servicefinder.java

《基于Eclipse的开源框架技术与实战》[第10章]随书源码

package com.free.services;

import javax.servlet.http.HttpServletRequest;

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

import com.free.dao.ISpringHibernateDAO;
import com.free.web.common.ProjectConstants;
import com.free.web.common.SendMail;

/**
 * <p>Title: Eclipse Plugin Development</p>
 * <p>Description: Free download</p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: Free</p>
 * @author gan.shu.man
 * @version 1.0
 */

public class ServiceFinder {

	/**
	 * 
	 * @param httpRequest Http请求
	 * @return 返回Spring的应用程序上下文件
	 */
	private static ApplicationContext getContext(HttpServletRequest httpRequest) {
		return WebApplicationContextUtils
				.getRequiredWebApplicationContext(httpRequest.getSession()
						.getServletContext());
	}
	
	/**
	 * @return 返回SpringHibernateDAO的实现类
	 * */
	public static ISpringHibernateDAO getSpringHibernateDAO(HttpServletRequest httpRequest){
		return (ISpringHibernateDAO)getContext(httpRequest).getBean(ProjectConstants.SPRING_HIBERNATE_DAO);
	}
	
	/**
	 * @return 返回SendMail的实现类
	 * */
	public static SendMail getMailBean(HttpServletRequest httpRequest){
		return (SendMail)getContext(httpRequest).getBean(ProjectConstants.MAIL_BEAN);
	}
	
	
}