spring框架学习（9）bean的自动装配
Bean的自动装配
1、自动装配是spring满足bean依赖的一种方式
2、spring会在上下文寻找，并自动给bean装配属性
在spring中有三种装配方式
1、在xml中显示装配
2、在java中显示装配
3、隐示的自动装配
自动装配
1.环境搭建
<bean id="dog" class="com.yms.entiry.Dog"></bean>
<bean id="cat" class="com.yms.entiry.Cat"></bean>
<bean id="people" class="com.yms.entiry.People">
<property name="name" value="小明"></property>
<property name="cat" ref="cat"></property>
<property name="dog" ref="dog"></property>
</bean>
import com.yms.entiry.People;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
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@Author 杨明书
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@PackageName: PACKAGE_NAME
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@ClassName: MyTest
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@Description:
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@Date: 2021/12/29 16:39
*/
public class MyTest {public static void main(String[] args) {
People people = new ClassPathXmlApplicationContext("beans.xml").getBean("people", People.class); people.getDog().dogShut(); people.getCat().shut(); System.out.println(people.toString());}
}
