web容器启动时，借助spring进行初始化操作

package com.net263.boss.util;

import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;

@SuppressWarnings("unchecked")
public class springInitial implements ApplicationListener {

@Override
public void onApplicationEvent(ApplicationEvent arg0) {
for(int i =0;i<10;i++) {
System.out.println("hello world");
}
}

}
1.实现 ApplicationListener借口
2.重写 onApplicationEvent方法
3.将该类配置到ApplicationContext中<bean id="springInitial" class="com.net263.boss.util.springInitial"/>