Spring中的事物管理,基于spring的bean的配置

时间:2024-01-13 15:10:26

很多东西与上边的相同,这儿只简介;

导包。。。

数据库中建立三个表。。。

建立存放连接数据库的file文件:jdbc.properties;

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com.atguigu.spring.tx.xml包下建立,

接口:BookShopDao

类:BookShopDaoImpl 继承于接口,BookShopDao

异常处理类:BookStockException

测试类:JUnitTest

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com.atguigu.spring.tx.xml.service包下建立:在配置事物切点的时候便于识别<aop:pointcut expression="execution(* com.atguigu.spring.tx.xml.service.*.*(..))"  id="txPointCut"/>

接口:BookShopService

接口:Cashier

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com.atguigu.spring.tx.xml.service.impl包下建立:

类:BookShopServiceImpl,继承于接口 BookShopService

类:CashierImpl,继承于接口 Cashier

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spring的xml文件中的bean配置

<?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:context="http://www.springframework.org/schema/context"
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-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 导入资源文件 -->
<context:property-placeholder location="classpath:jdbc.properties"/> <!-- 配置c3p0数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property> <property name="initialPoolSize" value="${jdbc.initPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property>
</bean> <!-- 配置spring 的 JdbcTemplate ,里面有一些jdbc的方法,实现对数据库数据的增删改查-->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean> <!-- 配置bean,可以识别它的属性和它的set方法 -->
<bean id="bookShopDao" class="com.atguigu.spring.tx.xml.BookShopDaoImpl">
<property name="jdbcTemplae" ref="jdbcTemplate"></property>
</bean> <bean id="bookShopService" class="com.atguigu.spring.tx.xml.service.impl.BookShopServiceImpl">
<property name="bookShopDao" ref="bookShopDao"></property>
</bean> <bean id="cashier" class="com.atguigu.spring.tx.xml.service.impl.CashierImpl">
<property name="bookShopService" ref="bookShopService"></property>
</bean> <!-- 1.配置事物管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean> <!-- 2.配置事物属性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 根据方法名指定事物的属性 -->
<tx:method name="purchase" propagation="REQUIRES_NEW"/>
<tx:method name="get*" read-only="true"/>
<tx:method name="find*" read-only="true"/>
<tx:method name="*"/>
</tx:attributes>
</tx:advice> <!-- 3.配置事物切入点,以及把事物切入点和事物的属性关联起来,
* com.atguigu.spring.tx.xml.service.*.*(..)指扫描在这个包下继承这些接口的类的接口-->
<aop:config>
<aop:pointcut expression="execution(* com.atguigu.spring.tx.xml.service.*.*(..))"
id="txPointCut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
</aop:config>
</beans>