Question

spring 被引用的bean可以在后面配置吗

Answer 1

<bean id="bean1" class="com.Bean1" />
<!-- 配置一个prototype Bean实例 -->
<bean id="bean2" class="com.Bean2" scope="prototype"/>
</beans>
程序中获取bean的操作：
public class SpringTest {
public static void main(String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("bean.xml");
//判断两次请求singleton作用域的Bean实例是否相等
System.out.println(ctx.getBean("bean1")==ctx.getBean("bean1"));
//判断两次请求prototype作用域的Bean实例是否相等
System.out.println(ctx.getBean("bean2")==ctx.getBean("bean2"));
}