usersmgrimpl.java

基于SSH的实现用户注册与登入功能。非常适合SSH初学者的入门。其中的设计模式可以应用到任何项目中。

package com.yuanchung.test.service.users.impl;
import com.yuanchung.test.dao.users.UsersDao;
import com.yuanchung.test.service.users.usersMgr;
import com.yuanchung.test.exception.myException;
import com.yuanchung.test.util.CONSTANTS;
import com.yuanchung.test.model.users.*;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.hibernate.HibernateException;

public class usersMgrImpl implements usersMgr {

		private UsersDao userDAO;

		public UsersDao getUserDAO() {
			return userDAO;
		}

		public void setUserDAO(UsersDao userDAO) {
			this.userDAO = userDAO;
		}


		public User findUserByNameAndPass(String username, String password) throws myException {
			try{
			return userDAO.getUser(username, password);}
			catch(myException e){
				throw new myException(e.getMessage());
			}
		}

		public void registerUser(String username, String password) throws myException  {
			System.out.println("aaaaaaaaaaaaaaaaa");
			if (null == username || null == password || "".equals(username) || "".equals(password)) {
				throw new myException(CONSTANTS.REGISTERNULLERROR);
			} else if (userDAO.getUser(username) == null) {
				userDAO.register(username, password);
				
			}else{
				throw new myException(CONSTANTS.REGISTERUSERNAMEERROR);
			}
				
		}
		
		public User findUserByName(String username) {
			return userDAO.getUser(username);
		}

	}