spring 与事务相关代码

package cn.itcast.spring.hibernate;

import java.util.List;

import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;

import cn.itcast.spring.domain.Customer;

public class CustomerServiceImpl implements CustomerService {
	//dao
	private CustomerDao dao ;
	
	//事务模板,封装事务管理的样板代码
	private TransactionTemplate tt ;
	//注入事务模板
	public void setTt(TransactionTemplate tt) {
		this.tt = tt;
	}

	//注入dao
	public void setDao(CustomerDao dao) {
		this.dao = dao;
	}

	public List<Customer> findCustomerByName(String name) {
		return dao.findCustomerByName(name);
	}

	public void insertCustomer(Customer c) {
		dao.insertCustomer(c);
	}

	/**
	 * 批量保存, 编程式事务管理
	 */
	public void saveCustomers(final List<Customer> list) {
//		for(Customer c : list){
//			dao.insertCustomer(c);
//		}
		tt.execute(new TransactionCallback(){
			public Object doInTransaction(TransactionStatus status) {
				try {
					for(Customer c : list){
						dao.insertCustomer(c);
					}
				} catch (RuntimeException e) {
					e.printStackTrace();
					//设置回滚
					status.setRollbackOnly();
				}
				return null;
			}});
	}

	public void updateCustomer(Customer c) {
		dao.updateCustomer(c);
	}
}

 

 

  声明式：

package cn.itcast.spring.hibernate;

import java.util.List;

import org.springframework.aop.framework.AopContext;
import org.springframework.aop.support.AopUtils;

import cn.itcast.spring.domain.Customer;

/**
 * 声明式事务管理,通过aop框架实现
 */
public class CustomerServiceDeclareImpl implements CustomerService {
	//dao
	private CustomerDao dao ;

	//注入dao
	public void setDao(CustomerDao dao) {
		this.dao = dao;
	}

	public List<Customer> findCustomerByName(String name) {
		return dao.findCustomerByName(name);
	}

	public void insertCustomer(Customer c) {
		dao.insertCustomer(c);
	}

	/**
	 * 批量保存, 编程式事务管理
	 */
	public void saveCustomers(final List<Customer> list) {
		CustomerService proxy = (CustomerService) AopContext.currentProxy();
		System.out.println(proxy);
		for(Customer c : list){
			proxy.insertCustomer(c);
		}
	}

	public void updateCustomer(Customer c) {
		dao.updateCustomer(c);
	}
}

 

  配置文件：

 

<?xml version="1.0"?>
<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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
                        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
                        http://www.springframework.org/schema/context 
                        http://www.springframework.org/schema/context/spring-context-2.5.xsd ">
    <!-- 指定分散配置的文件的位置 -->
    <context:property-placeholder location="classpath:cn/itcast/spring/hibernate/jdbc.properties"/>
    <!-- 配置c3p0数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverclass}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />

        <property name="maxPoolSize" value="${c3p0.pool.size.max}" />
        <property name="minPoolSize" value="${c3p0.pool.size.min}" />
        <property name="initialPoolSize" value="${c3p0.pool.size.ini}" />
        <property name="acquireIncrement" value="${c3p0.pool.size.increment}" />
    </bean>
    
    <!-- 本地回话工厂bean,spring整合hibernate的核心入口 -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 指定hibernate自身的属性 -->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
            </props>
        </property>
        <!-- 映射资源文件的位置
        <property name="mappingResources">
            <list>
                <value>classpath:cn/itcast/spring/domain/Customer.hbm.xml</value>
            </list>
        </property>
         -->
        <property name="mappingDirectoryLocations">
            <list>
                <value>classpath:cn/itcast/spring/domain</value>
            </list>
        </property>
        <!-- 使用hibernate自身的配置文件配置
        <property name="configLocations">
            <list>
                <value>classpath:hibernate.cfg.xml</value>
            </list>
        </property>
        -->
    </bean>
    
    <!-- hibernate模板,封装样板代码 -->
    <bean id="ht" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    
    <!-- customerDao -->
    <bean id="customerDao" class="cn.itcast.spring.hibernate.CustomerDaoImpl">
        <property name="ht" ref="ht" />
    </bean>
    
    <!-- hibernate事务管理器,在service层面上实现事务管理,而且达到平台无关性 -->
    <bean id="htm" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    
    <!-- customerService,目标对象 -->
    <bean id="customerServiceTarget" class="cn.itcast.spring.hibernate.CustomerServiceDeclareImpl">
        <property name="dao" ref="customerDao" />
    </bean>
    
    <!-- 抽象的事务代理对象,专门用于继承 -->
    <bean id="abstracTx" 
        abstract="true"
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
        <!-- 注入事务管理器 -->
        <property name="transactionManager" ref="htm" />
        <!-- 事务属性集(设置事务策略的) -->
        <property name="transactionAttributes">
            <props>
                <prop key="insertCustomer">PROPAGATION_MANDATORY,ISOLATION_DEFAULT</prop>
                <prop key="saveCustomers">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop>
                <prop key="update*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop>
                <prop key="delete*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop>
                
                <prop key="load*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop>
                <prop key="get*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop>
                <prop key="find*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop>
                
                <prop key="*">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop>
            </props>
        </property>
    </bean>
    
    <!-- 具体的事务代理对象 -->
    <bean id="customerService" parent="abstracTx">
        <property name="proxyInterfaces">
            <value>cn.itcast.spring.hibernate.CustomerService</value>
        </property>
        <!-- 暴露代理 -->
        <property name="exposeProxy" value="true" />
        <property name="target" ref="customerServiceTarget" />
    </bean>
</beans>