examOnline/src/com/service/TeacherServiceImpl.java

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package com.service;

import com.dao.TeacherDao;
import com.dao.TeacherDaoImpl;
import com.entity.Teacher;

public class TeacherServiceImpl implements TeacherService{
	//持有dao层
	private TeacherDao teacherDao = new TeacherDaoImpl();
	/**
	 * 判断是否是合法的老师，账号密码是否正确，返回boolean
	 */
	@Override
	public boolean allowLogin(String teacherID, String password) {
		Teacher teacher = teacherDao.findByTeacherID(teacherID);
		if(teacher==null){
			//如果没有查询到记录的话
			return false;
		}else{
			if(teacher.getPassword().equals(password)){
				//如果查询的记录的密码和传入的密码一致的话
				return true;
			}else{
				return false;
			}
		}
	}
	@Override
	public Teacher getTeacherInfo(String teacherID) {
		return teacherDao.findByTeacherID(teacherID);
	}
}