usernamefilter.java

更不用说了,我培训期间的资料,包括每天老师的例子.文件主要包括,HIBERNATE的配置,一对多,多对多.别的就是些平时的自己作业.XML方面也有.我感觉很适合,想学习这方面的却没有适合练习的人,毕竟

package server.business.filter;
import server.model.*;
import server.dao.*;
import java.util.Map;
public class UserNameFilter extends Filter {
	public String doFilter(String userName,String password1,String password2,String name,String classNumber,String email,String phone){
		UserDAOFactory factory=UserDAOFactory.newInstance();
		UserDAO dao=factory.getUserDAO();
		Map<String,User> users=dao.getAllUsers();
		if (users.containsKey(userName)){
			return "该用户已存在";
		}
		else{
			return super.doFilter(userName,password1,password2,name,classNumber,email,phone);
		}
	}
}