(SessionFactory sessionFactory) {          this.sessionFactory = sessionFactory;      }      @Override      public void addUser(User user) {//添加用户          sessionFactory.getCurrentSession().save(user);      }      @Override          public List<User> getAllUser() {//查找所有用户信息          String hql = "from User";          Query query = sessionFactory.getCurrentSession().createQuery(hql);          return query.list();      }      @Override      public boolean delUser(String id) {//删除用户          String hql = "delete User u where u.id=?";          Query query = sessionFactory.getCurrentSession().createQuery(hql);          query.setString(0, id);          return (query.executeUpdate() > 0);      }      @Override      public User getUser(String id) {//根据id得到单个用户          String hql = "from User u where u.id=?";          Query query = sessionFactory.getCurrentSession().createQuery(hql);//此时使用的是hql语句          query.setString(0, id);          return (User) query.uniqueResult();      }      @Override      public boolean updateUser(User user) {//修改用户信息,hql语句          String hql = "update User u set u.userName=?,u.age=? where u.id=?";          Query query = sessionFactory.getCurrentSession().createQuery(hql);          query.setString(0, user.getUserName());          query.setString(1, user.getAge());          query.setString(2, user.getId());          return (query.executeUpdate() > 0);      }  }

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