userdaofactory.java

尚学堂Java148班的spring的所有源码

package com.bjsxt.spring.dao;

public class UserDaoFactory {
	
	private static UserDaoFactory instance = new UserDaoFactory();
	
	private UserDaoFactory() {
		//我们可以读取配置文件，通过反射进行装载
	}
	
	public static UserDaoFactory getInstance() {
		return instance;
	}
	
	public UserDao createUserDao() {
		return new UserDao4MySqlImpl();
	}
}