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
spring3.2.9core\commons-logging-1.2.jar
spring3.2.9core\spring-beans-3.2.9.RELEASE.jar
spring3.2.9core\spring-context-3.2.9.RELEASE.jar
spring3.2.9core\spring-core-3.2.9.RELEASE.jar
spring3.2.9core\spring-expression-3.2.9.RELEASE.jar

//hibernate core
hibernate3.6core\antlr-2.7.6.jar
hibernate3.6core\commons-collections-3.1.jar
hibernate3.6core\dom4j-1.6.1.jar
hibernate3.6core\hibernate3.jar
hibernate3.6core\hibernate-jpa-2.0-api-1.0.1.Final.jar
hibernate3.6core\javassist-3.12.0.GA.jar
hibernate3.6core\jta-1.1.jar
hibernate3.6core\slf4j-api-1.6.1.jar
hibernate3.6core\slf4j-nop-1.7.25.jar

//DB_connector
DB-connector\c3p0-0.9.1.2.jar
DB-connector\mysql-connector-java-5.1.40-bin.jar
DB-connector\spring-jdbc-3.2.9.RELEASE.jar

//AOP
springAOP\aopalliance.jar
springAOP\aspectjrt.jar
springAOP\aspectjweaver.jar
springAOP\spring-aop-3.2.9.RELEASE.jar

//spring_ORM
spring-ORM\spring-orm-3.2.9.RELEASE.jar
spring-ORM\spring-tx-3.2.9.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);
}

}

View Code

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">

<!-- 1 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="123456"></property>
<property name="initialPoolSize" value="2"></property>
<property name="maxPoolSize" value="20"></property>
<property name="maxStatements" value="10"></property>
<property name="acquireIncrement" value="2"></property>
</bean>

<!-- 2 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