abstractservlet.java

ajax工程的小例子

/**
 * Created on Jul 17, 2007
 * By Maxwell C. Dong
 * 
 * Copyright 2006-2007 the original author or authors.
 */
package com.tarena.ajax.servlet;

import javax.servlet.http.HttpServlet;

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

/**
 * @author maxwell conrad
 * 
 */
public class AbstractServlet extends HttpServlet {

	private WebApplicationContext wac;

	public Object getService(String beanName) {
		if (wac == null) {
			wac = WebApplicationContextUtils
					.getRequiredWebApplicationContext(this.getServletContext());
		}
		return wac.getBean(beanName);
	}

}