服务端/course_mgmt/src/com/common/dao/impl/TeacherDaoImpl.java

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package com.common.dao.impl;

import java.util.List;

import com.common.dao.AdminDAO;
import com.common.dao.TeacherDAO;
import com.common.model.Admin;
import com.common.model.Teacher;

public class TeacherDaoImpl extends BaseDAO implements TeacherDAO {

	@Override
	public Teacher login(String username, String password) {
		StringBuffer sb = new StringBuffer("FROM Teacher WHERE tea_id = '")
				.append(username).append("' and password = '").append(password)
				.append("'");

		List<Teacher> lst = findByHQL(sb.toString());
		if (lst.size() > 0) {
			return lst.get(0);
		} else {
			return null;
		}
	}

	@Override
	public boolean reg(Teacher user) {
		// TODO Auto-generated method stub
		return this.saveOrUpdate(user);
	}

	@Override
	public List<Teacher> list() {
		StringBuffer sb = new StringBuffer("FROM Teacher");

		List<Teacher> lst = findByHQL(sb.toString());

		return lst;
	}

	@Override
	public boolean del(Teacher user) {
		// TODO Auto-generated method stub
		return deleteById(Teacher.class, user.getId());
	}

	@Override
	public Teacher load(int id) {
		// TODO Auto-generated method stub
		return get(Teacher.class, id);
	}

	@Override
	public boolean update(Teacher user) {
		StringBuffer sb = new StringBuffer("update Teacher set password ='")
				.append(user.getPassword()).append("',birth='")
				.append(user.getBirth()).append("',tea_sex='")
				.append(user.getTea_sex()).append("' where id =")
				.append(user.getId());
		try {