<?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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="

        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">

   <!-- 注册数据源：Spring内置数据源 -->

   <!--

   <bean id="myDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

           <property name="driverClassName" value="com.mysql.jdbc.Driver"/>

           <property name="url" value="jdbc:mysql://127.0.0.1:3366/test"/>

           <property name="username" value="root"/>

           <property name="password" value=""/>

   </bean>

    -->

   <!-- 注册数据源：DBCP -->

   <!--

   <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource">

           <property name="driverClassName" value="com.mysql.jdbc.Driver"/>

           <property name="url" value="jdbc:mysql://127.0.0.1:3366/test"/>

           <property name="username" value="root"/>

           <property name="password" value=""/>

   </bean>

    -->

   <!-- 注册数据源：C3P0 -->

   <!--

   <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

           <property name="driverClass" value="com.mysql.jdbc.Driver"/>

           <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3366/test"/>

           <property name="user" value="root"/>

           <property name="password" value=""/>

   </bean>

    -->

   <!-- 注册数据源：C3P0 -->

   <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

           <property name="driverClass" value="${jdbc.driver}"/>

           <property name="jdbcUrl" value="${jdbc.url}"/>

           <property name="user" value="${jdbc.user}"/>

           <property name="password" value="${jdbc.password}"/>

   </bean>

   <!-- 注册属性文件：方式一 -->

   <!--

   <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

           <property name="location" value="classpath:jdbc.properties"/>

   </bean>

    -->

   <!-- 注册属性文件：方式二 -->

   <context:property-placeholder location="classpath:jdbc.properties"/>

   <!-- 注册Jdbc模板对象 -->

   <!--

   <bean id="myJdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">

           <property name="dataSource" ref="myDataSource"/>

   </bean>

   <bean id="studentDao" class="com.bjpowernode.dao.StudentDaoImpl">

           <property name="jdbcTemplate" ref="myJdbcTemplate"/>

   </bean>

    -->

   <!-- 注册Dao -->

   <bean id="studentDao" class="com.bjpowernode.dao.StudentDaoImpl">

           <property name="dataSource" ref="myDataSource"/>

   </bean>

   <!-- 注册Service -->

   <bean id="studentService" class="com.bjpowernode.service.StudentServiceImpl">

           <property name="dao" ref="studentDao"/> //如果是动态代理生成dao实现类，这里注入使用接口，一般接口IStudentDao以I开头，如果是StudentDao命名的接口，这里的studentDao首字母是小写s

   </bean>