Spring事务管理-注解版

一、拷贝必要的jar包到工程的lib目录

二、创建spring的配置文件并导入约束

<?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: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/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">    
</beans>

三、准备数据库表和实体类

package com.yiidian.domain;

import java.io.Serializable;
/**
 * @author http://www.yiidian.com
 * 
 */
public class Account implements Serializable{
	private Integer id;
	private String name;
	private Float money;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Float getMoney() {
		return money;
	}
	public void setMoney(Float money) {
		this.money = money;
	}
	@Override
	public String toString() {
		return "Account [id=" + id + ", name=" + name + ", money=" + money
				+ "]";
	}

	
}

<?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">
<!-- 
	http://www.yiidian.com
 -->    
<hibernate-mapping>
	<class name="com.yiidian.domain.Account" table="account">
		<id name="id" column="id">
			<generator class="native"></generator>
		</id>
		<property name="name" column="name"></property>
		<property name="money" column="money"></property>
	</class>
</hibernate-mapping>

四、编写业务层接口和实现类

AccountService：

package com.yiidian.service;

import com.yiidian.domain.Account;
/**
 * @author http://www.yiidian.com
 * 
 */
public interface AccountService {
	/**
	 * 根据id查询账户信息
	 * @param id
	 * @return
	 */
	Account findAccountById(Integer id);//查
	
	/**
	 * 转账
	 * @param sourceName	转出账户名称
	 * @param targeName		转入账户名称
	 * @param money			转账金额
	 */
	void transfer(String sourceName,String targeName,Float money);//增删改
}

AccountServiceImpl：

package com.yiidian.service.impl;

import org.springframework.transaction.annotation.Transactional;

import com.yiidian.dao.AccountDao;
import com.yiidian.domain.Account;
import com.yiidian.service.AccountService;
/**
 * @author http://www.yiidian.com
 * 
 */
@Transactional
public class AccountServiceImpl implements AccountService {
	private AccountDao accountDao;

	public void setAccountDao(AccountDao accountDao) {
		this.accountDao = accountDao;
	}

	@Override
	public Account findAccountById(Integer id) {
		return accountDao.findAccountById(id);
	}

	@Override
	public void transfer(String sourceName, String targeName, Float money) {
		// 1.根据名称查询两个账户
		Account source = accountDao.findAccountByName(sourceName);
		Account target = accountDao.findAccountByName(targeName);
		// 2.修改两个账户的金额
		source.setMoney(source.getMoney() - money);// 转出账户减钱
		target.setMoney(target.getMoney() + money);// 转入账户加钱
		// 3.更新两个账户
		accountDao.updateAccount(source);
		//模拟异常
		int i = 1 / 0;
		accountDao.updateAccount(target);
	}
}

五、编写Dao接口和实现类

AccountDao：

package com.yiidian.dao;

import com.yiidian.domain.Account;

/**
 * 
 * @author http://www.yiidian.com
 * 
 */
public interface AccountDao {

	/**
	 * 根据id查询账户信息
	 * @param id
	 * @return
	 */
	Account findAccountById(Integer id);

	/**
	 * 根据名称查询账户信息
	 * @return
	 */
	Account findAccountByName(String name);
	
	/**
	 * 更新账户信息
	 * @param account
	 */
	void updateAccount(Account account);
}

AccountDaoImpl:

package com.yiidian.dao.impl;

import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.yiidian.dao.AccountDao;
import com.yiidian.domain.Account;
/**
 * 
 * @author http://www.yiidian.com
 * 
 */
public class AccountDaoImpl extends HibernateDaoSupport  implements AccountDao{
	@Override
	public Account findAccountById(Integer id) {
		return this.getHibernateTemplate().get(Account.class, id);
	}

	@Override
	public Account findAccountByName(String name) {
		return (Account) this.getHibernateTemplate().find("from Account where name = ?", name).get(0);
	}

	@Override
	public void updateAccount(Account account) {
		this.getHibernateTemplate().update(account);
	}
}

六、配置业务层和持久层，加上Spring事务管理

<?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: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/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">
        
     <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
     	<property name="location" value="classpath:jdbc.properties"/>
     </bean> 
     
     <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
     	<property name="driverClassName" value="${jdbc.driverClass}"/>
     	<property name="url" value="${jdbc.url}"/>
     	<property name="username" value="${jdbc.username}"/>
     	<property name="password" value="${jdbc.password}"/>
     </bean>
     
     <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
     	<property name="dataSource" ref="dataSource"></property>
     	<property name="hibernateProperties">
     		<props>
     			<prop key="hibernate.show_sql">true</prop>
     			<prop key="hibernate.format_sql">true</prop>
     			<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
     		</props>
     	</property>
     	<property name="mappingResources">
     		<list>
     			<value>com/yiidian/domain/Account.hbm.xml</value>
     		</list>
     	</property>
     </bean>  

     <bean id="accountDao" class="com.yiidian.dao.impl.AccountDaoImpl">
     	<property name="sessionFactory" ref="sessionFactory"/>
     </bean>
     
     <bean id="accountService" class="com.yiidian.service.impl.AccountServiceImpl">
     	<property name="accountDao" ref="accountDao"/>
     </bean>
     
     <!-- 配置一个Hibernate事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate5.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>

	 <!-- 开启spring对注解事务的支持 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

七、编写测试类

package com.yiidian.test;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.yiidian.service.AccountService;
/**
 * @author http://www.yiidian.com
 *
 */
public class HibernateTemplateDemo {
	@Test
	public void test1() {
		ApplicationContext ac = new ClassPathXmlApplicationContext(
				"applicationContext.xml");
		AccountService accountService = (AccountService)ac.getBean("accountService");
		accountService.transfer("小苍", "小泽", 300f);
	}
}

源码下载：http://pan.baidu.com/s/1mhTXqnY