Personnel management system --第三天

1.功能实现：

部门管理
员工管理
登录及个人中心
日志处理

　　部门管理：部门的增删改查操作。

　　实现步骤：

实体类
Dao接口和sql映射文件
service接口和实现类
控制器
页面

//实体类，与数据库中的属性相对应
public class Department {
    private Integer id;
    private String name;
    private String address;

    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
}

//Dao层接口
@Repository("departmentDao")
public interface DepartmentDao {
    void insert(Department department);
    void delete(Integer id);
    void update(Department department);
    Department selectById(Integer id);
    List<Department> selectAll();
}

//映射文件
<?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.DepartmentDao">
    <resultMap id="resultMap" type="Department">
        <id property="id" column="id" javaType="Integer"/>
        <result property="name" column="name" javaType="String"/>
        <result property="address" column="address" javaType="String"/>
    </resultMap>
    <insert id="insert" parameterType="Department" useGeneratedKeys="true">
        insert into department(name,address) values(#{name},#{address})
    </insert>
    <delete id="delete" parameterType="Integer">
        delete from department where id=#{id}
    </delete>
    <update id="update" parameterType="Department">
        update department set name=#{name},address=#{address} where id=#{id}
    </update>
    <select id="selectById" parameterType="Integer" resultMap="resultMap">
        select * from department where id=#{id}
    </select>
    <select id="selectAll" resultMap="resultMap">
        select * from department
    </select>
</mapper>

//service层接口以及实现类
public interface DepartmentService {
    void add(Department department);
    void remove(Integer id);
    void edit(Department department);
    Department get(Integer id);
    List<Department> getAll();
}
@Service("departmentService")
public class DepartmentServiceImpl implements DepartmentService {
    @Autowired
    private DepartmentDao departmentDao;
    public void add(Department department) {
        departmentDao.insert(department);
    }
    public void remove(Integer id) {
        departmentDao.delete(id);
    }
    public void edit(Department department) {
        departmentDao.update(department);
    }
    public Department get(Integer id) {
        return departmentDao.selectById(id);
    }
    public List<Department> getAll() {
        return departmentDao.selectAll();
    }
}

//控制层
@Controller("departmentController")
public class DepartmentController {
@Autowired
    private DepartmentService departmentService;
    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<Department> departments=departmentService.getAll();
        request.setAttribute("departments",departments);
        request.getRequestDispatcher("../department_list.jsp").forward(request,response);
    }
}

成功访问到页面：

注意事项：

在resource目录下新建多级目录时，因该com/imooc/sm/xx ，用的"/",而不是“.”。

Personnel management system --第三天

猜你喜欢