新闻发布项目——业务逻辑层（UserServiceImpl）

package bdqn.newsManageServlet.Service.Impl;

import bdqn.newsManageServlet.Dao.UserDao;
import bdqn.newsManageServlet.Dao.Impl.UserDaoImpl;
import bdqn.newsManageServlet.Service.UserService;
import bdqn.newsManageServlet.entity.User;

public class UserServiceImpl implements UserService {

	UserDao userdao=new UserDaoImpl();
	public User getLoginUser(String uName, String pwd, String msg) {
		User user=userdao.getLoginUser(uName);
		if(user==null){
			msg="用户名错误";
		}else{
			if(!user.getUserPassword().equals(pwd)){
				msg="密码错误";	
			}
		}
			msg="";
		
		return user;
	}

}