<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="sa"></property>
        <property name="password" value="111111"></property>
        <property name="driverClass" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"></property>
        <property name="jdbcUrl" value="jdbc:sqlserver://localhost:1433;databaseName=test"></property>
    </bean>

</beans>

public class Main {
    @SuppressWarnings("resource")
    public static void main(String[] args) throws SQLException {
        ApplicationContext cxt = new ClassPathXmlApplicationContext(
                "beans-properties.xml");
        DataSource dataSource = (DataSource) cxt.getBean("dataSource");
        System.out.println(dataSource.getConnection());
    }
}