Spring抽象Bean与继承示例-优快云博客

本文通过一个具体的示例介绍了Spring框架中如何使用抽象Bean和继承特性来简化配置文件的编写，展示了如何定义抽象Bean并让其他Bean继承其属性。

applicationContext.xml

<?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-2.5.xsd">
    <!-- 
    	abstract
    	  spring容器不会为该类创建对象
     -->
	<bean id="person" class="cn.itcast.spring0909.extend.Person" abstract="true">
		<property name="name" value="王二麻子的哥"></property>
	</bean>
	<!-- 
		parent
		  让子类拥有父类的属性的值
	 -->
	<bean id="student" class="cn.itcast.spring0909.extend.Student" >
		<property name="name" value="aaaaa"></property>
	</bean>
</beans>

public abstract class Person {
	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

public class Student extends Person{
	public void say(){
		System.out.println(this.getName());
	}
}

public class PersonTest extends SpringHelper{
	static{
		path = "cn/itcast/spring0909/extend/applicationContext.xml";
	}
	
	@Test
	public void test(){
		Student student = (Student)context.getBean("student");
		student.say();
	}
}