Spring's DAO layer configuration file

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 4     xmlns:context="http://www.springframework.org/schema/context"
 5     xmlns:tx="http://www.springframework.org/schema/tx"
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
 7            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 
 8 
 9     <!-- 加载mysql数据配置文件 -->
10     <context:property-placeholder location="classpath:database.properties"/>
11      
12     <!-- 配置datasource数据源对象 -->
13     <bean id="dataSource" class="com.mchange.v2.c3p0.mbean.C3P0PooledDataSource">
14         <property name="driverClass" value="${jdbc.driver}" />
15         <property name="jdbcUrl" value="${jdbc.url}" />
16         <property name="user" value="${jdbc.username}" />
17         <property name="password" value="${jdbc.password}" />
         <Property name = "the maxPoolSize" value = "30" />
. 19         <! - Private property c3p0 data source ->
1820 is          <Property name = "minPoolSize" value = "30" />
 21 is          <-! After closing the connection does not automatically submit ->
 22 is          <Property name = "autoCommitOnClose" value = "to false" />
 23 is          <! - obtaining a connection timeout ->
 24          <Property name = "checkoutTimeout" value = "10000" />
 25          <-! obtain connection failure, the number of retries ->
 26 is          <Property name = "acquireIncrement" value = "2" />
 27      </ the bean>
 28      
29      <-! sqlSessionFactory Object configuration ->
 30      <the bean ID = "sqlSessionFactory" class = "org.mybatis.spring.
The SqlSessionFactoryBean "> 31          <-! Implantation database connection pool, here is why the ref because dataSource need is an object -?>
32          <Property name = "the dataSource" REF = "the dataSource" />
 33 is          <-! Scanning package entity, alias (where the entity class package) ->
 34 is          <Property name = "typeAliasesPackage" value = "com.imooc .o2o.entity "/>
 35          <- configuration mybatis global profile:! mybatis-the config.xml ->
 36          <Property name =" the configLocation "value =" CLASSPATH: mybatis-the config.xml "/>
 37 [          <! - scan sql profile: xml file mapper needs ->
 38 is          <Property name = "the mapperLocations" value = "CLASSPATH: mapper / * XML." />
 39      </ the bean>
 40  
41 is      <!
- DAO interface package configuration where the scan, to achieve dynamic DAO interface, is injected into the vessel spring -> 42 is      <the bean   class= "org.mybatis.spring.mapper.MapperScannerConfigurer"> 
 43          <-! injection sqlSessionFactory object here is why the value? Because sqlSessionFactoryBeanName needed is a string String ->
 44 is          <Property name = "sqlSessionFactoryBeanName" value = "SqlSessionFactory" />
 45          <Property name = "basePackage" value = "CLASSPATH: com.imooc.o2o.dao" />
 46 is      </ the bean>
 47 </ Beans>