<?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" 
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-4.3.xsd
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
    <!-- 读取db.properties -->
    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置数据源 -->
	<bean id="dataSource" 
                           class="org.apache.commons.dbcp2.BasicDataSource">
		<!--数据库驱动 -->
		<property name="driverClassName" value="${jdbc.driver}" />
		<!--连接数据库的url -->
		<property name="url" value="${jdbc.url}" />
		<!--连接数据库的用户名 -->
		<property name="username" value="${jdbc.username}" />
		<!--连接数据库的密码 -->
		<property name="password" value="${jdbc.password}" />
		<!--最大连接数 -->
		<property name="maxTotal" value="${jdbc.maxTotal}" />
		<!--最大空闲连接  -->
		<property name="maxIdle" value="${jdbc.maxIdle}" />
		<!--初始化连接数  -->
		<property name="initialSize" value="${jdbc.initialSize}" />
	</bean>
     <!-- 事务管理器，依赖于数据源 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>	
    <!-- 开启事务注解 -->
	<tx:annotation-driven transaction-manager="transactionManager"/>
    <!-- 配置MyBatis工厂SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <!--注入数据源 -->
         <property name="dataSource" ref="dataSource" />
         <!--指定核MyBatis心配置文件位置 -->
          <property name="configLocation" value="classpath:mybatis-config.xml" />
    </bean>
    <!-- 配置mapper扫描器 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.itheima.dao"/>
	</bean>
    <!-- 扫描Service --> 
    <context:component-scan base-package="com.itheima.service" />
</beans>
