Spring之使用注解实现声明式事务

一、导入jar包：

 并导入数据库连接jar包：

 

 

 下载

 pool.jar一定要下载1.x版本，亲测2.xxx版本会出现报错：Failed to introspect bean class [org.apache.commons.dbcp.BasicDataSource] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool/KeyedObjectPoolFactory。

在applicationContext.xml文件中：

<!-- 数据库配置 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/student?characterEncoding=UTF-8"></property>
		<property name="username" value="root"></property>
		<property name="password" value="893225523"></property>
		<property name="maxActive" value="10"></property>	
		<property name="maxIdle" value="6"></property>		
	</bean>
	
	<!-- 配置事务管理器txManager -->
	<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- 增加对事务的支持 -->
	<tx:annotation-driven transaction-manager="txManager"/>