spring两种不同的配置，使用c3p0连接数据库

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配置一

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/spring

jdbc.user=root

jdbc.password=root

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

<bean id="dataSource" 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>

配置二

driverClass=com.mysql.jdbc.Driver

jdbcUrl=jdbc:mysql://localhost:3306/emp

user=root

password=root

<util:propertiesid="cp"location="classpath:c3p0.properties"></util:properties>

<beanid="c3p0"class="com.mchange.v2.c3p0.ComboPooledDataSource"

destroy-method="close">

<propertyname="driverClass"value="#{cp.driverClass}"></property>

<propertyname="jdbcUrl"value="#{cp.jdbcUrl}"></property>

<propertyname="user"value="#{cp.user}"></property>

<propertyname="password"value="#{cp.password}"></property>

</bean>

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