使用Spring的事务注解管理事务

àì夳堔傛蜴生んèń 2022-06-17 01:51 266阅读 0赞

# 使用Spring的事务注解管理事务 #

## 添加约束 ##

## service添加注解 ##

package com.hk.springdao.serviceimpl;
    
    import org.springframework.transaction.annotation.Isolation;
    import org.springframework.transaction.annotation.Propagation;
    import org.springframework.transaction.annotation.Transactional;
    
    import com.hk.springdao.dao.IAccountDao;
    import com.hk.springdao.dao.IStockDao;
    import com.hk.springdao.exception.BuyStockException;
    import com.hk.springdao.service.IBuyStockService;
    
    public class BuyStockServiceImpl implements IBuyStockService { 
    
        private IAccountDao accountDao;
        private IStockDao stockDao;
    
        public void setAccountDao(IAccountDao accountDao) {
            this.accountDao = accountDao;
        }
    
        public void setStockDao(IStockDao stockDao) {
            this.stockDao = stockDao;
        }
        @Transactional(isolation=Isolation.DEFAULT,propagation=Propagation.REQUIRED)
        @Override
        public void openAccount(String aname, double money) {
            accountDao.insertAccount(aname, money);
        }
        @Transactional(isolation=Isolation.DEFAULT,propagation=Propagation.REQUIRED)
        @Override
        public void openStock(String sname, int count) {
            stockDao.insertStock(sname, count);
        }
        @Transactional(isolation=Isolation.DEFAULT,propagation=Propagation.REQUIRED,rollbackFor=BuyStockException.class)
        @Override
        public void buyStock(String aname, double money, String sname, int count) throws BuyStockException{
            boolean isBuy = true;
            stockDao.updateStock(sname, count,isBuy);
            if(1==1){
                throw new BuyStockException("股票没买上，明儿起早");
            }
            accountDao.updateAccount(aname, money,isBuy);
    
        }
    
    }

## 完整配置文件 ##

<?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: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.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">
    
            
            <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
                <property name= "driverClass" value="${jdbc.driver}"></property>
                <property name="jdbcUrl" value="${jdbc.url}"></property>
                <property name="user" value="${jdbc.username}"></property>
                <property name="password" value="${jdbc.password}"></property>
            </bean>
            
            <context:property-placeholder location="classpath:jdbc.properties"/>
            
             
            <bean id="accountDao" class="com.hk.springdao.daoimpl.AccountDaoImpl">
                <property name="dataSource" ref="dataSource"></property>
            </bean>
            <bean id="stockDao" class="com.hk.springdao.daoimpl.StockDaoImpl">
                <property name="dataSource" ref="dataSource"></property>
            </bean>
            
            <bean id="buyStockService" class="com.hk.springdao.serviceimpl.BuyStockServiceImpl">
                <property name="accountDao" ref="accountDao"></property>
                <property name="stockDao" ref="stockDao"></property>
            </bean>
            
            
            <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                <property name="dataSource" ref="dataSource"></property>
            </bean>
            
            <tx:annotation-driven transaction-manager="transactionManager"/>
    </beans>

## 项目源码 ##

**项目源码：**[http://pan.baidu.com/s/1gfFsPEj][http_pan.baidu.com_s_1gfFsPEj]

[http_pan.baidu.com_s_1gfFsPEj]: http://pan.baidu.com/s/1gfFsPEj