ApplicationContext Aware : ApplicationContext « Spring « Java Tutorial

1. Java Tutorial
2. Spring
3. ApplicationContext

File: context.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.xsd">
    
    <bean id="contextAware" class="ContextAwareDemo"/>


</beans>

File: Main.java

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {
  public static void main(String[] args) throws Exception {
    ApplicationContext ctx = new ClassPathXmlApplicationContext(
        "context.xml");

    ContextAwareDemo demo = (ContextAwareDemo) ctx.getBean("contextAware");
    demo.displayAppContext();
  }

}

class ContextAwareDemo implements ApplicationContextAware {
  private ApplicationContext ctx;

  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    ctx = applicationContext;
  }

  public static void main(String[] args) {

  }

  public void displayAppContext() {
    System.out.println(ctx);
  }

}

28.2.ApplicationContext
	28.2.1.	ApplicationContext component scan
	28.2.2.	Component Filter Assignable
	28.2.3.	Search By Base Package
	28.2.4.	Implements ApplicationListener
	28.2.5.	Implements ApplicationEvent Publisher Aware
	28.2.6.	Filter By Annotation
	28.2.7.	ApplicationContext Aware
	28.2.8.	ApplicationContext And BeanFactory PostProcessor