config/spring-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:task="http://www.springframework.org/schema/task"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
      http://www.springframework.org/schema/aop 
      http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.2.xsd
      http://www.springframework.org/schema/task
      http://www.springframework.org/schema/task/spring-task-3.2.xsd
      http://www.springframework.org/schema/tx 
      http://www.springframework.org/schema/tx/spring-tx-3.2.xsd" >

<!-- 自动扫描 -->  
    <context:component-scan base-package="com.xx.supermarket.service" />  
    <context:component-scan base-package="com.xx.supermarket.dao" />  
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!-- 配置DataSource数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
		<!-- 基本属性 url、user、password -->  
	    <property name="url" value="${jdbc.url}" />  
	    <property name="username" value="${jdbc.username}" />  
	    <property name="password" value="${jdbc.password}" />  
	        
	    <!-- 配置初始化大小、最小、最大 -->  
	    <property name="initialSize" value="1" />  
	    <property name="minIdle" value="1" />   
	    <property name="maxActive" value="20" />  
	   
	    <!-- 配置获取连接等待超时的时间 -->  
	    <property name="maxWait" value="60000" />  
	   
	    <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->  
	    <property name="timeBetweenEvictionRunsMillis" value="60000" />  
	   
	    <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->  
	    <property name="minEvictableIdleTimeMillis" value="300000" />  
	    
	    <property name="validationQuery" value="SELECT 'x'" />  
	    <property name="testWhileIdle" value="true" />  
	    <property name="testOnBorrow" value="false" />  
	    <property name="testOnReturn" value="false" />  
	   
	    <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->  
	    <property name="poolPreparedStatements" value="true" />  
	    <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />  
	   
	    <!-- 配置监控统计拦截的filters，去掉后监控界面sql无法统计 -->  
	    <property name="filters" value="stat" />  
	</bean>
	
	<!-- 定义Myibatis,dao可自动注入 -->
 <!--    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.xx.supermarket.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />