web容器中获取spring容器实例

package com.sqc.base;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

//web容器启动监听器
public class InitListener implements ServletContextListener {

@Override
public void contextDestroyed(ServletContextEvent arg0) {

}

/**
* 为保证只有一个spring容器，所以在web容器初始化方法中通过spring提供的工具类，获取spring容器实例
*/
@Override
public void contextInitialized(ServletContextEvent arg0) {
ApplicationContext ac=WebApplicationContextUtils.getWebApplicationContext(arg0.getServletContext());
}

}