微电网核心技术解析:从电力电子控制到多源协同优化
2026/4/16 15:01:11
随着移动互联网的普及,社区治理逐渐向数字化、智能化转型。传统社区事件处理依赖人工登记、电话反馈等方式,存在效率低、信息传递滞后、处理流程不透明等问题。微信小程序凭借其免安装、高普及率的特点,为社区事件处理提供了便捷的移动端入口。Spring Boot作为高效的后端框架,能够快速构建稳定的事件处理系统,满足实时性、可扩展性需求。
通过微信小程序与Spring Boot的结合,该系统可成为智慧社区建设的基础模块,推动基层治理从“被动响应”转向“主动服务”。
后端技术栈(SpringBoot)
微信小程序技术栈
辅助工具与技术
微信小程序端
wx.login获取code,后端兑换openid并签发JWTwx.uploadFile接口)SpringBoot后端
@PreAuthorize控制接口访问// SpringBoot事件提交接口 @PostMapping("/api/event/submit") @PreAuthorize("hasRole('USER')") public Result submitEvent(@RequestBody EventDTO dto, @RequestHeader("Authorization") String token) { // 解析Token获取用户ID,校验权限后入库 return Result.success(eventService.createEvent(dto)); }// 小程序端调用示例 wx.request({ url: 'https://api.example.com/api/event/submit', method: 'POST', data: { title: "水管破裂", location: "3栋2单元" }, header: { 'Authorization': 'Bearer ' + token } })微信小程序端通过wx.requestAPI与SpringBoot后端进行HTTP通信。后端接口需遵循RESTful风格,返回JSON格式数据。
小程序端请求示例:
wx.request({ url: 'https://yourdomain.com/api/events', method: 'POST', data: { title: '水管漏水', location: '3栋2单元', description: '楼道水管破裂', images: ['base64编码图片'] }, success(res) { console.log(res.data) } })SpringBoot控制器层核心代码:
@RestController @RequestMapping("/api/events") public class EventController { @Autowired private EventService eventService; @PostMapping public ResponseEntity<Result> reportEvent( @RequestBody EventDTO eventDTO, @RequestHeader("X-WX-OPENID") String openid) { Event event = convertToEntity(eventDTO); event.setReporterOpenid(openid); Event savedEvent = eventService.saveEvent(event); return ResponseEntity.ok(Result.success(savedEvent)); } private Event convertToEntity(EventDTO dto) { // DTO转Entity逻辑 } }事件状态转换核心逻辑:
@Service public class EventServiceImpl implements EventService { @Transactional public void processEvent(Long eventId, String action) { Event event = eventRepository.findById(eventId) .orElseThrow(() -> new BusinessException("事件不存在")); switch (event.getStatus()) { case PENDING: if ("ACCEPT".equals(action)) { event.setStatus(Status.PROCESSING); event.setProcessor(getCurrentUser()); } break; case PROCESSING: if ("COMPLETE".equals(action)) { event.setStatus(Status.VERIFYING); } break; // 其他状态转换... } eventRepository.save(event); } }使用微信模板消息通知相关人员:
public class WechatNotifyService { @Value("${wechat.template-id}") private String templateId; public void sendProcessNotify(String openid, Event event) { String accessToken = wechatAuthService.getAccessToken(); Map<String, Object> data = new LinkedHashMap<>(); data.put("first", Map.of("value", "您的事件已被受理")); data.put("keyword1", Map.of("value", event.getTitle())); data.put("keyword2", Map.of("value", event.getStatus().getDesc())); RestTemplate rest = new RestTemplate(); String url = String.format( "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=%s", accessToken); Map<String, Object> request = Map.of( "touser", openid, "template_id", templateId, "data", data ); rest.postForObject(url, request, String.class); } }SpringBoot处理图片上传:
@PostMapping("/upload") public Result uploadImage( @RequestParam("file") MultipartFile file, @RequestHeader("X-WX-OPENID") String openid) { if (file.isEmpty()) { throw new BusinessException("文件不能为空"); } String fileName = StorageService.generateFileName(file); String fileUrl = storageService.upload(file.getInputStream(), fileName); return Result.success(Map.of("url", fileUrl)); }基于OpenID的权限过滤:
@Repository public interface EventRepository extends JpaRepository<Event, Long> { @Query("SELECT e FROM Event e WHERE " + "e.reporterOpenid = :openid OR " + "e.processorOpenid = :openid OR " + ":role = 'ADMIN'") List<Event> findVisibleEvents( @Param("openid") String openid, @Param("role") String role); }WebSocket实现状态变更通知:
@Controller public class EventWebSocketHandler { @OnMessage public void handleMessage(Session session, String eventId) { Event event = eventService.getEvent(eventId); session.getAsyncRemote().sendText( JSON.toJSONString(event)); } @Autowired private EventService eventService; }使用Redis缓存热点数据:
@Service @CacheConfig(cacheNames = "events") public class EventCacheService { @Cacheable(key = "#eventId") public Event getEventById(Long eventId) { return eventRepository.findById(eventId).orElse(null); } @CacheEvict(key = "#event.id") public void updateEvent(Event event) { eventRepository.save(event); } }