forumfactorychaxun.java

贯穿案例JSP+JavaBean+Servlet网上订餐系统.希望大家下载下来研究

package com.restrant.dao;


public class ForumFactoryChaxun extends ForumFactory {

	private static FoodDao foodDao = null;
	private static UserDao userDao = null;
	private static OderDao oderDao = null;
	@Override
	public FoodDao getFood(String type) {
		try {
			foodDao = (FoodDao) Class.forName("com.restrant.dao." + type).newInstance();
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return foodDao;
	}

	public UserDao getUser(String type) {

		try {
			userDao = (UserDao) Class.forName("com.restrant.dao." + type).newInstance();

		} catch (Exception e) {
			e.printStackTrace();
		}
		return userDao;
	}
	public OderDao addFoodOder(String type) {
		try {
			oderDao = (OderDao) Class.forName("com.restrant.dao." + type).newInstance();
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return oderDao;
	}
	
}