spring 中dataSource配置

1、Spring配置文件中：

<context:property-placeholder location="db.properties"/

<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
    <property name="driverClassName" value="${jdbc.driver}"/>
    <property name="url" value="${jdbc.url}"/>
    <property name="username" value="${jdbc.username}"/>
    <property name="password" value="${jdbc.password}"/>
</bean>

2、org.apache.commons.dbcp2.BasicDataSource 在commons-dbcp.jar下，commons-dbcp.jar 下载地址https://mp.youkuaiyun.com/postedit/79786568

3、db.properties文件内容

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获取spring配置文件beans.xml

applicationContext = new ClassPathXmlApplicationContext("beans.xml");