spring和hibernate整合，事务管理

一、spring和hibernate整合开发步骤

1 引入jar文件，用户libarary列表如下

//spring_core
spring3..9core\commons-logging-1.2.jar
spring3..9core\spring-beans-3.2..RELEASE.jar
spring3..9core\spring-context-3.2..RELEASE.jar
spring3..9core\spring-core-3.2..RELEASE.jar
spring3..9core\spring-expression-3.2..RELEASE.jar

//hibernate core
hibernate3.6core\antlr-2.7..jar
hibernate3.6core\commons-collections-3.1.jar
hibernate3.6core\dom4j-1.6..jar
hibernate3.6core\hibernate3.jar
hibernate3.6core\hibernate-jpa-2.0-api-1.0..Final.jar
hibernate3.6core\javassist-3.12..GA.jar
hibernate3.6core\jta-1.1.jar
hibernate3.6core\slf4j-api-1.6..jar
hibernate3.6core\slf4j-nop-1.7..jar

//DB_connector
DB-connector\c3p0-0.9.1.2.jar
DB-connector\mysql-connector-java-5.1.-bin.jar
DB-connector\spring-jdbc-3.2..RELEASE.jar

//AOP
springAOP\aopalliance.jar
springAOP\aspectjrt.jar
springAOP\aspectjweaver.jar
springAOP\spring-aop-3.2..RELEASE.jar

//spring_ORM
spring-ORM\spring-orm-3.2..RELEASE.jar
spring-ORM\spring-tx-3.2..RELEASE.jar

2 Entity/Dao/Service类代码如下

//entity/Employee.java
public class Employee {
    private int id;
    private String ename;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getEname() {
        return ename;
    }
    public void setEname(String ename) {
        this.ename = ename;
    }
}

//dao/EmployeeDao.java
public class EmployeeDao {
    private SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    public void saveEmp(Employee emp){
        sessionFactory.getCurrentSession().save(emp);
    }

}

//service/EmployeeService.java
public class EmployeeService {
    private EmployeeDao employeeDao;

    public void setEmployeeDao(EmployeeDao employeeDao) {
        this.employeeDao = employeeDao;
    }

    public void saveEmp(Employee emp){
        employeeDao.saveEmp(emp);
    }

}

3 类对象和数据表关系映射配置，Employee.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping
    package="com.huitong.entity">

    <class name="Employee" table="employee">
        <id name="id" column="id">
            <generator class="native"></generator>
        </id>

        <property name="ename" column="ename"></property>
    </class>

</hibernate-mapping>

4 Spring和hibernate/事务配置都放在一个配置文件中bean.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: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/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">

           <!--  配置dataSource -->
           <bean id="c3p0DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
               <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
               <property name="jdbcUrl" value="jdbc:mysql:///day26?useSSL=true"></property>
               <property name="user" value="root"></property>
               <property name="password" value=""></property>
               <property name="initialPoolSize" value=""></property>
               <property name="maxPoolSize" value=""></property>
               <property name="maxStatements" value=""></property>
               <property name="acquireIncrement" value=""></property>
           </bean>

           <!--  配置sessionFactory -->
           <bean id="sessionFac" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
               <!-- 2.1 配置数据源 -->
               <property name="dataSource" ref="c3p0DataSource"></property>

               <!-- 2.2 数据库其他配置 -->
               <property name="hibernateProperties">
                   <props>
                       <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                       <prop key="hibernate.show_sql">true</prop>
                   </props>
               </property>

               <!-- 2.3 加载映射文件 -->
               <property name="mappingLocations">
                   <list>
                       <value>classpath:com/huitong/entity/*.hbm.xml</value>
                   </list>
               </property>
           </bean>

           <!-- 3 配置dao/service/action类 -->
           <bean id="employeeDao" class="com.huitong.dao.EmployeeDao">
               <property name="sessionFactory" ref="sessionFac"></property>
           </bean>

           <bean id="employeeService" class="com.huitong.service.EmployeeService">
               <property name="employeeDao" ref="employeeDao"></property>
           </bean>

           <!-- 4 事务配置 -->
           <!-- 4.1 transaction manager class config -->
           <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
               <property name="sessionFactory" ref="sessionFac"></property>
           </bean>

           <!-- 4.2 transaction advice config -->
           <tx:advice id="txAdvice" transaction-manager="txManager">
               <tx:attributes>
                   <tx:method name="get*" read-only="true"/>
                   <tx:method name="query*" read-only="true"/>
                   <tx:method name="*"/>
               </tx:attributes>
           </tx:advice>

           <!-- 4.3 AOP config -->
           <aop:config>
               <aop:pointcut expression="execution(* com.huitong.service.*.save*(..))" id="pt"/>
               <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
           </aop:config>

</beans>

5 至此完成开发，简单测试如下

public void fun1(){
        ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext("bean.xml");
        EmployeeService employeeService = (EmployeeService) ac.getBean("employeeService");
        System.out.println(employeeService);    // spring ok?

        Employee employee = new Employee();
        employee.setEname("good");
        employeeService.saveEmp(employee);      //hibernate ok?
    }

二、事务配置

1） 声明事务管理器类

2）事务增强

3）AOP配置拦截点