messageservice.java

java学习的必要的资料,servlet的说明很好

package com.estore.struts.service;

import java.util.Collection;
import java.util.Iterator;

import com.estore.struts.Globals;
import com.estore.struts.dao.MessageDao;
import com.estore.struts.entity.Message;
import com.estore.struts.utils.DaoFactory;

public class MessageService {
	private MessageDao messageDao = (MessageDao) DaoFactory.getInstance().getDao(
			Globals.MESSAGE_DAO);
	
	public Collection findAll()throws Exception{
		Collection admins=messageDao.findAll();
		return admins;
	}
	
	public Message findMessageById (Integer MessageId)throws Exception{
		Message admin=messageDao.findById(MessageId);		
		return admin;
	}
	
	public void addMessage(Message message)throws Exception{
		messageDao.addMessage(message);
	}
	
	public void remove(Message message)throws Exception{
		messageDao.deleteMessage(message);
	}
	
	public void modify(Message message)throws Exception{
		messageDao.modify(message);
	}
}