<?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.xsdhttp://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="111"/></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="111"/></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="111"/></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>