transaction을 위한 빈추가

servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:beans="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
		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-4.3.xsd">

    <!-- connection이 가진 tx기능을 spring jdbc에게 위임 -->
    <beans:bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
       <beans:property name="dataSource" ref="dataSource" />
    </beans:bean>
    
    <tx:annotation-driven />
    
    <!-- 스프링이 가로채 인터페이스를 만들어 인터페이스를 구현한 클래스를 만든다 
    proxy 는 무언가를 가로채는 것/ 인터페이스를 쓸것이면 추가 안해도 되고 안쓸거면 써야댄다-->
	<tx:annotation-driven proxy-target-class="true"/>
	
</beans:beans>