Personnel management system --第五天

员工信息的增删改查

•  实体类

public class Staff {
    private Integer id;
    private String account;
    private String password;
    private String status;
    private Integer did;
    private String name;
    private String sex;
    private String idNumber;
    private Date workTime;
    private Date leaveTime;
    private Date bornTime;
    private String info;
    private Department department;
    setter/getter()方法
}

• dao层与实现

@Repository("staffDao")
public interface StaffDao {
    public void insert(Staff staff);
    public void delete(Integer id);
    public void update(Staff staff);
    public Staff selectById(Integer id);
    public List<Staff> selectAll();
}

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.4//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="per.lc.sms.dao.StaffDao">
    <resultMap id="resultMap" type="Staff">
        <id property="id" column="id" javaType="Integer"/>
        <result property="account" column="account" javaType="String"/>
        <result property="password" column="password" javaType="String"/>
        <result property="status" column="status" javaType="String"/>
        <result property="did" column="did" javaType="Integer"/>
        <result property="name" column="name" javaType="String"/>
        <result property="sex" column="sex" javaType="String"/>
        <result property="idNumber" column="id_number" javaType="String"/>
        <result property="workTime" column="work_time" javaType="Date"/>
        <result property="leaveTime" column="leave_time" javaType="Date"/>
        <result property="bornTime" column="born_date" javaType="Date"/>
        <result property="info" column="info" javaType="String"/>
        <association property="department" column="did" javaType="Department" select="per.lc.sms.dao.DepartmentDao.selectById"/>   //***在员工的显示列表上只能看到一个代表部门的编号，通过<association>将编号与部门对象连接起来
    </resultMap>
    <insert id="insert" parameterType="Staff" useGeneratedKeys="true">
        insert into staff (account,password,status,did,name,sex,id_number,work_time,leave_time,born_date,info)
        values (#{account},#{password},#{status},#{did},#{name},#{sex},#{idNumber},#{workTime},#{leaveTime},#{bornTime},#{info})
    </insert>
    <delete id="delete" parameterType="Integer">
        delete from staff where id=#{id}
    </delete>
    <update id="update" parameterType="Staff">
        update staff set account=#{account},password=#{password},status=#{status},did=#{did},name=#{name},sex=#{sex},id_number=#{idNumber}
        work_time=#{workTime},leave_time=#{leaveTime},born_date=#{bornTime},info=#{info} where id=#{id}
    </update>
    <select id="selectById" parameterType="Integer" resultMap="resultMap">
        select * from staff where id=#{id}
    </select>
    <select id="selectAll" resultMap="resultMap">
        select * from staff
    </select>
</mapper>

• 业务层接口与实现

public interface StaffService {
    public void add(Staff staff);
    public void remove(Integer id);
    public void edit(Staff staff);
    public Staff get(Integer id);
    public List<Staff> getAll();
}

@Service("staffService")
public class StaffServiceImp implements StaffService {
    @Autowired
    private StaffDao staffDao;

    public void add(Staff staff) {
        staff.setPassword("123456"); //这几个信息不需要在页面显示，直接设置好。相当与默认的信息
        staff.setWorkTime(new Date());
        staff.setStatus("正常");
         staffDao.insert(staff);
    }
    public void remove(Integer id) {
        staffDao.delete(id);
    }
    public void edit(Staff staff) {
        staffDao.update(staff);
    }
    public Staff get(Integer id) {
        return staffDao.selectById(id);
    }
    public List<Staff> getAll() {
        return staffDao.selectAll();
    }
}

控制层：仅显示所有员工的信息

@Controller("staffController")
public class StaffController {
    @Autowired
    private StaffService staffService;
    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<Staff> staffList=staffService.getAll();
        request.setAttribute("staffList",staffList);
        request.getRequestDispatcher("../staff_list.jsp").forward(request,response);
    }