daofactory.java

这是本人做的投票系统的源码

package cn.hxex.vote.util;

import cn.hxex.vote.dao.IVoteDAO;

public class DAOFactory {
	
	public static IVoteDAO getVoteDAO() {
		return (IVoteDAO) getInstance("cn.hxex.vote.dao.hibernate.VoteDAO");
	}
	
	public static Object getInstance(String className) {
		try {
			Class cls = Class.forName(className);
			return cls.newInstance();
		}
		catch (ClassNotFoundException e) {
			e.printStackTrace();
			return null;
		}
		catch (InstantiationException e) {
			e.printStackTrace();
			return null;
		}
		catch (IllegalAccessException e) {
			e.printStackTrace();
			return null;
		}
	}
}