Overwrite bean definition in spring xml configuration file with another xml

Spring ClassPathXmlApplicationContext etc. is multiple as in javadoc If you specify a bean definition, the later bean definition will overwrite the previous one.

src.xml


<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="str" class="java.lang.String">
		<constructor-arg value="aaa">
		</constructor-arg>
	</bean>
</beans>

overwrite.xml


<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="str" class="java.lang.String">
		<constructor-arg value="bbb">
		</constructor-arg>
	</bean>
</beans>
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class XMLConfOverwrite {

	public static void main(String[] args) {
		
		ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("src.xml");
		System.out.println(ctx.getBean("str"));//aaa
		
		ClassPathXmlApplicationContext ctx2 = new ClassPathXmlApplicationContext("src.xml", "overwrite.xml");
		System.out.println(ctx2.getBean("str"));//bbb
	}

}

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