Spring基础(6) ： 普通Bean对象中保存ApplicationContext

public class Person implements ApplicationContextAware{

    ApplicationContext context;
    public String name;

    public String getName() {
        return name;
    }

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

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.context = applicationContext;
    }

    public void printP1name(){
      Person p=  context.getBean("p1",Person.class);
      System.out.println("p1name="+p.getName());
    }
}

Person类实现 ApplicationContextAware ，在创建该bean的时候，会将context注入到bean中。

public class Main {
    public static void main(String[] args){
        ApplicationContext context = new ClassPathXmlApplicationContext("a.xml");
        Person p = context.getBean("p",Person.class);
        p.printP1name();
    }
}

<?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-3.0.xsd">

    <bean id="p1" class="com.Person">
       <property name="name" value="p1"/>
    </bean>

    <bean id="p" class="com.Person"/>
</beans>

打印：

p1name=p1