user=LF

password=LF

url=jdbc:oracle:thin:@localhost:1521:orcl

driver=oracle.jdbc.driver.OracleDriver

<?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:p="http://www.springframework.org/schema/p"

    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">

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

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

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

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

        <property name="driverClassName" value="${driver}"></property>

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

    </bean>

</beans>

public class Utils_jdbc {

    public static void main(String[] args) {

        ApplicationContext ctc = new ClassPathXmlApplicationContext("applicationContext.xml");

        DriverManagerDataSource dSource = (DriverManagerDataSource) ctc.getBean("connection");

        try {

            System.out.println(dSource.getConnection());

        } catch (SQLException e) {

            e.printStackTrace();

        }

    }

}