applicationContext

<?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:jdbc="http://www.springframework.org/schema/jdbc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.2.xsd
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
       http://www.springframework.org/schema/jdbc
       http://www.springframework.org/schema/jdbc/spring-jdbc-4.2.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.2.xsd">
    <!-- spring 扫包 @Service -->
    <context:component-scan base-package="">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 引入配置文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <!--加载配置文件-->
        <context:property-placeholder location="classpath:resource/db.properties"/>
    </bean>

    <!--数据库连接池-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          destroy-method="close">
        <property name="url" value="${jdbc.url}"/>
        <property name="name" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="maxActive" value="10"/>
        <property name="minIdle" value="5"/>
    </bean>


    <!-- mybatis 配置-->
    <!--spring和mybatis完美结合，不需要mybatis配置映射文件-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--mapperLocations：它表示我们的Mapper文件存放的位置，
        当我们的Mapper文件跟对应的Mapper接口处于同一位置的时候可以不用指定该属性的值。
        mapper文件就是xml文件-->
        <!--自动扫描mapper.xml文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        <property name="typeAliasesPackage" value="demo.bean"/>
    </bean>
    <!-- 扫包 -->
    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--这个扫描包必须写到准确的路径下-->
        <property name="basePackage" value="demo.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>


    <!--配置扫描所有dao包，加载mapper对象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="mapper"/>
        <!--<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />-->
    </bean>

    <!-- 事务配置 -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
</beans>