src/edu/school/dao/TeacherDao.java

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package edu.school.dao;

import edu.school.entity.*;

import java.util.List;

public interface TeacherDao {

    //新增班主任
    public int addTeacher(Teacher teacher);
    //根据编号查询
    public Teacher queryByTno(String tno);
    //统计数量
    public int queryCount();
    public List<Teacher> findAllByPage(PageTool pageTool);//分页
    //根据id删除班主任
    public int delete(Integer id);
    //条件查询
    public List<Teacher> findByTeacher(String tno, String realname);
    //根据班主任账号和密码来登录
    public Teacher queryByTnoAndPwd(String tno, String pwd);
    //根据id查询
    public Teacher query(Integer id);
    //修改
    public int update(Teacher teacher);
}