六、处理Word文件的实用操作
2026/1/16 17:33:29
以下是一套基于Java的24小时无人洗车扫码自助系统源码方案,涵盖系统架构、核心功能、技术实现及安全保障等方面:
系统采用微服务架构,基于Spring Boot + Spring Cloud Alibaba构建,实现服务注册与发现、负载均衡、熔断降级等功能。系统主要分为以下几个层次:
java
public class ResourceAllocator { public Device assignDevice(UserLocation location, ServiceType type) { List<Device> availableDevices = deviceRepository.findByStatusAndType("IDLE", type); return availableDevices.stream() .min(Comparator.comparingDouble(d -> calculateDistance(d.getLocation(), location))) .orElseThrow(() -> new BusinessException("无可用设备")); } }java
MqttClient client = new MqttClient("tcp://broker.emqx.com:1883", MqttClient.generateClientId()); client.connect(); // 订阅设备状态主题 client.subscribe("/device/carwash/{deviceId}/status", (topic, message) -> { String payload = new String(message.getPayload()); JSONObject status = JSONObject.parseObject(payload); // 更新设备状态至数据库 deviceService.updateStatus(status.getString("deviceId"), status.getString("phase")); }); // 发送控制指令(如启动洗车) JSONObject command = new JSONObject(); command.put("action", "start"); command.put("orderId", "123456"); client.publish("/device/carwash/{deviceId}/command", new MqttMessage(command.toJSONString().getBytes()));java
WXPay wxPay = new WXPay(new WXPayConfigImpl(), new WXPayConstants.SignType().HMACSHA256); Map<String, String> data = new HashMap<>(); data.put("body", "无人洗车服务"); data.put("out_trade_no", orderId); data.put("total_fee", String.valueOf(1500)); // 单位:分 data.put("spbill_create_ip", "127.0.0.1"); data.put("notify_url", "https://yourdomain.com/api/pay/notify"); data.put("trade_type", "NATIVE"); // 扫码支付 Map<String, String> resp = wxPay.unifiedOrder(data); if ("SUCCESS".equals(resp.get("return_code"))) { String codeUrl = resp.get("code_url"); // 生成支付二维码 // 返回codeUrl至小程序 }