赵忠林
7faf588314
- 在application-prod.yml中将MQTT服务enabled设置为true - 引入StringRedisTemplate用于Redis分布式锁控制-重构GPS轨迹日志保存方法，增加Redis原子锁控制频率 -仅在GPS速度不为0时保存轨迹日志，避免无效数据- 使用Redis setIfAbsent实现2分钟内同一设备只保存一次日志 - 完善日志记录，增加设备、速度、经纬度等关键信息 -优化异常处理，记录具体设备号便于问题追踪
283 lines
9.2 KiB
Java
283 lines
9.2 KiB
Java
package com.gxwebsoft.hjm.service;
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import cn.hutool.core.date.DateUtil;
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import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.core.util.StrUtil;
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import com.alibaba.fastjson.support.geo.Point;
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import com.gxwebsoft.common.core.utils.JSONUtil;
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import com.gxwebsoft.common.core.utils.RedisUtil;
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import com.gxwebsoft.hjm.entity.Gps;
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import com.gxwebsoft.hjm.entity.HjmCar;
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import com.gxwebsoft.hjm.entity.HjmFence;
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import com.gxwebsoft.hjm.entity.HjmGpsLog;
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import com.gxwebsoft.hjm.service.impl.HjmCarServiceImpl;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.data.redis.core.StringRedisTemplate;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.time.Instant;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.concurrent.TimeUnit;
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/**
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* GPS消息处理器
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*
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* @author 科技小王子
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* @since 2025-07-02
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*/
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@Service
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public class GpsMessageProcessor {
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private static final Logger logger = LoggerFactory.getLogger(GpsMessageProcessor.class);
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@Resource
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private HjmCarService hjmCarService;
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@Resource
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private HjmGpsLogService hjmGpsLogService;
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@Resource
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private HjmFenceService hjmFenceService;
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@Resource
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private RedisUtil redisUtil;
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@Resource
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private StringRedisTemplate stringRedisTemplate;
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@Resource
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private HjmCarServiceImpl hjmCarServiceImpl;
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/**
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* 处理GPS消息
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*
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* @param payload 消息内容
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*/
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public void processGpsMessage(String payload) {
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try {
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logger.debug("开始处理GPS消息: {}", payload);
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Gps gps = JSONUtil.parseObject(payload, Gps.class);
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if (ObjectUtil.isEmpty(gps)) {
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logger.warn("GPS数据为空，跳过处理");
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return;
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}
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processGpsData(gps);
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} catch (Exception e) {
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logger.error("处理GPS数据失败: {}", payload, e);
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}
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}
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/**
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* 处理GPS数据
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*
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* @param gps GPS数据
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*/
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private void processGpsData(Gps gps) {
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try {
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String gpsNo = gps.getImei();
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if (StrUtil.isBlank(gpsNo)) {
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logger.warn("GPS设备编号为空，跳过处理");
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return;
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}
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// 详细记录GPS数据处理过程
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logger.info("处理GPS数据 - 设备编号: {}, Fixed: {}, 经度: {}, 纬度: {}, 速度: {}",
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gpsNo, gps.getFixed(), gps.getLng(), gps.getLat(), gps.getSpeed());
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HjmCar car = hjmCarService.getByGpsNo(gpsNo);
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if (car == null) {
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logger.warn("GPS设备编号: {} 在数据库中未找到对应车辆，请检查车辆配置", gpsNo);
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return;
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}
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logger.info("GPS设备编号: {} 对应车辆: {} (ID: {})", gpsNo, car.getCode(), car.getId());
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if (!gps.getFixed()) {
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logger.warn("GPS设备编号: {} 定位未固定(Fixed=false)，跳过处理", gpsNo);
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return;
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}
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// 更新车辆GPS定位信息
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updateCarLocation(car, gps);
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// 保存GPS轨迹日志
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saveGpsLog(car, gps);
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// 检查电子围栏
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checkFence(car, gps);
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} catch (Exception e) {
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logger.error("处理GPS数据时发生错误", e);
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}
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}
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/**
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* 更新车辆位置信息
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*/
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private void updateCarLocation(HjmCar car, Gps gps) {
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try {
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car.setLongitude(gps.getLng());
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car.setLatitude(gps.getLat());
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car.setSpeed(gps.getSpeed());
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car.setUpdateTime(LocalDateTime.ofInstant(Instant.ofEpochMilli(gps.getTime() * 1000), ZoneId.systemDefault()));
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car.setGpsNo(gps.getImei());
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if (hjmCarService.updateByGpsNo(car)) {
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logger.debug("更新车辆GPS定位信息成功: {}", car.getCode());
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// 保存GPS轨迹日志（通过Redis控制频率）
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saveGpsLogRecord(car, gps);
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} else {
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logger.warn("更新车辆GPS定位信息失败: {}", car.getCode());
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}
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} catch (Exception e) {
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logger.error("更新车辆位置信息失败", e);
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}
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}
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/**
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* 保存GPS轨迹日志记录
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* 使用Redis控制保存频率，同一GPS设备2分钟内只保存一次
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*/
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private void saveGpsLogRecord(HjmCar car, Gps gps) {
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try {
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// 只有速度不为0时才保存GPS轨迹
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if (gps.getSpeed().equals("0.000")) {
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logger.debug("GPS设备{}速度为0，跳过保存轨迹日志", gps.getImei());
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return;
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}
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// 构造Redis key，使用GPS设备编号作为key
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String redisKey = "gps_log:" + gps.getImei();
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// 使用Redis的setIfAbsent原子操作实现分布式锁
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// 只有key不存在时才设置成功，返回true；key已存在时返回false
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Boolean lockAcquired = stringRedisTemplate.opsForValue()
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.setIfAbsent(redisKey, "locked", 2, TimeUnit.MINUTES);
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if (Boolean.FALSE.equals(lockAcquired)) {
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// 获取锁失败，说明2分钟内已经保存过
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logger.debug("GPS设备{}在2分钟内已保存过轨迹日志，跳过本次保存", gps.getImei());
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return;
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}
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// 获取锁成功，执行保存操作
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HjmGpsLog log = new HjmGpsLog();
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log.setTenantId(10519);
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log.setCarId(car.getId());
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log.setGpsNo(gps.getImei());
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log.setLatitude(gps.getLat());
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log.setLongitude(gps.getLng());
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log.setDdmmyy(gps.getDdmmyy());
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log.setHhmmss(gps.getHhmmss());
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log.setSpeed(gps.getSpeed());
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// 保存数据库
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hjmGpsLogService.save(log);
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logger.info("保存GPS轨迹日志成功: 设备={}, 速度={}, 经度={}, 纬度={}",
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gps.getImei(), gps.getSpeed(), gps.getLng(), gps.getLat());
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} catch (Exception e) {
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logger.error("保存GPS轨迹日志失败: 设备={}", gps.getImei(), e);
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}
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}
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/**
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* 保存GPS日志（兼容原有方法）
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*/
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private void saveGpsLog(HjmCar car, Gps gps) {
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// 这里可以添加其他GPS日志相关的处理逻辑
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logger.debug("处理GPS日志: 车辆={}, GPS={}", car.getCode(), gps.getImei());
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}
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/**
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* 检查电子围栏
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*/
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private void checkFence(HjmCar car, Gps gps) {
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try {
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String gpsNo = gps.getImei();
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// 检查围栏缓存，避免频繁计算
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String inFenceKey = redisUtil.get("inFence:" + gpsNo);
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if (StrUtil.isNotBlank(inFenceKey)) {
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logger.debug("围栏检查缓存命中，跳过计算: {}", gpsNo);
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return;
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}
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// 设置围栏检查缓存（1天）
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redisUtil.set("inFence:" + gpsNo, "1", 1L, TimeUnit.DAYS);
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// 检查是否配置了围栏
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if (car.getFenceId() == null) {
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logger.debug("车辆未配置围栏: {}", car.getCode());
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return;
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}
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HjmFence fence = hjmFenceService.getById(car.getFenceId());
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if (fence == null) {
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logger.warn("围栏不存在: {}", car.getFenceId());
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return;
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}
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// 检查坐标有效性
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if (!isValidCoordinate(car.getLongitude(), car.getLatitude())) {
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logger.warn("车辆坐标无效: 经度={}, 纬度={}", car.getLongitude(), car.getLatitude());
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return;
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}
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// 执行围栏判断
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performFenceCheck(car, fence);
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} catch (Exception e) {
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logger.error("检查电子围栏时发生错误", e);
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}
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}
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/**
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* 检查坐标有效性
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*/
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private boolean isValidCoordinate(String longitude, String latitude) {
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return longitude != null && latitude != null &&
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!longitude.trim().isEmpty() && !latitude.trim().isEmpty();
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}
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/**
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* 执行围栏判断
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*/
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private void performFenceCheck(HjmCar car, HjmFence fence) {
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try {
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double lng = Double.parseDouble(car.getLongitude());
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double lat = Double.parseDouble(car.getLatitude());
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Point carPoint = new Point();
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carPoint.setLongitude(lng);
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carPoint.setLatitude(lat);
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// 使用多边形围栏判断
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boolean isInFence = hjmCarServiceImpl.checkPolygonFence(carPoint, fence);
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// 更新围栏状态
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car.setInFence(isInFence);
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car.setUpdateTime(LocalDateTime.now());
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hjmCarService.updateById(car);
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logger.info("车辆围栏检查完成: 车辆={}, 围栏={}, 是否在围栏内={}",
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car.getCode(), fence.getId(), isInFence);
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} catch (NumberFormatException e) {
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logger.error("车辆坐标格式错误: 经度={}, 纬度={}", car.getLongitude(), car.getLatitude(), e);
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} catch (Exception e) {
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logger.error("执行围栏判断时发生错误", e);
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}
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}
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}
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