software copyright
This commit is contained in:
jiahong
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/**
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* 自然写互动课堂教学管理云平台软件 V1.0
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*
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* 设备管理控制器
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* 负责点阵笔、网关、终端设备的注册、绑定、状态查询等接口
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*/
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package com.writech.cloud.controller;
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import com.writech.cloud.WritechCloudApplication.ApiResponse;
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import com.writech.cloud.WritechCloudApplication.BusinessException;
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import com.writech.cloud.model.Device;
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import com.writech.cloud.service.DeviceService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.domain.Page;
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import org.springframework.data.domain.PageRequest;
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import org.springframework.web.bind.annotation.*;
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import javax.validation.Valid;
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import javax.validation.constraints.NotBlank;
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import java.time.LocalDateTime;
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import java.util.*;
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/**
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* 设备控制器 - /api/v1/device
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*
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* 管理互动课堂中涉及的所有智能硬件设备：
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* - 点阵笔（pen）：学生书写工具，通过BLE连接网关
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* - 网关设备（gateway）：教室中枢，管理多支笔的连接与数据转发
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* - 终端设备（terminal）：黑板、PC、电视、平板等显示终端
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* - 算力盒（edge_box）：教室端AI推理设备
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*/
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@RestController
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@RequestMapping("/api/v1/device")
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public class DeviceController {
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@Autowired
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private DeviceService deviceService;
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/**
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* 设备注册接口
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* POST /api/v1/device/register
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*
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* 将新设备注册到云平台，绑定至指定用户和学校
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* 注册时校验设备MAC地址唯一性和设备证书有效性
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*
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* @param request 注册请求（MAC地址、设备类型、序列号等）
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* @return 注册成功后的设备信息
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*/
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@PostMapping("/register")
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public ApiResponse<DeviceRegisterResponse> registerDevice(
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@Valid @RequestBody DeviceRegisterRequest request) {
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// 校验设备MAC地址格式
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if (!isValidMacAddress(request.getMacAddr())) {
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throw new BusinessException(400, "无效的MAC地址格式");
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}
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// 检查设备是否已注册
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Device existing = deviceService.findByMacAddr(request.getMacAddr());
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if (existing != null) {
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throw new BusinessException(409, "设备已注册，MAC地址: " + request.getMacAddr());
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}
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// 校验设备证书（X.509）
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boolean certValid = deviceService.validateDeviceCertificate(
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request.getMacAddr(), request.getDeviceCert());
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if (!certValid) {
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throw new BusinessException(403, "设备证书校验失败，拒绝注册");
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}
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// 创建设备记录
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Device device = new Device();
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device.setId(UUID.randomUUID().toString().replace("-", ""));
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device.setType(request.getDeviceType());
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device.setMacAddr(request.getMacAddr());
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device.setSerialNumber(request.getSerialNumber());
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device.setFirmwareVersion(request.getFirmwareVersion());
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device.setBindUserId(request.getUserId());
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device.setSchoolId(request.getSchoolId());
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device.setClassroomId(request.getClassroomId());
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device.setStatus(1); // 1=在线
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device.setRegisterTime(LocalDateTime.now());
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device.setLastHeartbeat(LocalDateTime.now());
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deviceService.save(device);
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// 返回注册结果
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DeviceRegisterResponse response = new DeviceRegisterResponse();
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response.setDeviceId(device.getId());
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response.setMacAddr(device.getMacAddr());
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response.setDeviceType(device.getType());
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response.setRegisteredAt(device.getRegisterTime());
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return ApiResponse.success(response);
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}
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/**
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* 设备绑定接口
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* POST /api/v1/device/bind
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*
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* 将已注册设备绑定至指定用户（教师/学生）
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* 一支笔只能绑定一个用户，一个用户可绑定多支笔
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*/
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@PostMapping("/bind")
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public ApiResponse<Void> bindDevice(@Valid @RequestBody DeviceBindRequest request) {
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Device device = deviceService.findById(request.getDeviceId());
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if (device == null) {
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throw new BusinessException(404, "设备不存在");
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}
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// 检查笔是否已被其他用户绑定
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if ("pen".equals(device.getType()) && device.getBindUserId() != null
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&& !device.getBindUserId().equals(request.getUserId())) {
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throw new BusinessException(409, "该笔已绑定其他用户，请先解绑");
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}
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deviceService.bindDevice(request.getDeviceId(), request.getUserId(),
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request.getClassroomId());
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return ApiResponse.success();
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}
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/**
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* 设备解绑接口
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* POST /api/v1/device/unbind
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*/
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@PostMapping("/unbind")
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public ApiResponse<Void> unbindDevice(@RequestBody DeviceUnbindRequest request) {
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deviceService.unbindDevice(request.getDeviceId());
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return ApiResponse.success();
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}
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/**
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* 查询设备列表
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* GET /api/v1/device/list
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*
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* 按学校/教室/设备类型/状态等条件分页查询设备
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*/
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@GetMapping("/list")
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public ApiResponse<Page<Device>> listDevices(
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@RequestParam(required = false) String schoolId,
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@RequestParam(required = false) String classroomId,
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@RequestParam(required = false) String deviceType,
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@RequestParam(required = false) Integer status,
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@RequestParam(defaultValue = "0") int page,
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@RequestParam(defaultValue = "20") int size) {
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Page<Device> devices = deviceService.queryDevices(
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schoolId, classroomId, deviceType, status,
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PageRequest.of(page, size));
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return ApiResponse.success(devices);
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}
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/**
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* 查询单个设备详情
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* GET /api/v1/device/{id}
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*/
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@GetMapping("/{id}")
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public ApiResponse<DeviceDetailResponse> getDevice(@PathVariable String id) {
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Device device = deviceService.findById(id);
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if (device == null) {
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throw new BusinessException(404, "设备不存在");
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}
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DeviceDetailResponse detail = new DeviceDetailResponse();
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detail.setDeviceId(device.getId());
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detail.setType(device.getType());
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detail.setMacAddr(device.getMacAddr());
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detail.setSerialNumber(device.getSerialNumber());
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detail.setFirmwareVersion(device.getFirmwareVersion());
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detail.setStatus(device.getStatus());
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detail.setBindUserId(device.getBindUserId());
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detail.setSchoolId(device.getSchoolId());
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detail.setClassroomId(device.getClassroomId());
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detail.setBatteryLevel(device.getBatteryLevel());
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detail.setLastHeartbeat(device.getLastHeartbeat());
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detail.setRegisterTime(device.getRegisterTime());
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return ApiResponse.success(detail);
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}
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/**
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* 设备心跳上报接口
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* POST /api/v1/device/heartbeat
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*
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* 设备定期上报在线状态、电量、连接笔数等信息
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* 网关设备每30秒上报一次，笔设备每5分钟上报一次
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*/
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@PostMapping("/heartbeat")
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public ApiResponse<Void> heartbeat(@Valid @RequestBody HeartbeatRequest request) {
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Device device = deviceService.findById(request.getDeviceId());
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if (device == null) {
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throw new BusinessException(404, "设备不存在");
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}
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// 更新设备状态
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device.setStatus(1); // 在线
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device.setLastHeartbeat(LocalDateTime.now());
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device.setBatteryLevel(request.getBatteryLevel());
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if (request.getConnectedPenCount() != null) {
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device.setConnectedPenCount(request.getConnectedPenCount());
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}
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if (request.getCpuUsage() != null) {
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device.setCpuUsage(request.getCpuUsage());
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}
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if (request.getMemoryUsage() != null) {
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device.setMemoryUsage(request.getMemoryUsage());
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}
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deviceService.updateHeartbeat(device);
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return ApiResponse.success();
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}
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/**
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* 批量查询教室设备拓扑
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* GET /api/v1/device/topology/{classroomId}
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*
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* 返回指定教室中所有设备的连接拓扑关系
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* 包括网关、笔、算力盒、黑板等设备的层级关系
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*/
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@GetMapping("/topology/{classroomId}")
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public ApiResponse<ClassroomTopology> getTopology(@PathVariable String classroomId) {
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ClassroomTopology topology = deviceService.buildClassroomTopology(classroomId);
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return ApiResponse.success(topology);
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}
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// ==================== 内部方法 ====================
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/** MAC地址格式校验（支持 XX:XX:XX:XX:XX:XX 和 XX-XX-XX-XX-XX-XX） */
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private boolean isValidMacAddress(String mac) {
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if (mac == null) return false;
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return mac.matches("^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$");
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}
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// ==================== DTO 定义 ====================
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/** 设备注册请求 */
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public static class DeviceRegisterRequest {
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@NotBlank(message = "设备类型不能为空")
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private String deviceType; // pen/gateway/terminal/edge_box
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@NotBlank(message = "MAC地址不能为空")
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private String macAddr;
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private String serialNumber;
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private String firmwareVersion;
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private String userId;
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private String schoolId;
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private String classroomId;
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private String deviceCert; // X.509设备证书
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public String getDeviceType() { return deviceType; }
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public void setDeviceType(String t) { this.deviceType = t; }
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public String getMacAddr() { return macAddr; }
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public void setMacAddr(String m) { this.macAddr = m; }
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public String getSerialNumber() { return serialNumber; }
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public void setSerialNumber(String s) { this.serialNumber = s; }
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public String getFirmwareVersion() { return firmwareVersion; }
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public void setFirmwareVersion(String v) { this.firmwareVersion = v; }
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public String getUserId() { return userId; }
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public void setUserId(String id) { this.userId = id; }
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public String getSchoolId() { return schoolId; }
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public void setSchoolId(String id) { this.schoolId = id; }
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public String getClassroomId() { return classroomId; }
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public void setClassroomId(String id) { this.classroomId = id; }
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public String getDeviceCert() { return deviceCert; }
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public void setDeviceCert(String c) { this.deviceCert = c; }
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}
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/** 设备注册响应 */
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public static class DeviceRegisterResponse {
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private String deviceId;
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private String macAddr;
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private String deviceType;
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private LocalDateTime registeredAt;
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public String getDeviceId() { return deviceId; }
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public void setDeviceId(String id) { this.deviceId = id; }
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public String getMacAddr() { return macAddr; }
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public void setMacAddr(String m) { this.macAddr = m; }
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public String getDeviceType() { return deviceType; }
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public void setDeviceType(String t) { this.deviceType = t; }
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public LocalDateTime getRegisteredAt() { return registeredAt; }
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public void setRegisteredAt(LocalDateTime t) { this.registeredAt = t; }
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}
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/** 设备绑定请求 */
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public static class DeviceBindRequest {
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@NotBlank private String deviceId;
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@NotBlank private String userId;
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private String classroomId;
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public String getDeviceId() { return deviceId; }
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public void setDeviceId(String id) { this.deviceId = id; }
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public String getUserId() { return userId; }
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public void setUserId(String id) { this.userId = id; }
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public String getClassroomId() { return classroomId; }
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public void setClassroomId(String id) { this.classroomId = id; }
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}
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/** 设备解绑请求 */
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public static class DeviceUnbindRequest {
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private String deviceId;
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public String getDeviceId() { return deviceId; }
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public void setDeviceId(String id) { this.deviceId = id; }
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}
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/** 心跳请求 */
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public static class HeartbeatRequest {
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@NotBlank private String deviceId;
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private Integer batteryLevel;
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private Integer connectedPenCount;
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private Double cpuUsage;
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private Double memoryUsage;
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public String getDeviceId() { return deviceId; }
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public void setDeviceId(String id) { this.deviceId = id; }
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public Integer getBatteryLevel() { return batteryLevel; }
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public void setBatteryLevel(Integer l) { this.batteryLevel = l; }
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public Integer getConnectedPenCount() { return connectedPenCount; }
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public void setConnectedPenCount(Integer c) { this.connectedPenCount = c; }
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public Double getCpuUsage() { return cpuUsage; }
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public void setCpuUsage(Double u) { this.cpuUsage = u; }
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public Double getMemoryUsage() { return memoryUsage; }
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public void setMemoryUsage(Double u) { this.memoryUsage = u; }
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}
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/** 设备详情响应 */
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public static class DeviceDetailResponse {
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private String deviceId;
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private String type;
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private String macAddr;
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private String serialNumber;
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private String firmwareVersion;
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private int status;
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private String bindUserId;
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private String schoolId;
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private String classroomId;
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private Integer batteryLevel;
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private LocalDateTime lastHeartbeat;
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private LocalDateTime registerTime;
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public String getDeviceId() { return deviceId; }
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public void setDeviceId(String id) { this.deviceId = id; }
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public String getType() { return type; }
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public void setType(String t) { this.type = t; }
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public String getMacAddr() { return macAddr; }
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public void setMacAddr(String m) { this.macAddr = m; }
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public String getSerialNumber() { return serialNumber; }
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public void setSerialNumber(String s) { this.serialNumber = s; }
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public String getFirmwareVersion() { return firmwareVersion; }
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public void setFirmwareVersion(String v) { this.firmwareVersion = v; }
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public int getStatus() { return status; }
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public void setStatus(int s) { this.status = s; }
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public String getBindUserId() { return bindUserId; }
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public void setBindUserId(String id) { this.bindUserId = id; }
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public String getSchoolId() { return schoolId; }
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public void setSchoolId(String id) { this.schoolId = id; }
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public String getClassroomId() { return classroomId; }
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public void setClassroomId(String id) { this.classroomId = id; }
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public Integer getBatteryLevel() { return batteryLevel; }
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public void setBatteryLevel(Integer l) { this.batteryLevel = l; }
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public LocalDateTime getLastHeartbeat() { return lastHeartbeat; }
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public void setLastHeartbeat(LocalDateTime t) { this.lastHeartbeat = t; }
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public LocalDateTime getRegisterTime() { return registerTime; }
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public void setRegisterTime(LocalDateTime t) { this.registerTime = t; }
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}
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/** 教室拓扑结构 */
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public static class ClassroomTopology {
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private String classroomId;
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private String classroomName;
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private List<Device> gateways;
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private List<Device> edgeBoxes;
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private List<Device> terminals;
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private List<Device> pens;
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private int totalDeviceCount;
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public String getClassroomId() { return classroomId; }
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public void setClassroomId(String id) { this.classroomId = id; }
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public String getClassroomName() { return classroomName; }
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public void setClassroomName(String n) { this.classroomName = n; }
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public List<Device> getGateways() { return gateways; }
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public void setGateways(List<Device> g) { this.gateways = g; }
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public List<Device> getEdgeBoxes() { return edgeBoxes; }
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public void setEdgeBoxes(List<Device> e) { this.edgeBoxes = e; }
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public List<Device> getTerminals() { return terminals; }
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public void setTerminals(List<Device> t) { this.terminals = t; }
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public List<Device> getPens() { return pens; }
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public void setPens(List<Device> p) { this.pens = p; }
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public int getTotalDeviceCount() { return totalDeviceCount; }
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public void setTotalDeviceCount(int c) { this.totalDeviceCount = c; }
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}
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}
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