spring 监听器：

监听容器事件：

package com.sharp.mvc.listener;

import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextClosedEvent;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.ContextStartedEvent;
import org.springframework.context.event.ContextStoppedEvent;

public class ContextStartListener implements ApplicationListener<ApplicationEvent>
{

	@Override
	public void onApplicationEvent(ApplicationEvent arg0)
	{
		if(arg0 instanceof ContextStartedEvent)
		{
			System.out.println("容器开始");
		}else if(arg0 instanceof ContextRefreshedEvent)
		{
			System.out.println("容器刷新");
		}else if(arg0 instanceof ContextStoppedEvent)
		{
			System.out.println("容器暂停");
		}else if(arg0 instanceof ContextClosedEvent)
		{
			System.out.println("容器关闭");
		}
	}

}

监听自定义事件：

事件：

package com.sharp.cxf.listener;

import org.springframework.context.ApplicationContext;
import org.springframework.context.event.ApplicationContextEvent;

public class EmailEvent extends ApplicationContextEvent
{
	private String to;
	public EmailEvent(ApplicationContext source, String to)
	{
		super(source);
		this.to = to;
	}
	
	public String getTo(){
		return this.to;
	}
}

事件监听器：

package com.sharp.cxf.listener;

import org.springframework.context.ApplicationListener;

public class EmailListener implements ApplicationListener<EmailEvent>
{

	@Override
	public void onApplicationEvent(EmailEvent event)
	{
		System.out.println("已成功发送一封邮件"+ event.getTo());
	}
}

事件源：

package com.sharp.cxf.listener;

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

public class EventSource implements ApplicationContextAware
{
	private ApplicationContext context;
	@Override
	public void setApplicationContext(ApplicationContext context)
			throws BeansException
	{
		System.out.println("设值中……");
		this.context = context;
		System.out.println(context);
	}
	
	public void sendMail(){
		System.out.println("正在发送邮件");
		System.out.println(context);
		EmailEvent event = new EmailEvent(context, "发送给xiao peng");
		context.publishEvent(event);
	}
}