Spring 使用配置文件读取jdbc.properties

在beans.xml中加入两个必须的bean

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="/WEB-INF/jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean>
在web-inf下面的jdbc.properties

jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://210.30.12.3:3306/spring jdbc.username=root jdbc.password=sa