userserviceimpl.java

一个ssh结构组成 的BS开发

package cn.hxex.library.service.impl;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import cn.hxex.library.dao.UserDao;
import cn.hxex.library.exception.LibraryException;
import cn.hxex.library.model.User;
import cn.hxex.library.service.UserService;

/**
 * UserService的实现
 * 
 * @author galaxy
 *
 */
public class UserServiceImpl implements UserService {
	//	the logger for this class
	private Log logger = LogFactory.getLog(this.getClass());

	private UserDao userDao;

	/**
	 * @return Returns the userDao.
	 */
	public UserDao getUserDao() {
		return userDao;
	}

	/**
	 * @param userDao The userDao to set.
	 */
	public void setUserDao(UserDao userDao) {
		this.userDao = userDao;
	}

	public User login(String username, String password) throws LibraryException {
		User user = this.getUserDao().getUser(username);
		if (user == null)
			throw LibraryException.getUsernameNotExistException();

		if (!user.getPassword().equals(password))
			throw LibraryException.getIncorrectPasswordException();

		return user;
	}

}