基于Rdisson实现延时队列，解决支付延时查单关单方案
Posted 吃坨西红柿
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1.需求
下单支付后，支付回调因部分因素不可达，导致订单状态与微信支付状态不一致。此时需要服务端主动查询订单支付状态，进行更改订单状态。
2.实现方式
- 基于定时任务
每隔30秒启动一次，找出最近10分钟内创建并且未支付的订单，调用微信查单接口核实订单状态。系统记录订单查询的次数，在n次查询之后状态还是未支付成功，则停止后续查询，并调用关单接口关闭订单。 - 基于延时队列
每隔5秒/30秒/1分钟/3分钟/5分钟/10分钟/30分钟调用查单接口，若查询付款成功，不再执行队列任务，最后一次查询若还是未返回支付成功状态，则停止后续查询，并调用《关单接口》关闭订单。 - 延时队列实现方式（这里不做详细描述，优缺点自行百度，本文采用redis实现）
- delayqueue
- RabbitMQ
- reids
3.具体代码
新建实体类 DelayQueueJob 与 ScoredSortedItem
/**
* @Desecription: 延迟任务
* @Author: yangyu
* @Date: 2021/9/10 14:35
*/
@Data
public class DelayQueueJob implements Serializable {
/**
* 延迟任务的唯一标识，用于检索任务
*/
private long jobId;
/**
* 任务的执行时间段
*/
private List<Long> delayTimeList;
/**
* 任务的执行次数
*/
private Integer exCount = 0;
/**
* 任务的执行时间单位
*/
private TimeUnit timeUnit = TimeUnit.SECONDS;
/**
* 任务的执行超时时间
*/
private long timeout;
/**
* 订单编号，根据编号查询订单
*/
private String orderCode;
/**
* 任务类型（具体业务类型）
*/
private Integer topic;
/**
* 任务状态 0：执行 1：结束
*/
private int jobType = 0;
}
/**
* @Desecription: 延时任务 桶
* @Author: yangyu
* @Date: 2021/9/10 14:55
*/
@Data
@AllArgsConstructor
public class ScoredSortedItem implements Serializable {
/**
* 延迟任务的唯一标识
*/
private long jobId;
/**
* 任务的执行时间
*/
private long delayTime;
}
定义常量
/**
* @Desecription: 延时队列常量
* @Author: yangyu
* @Date: 2021/9/10 14:44
*/
public class DelayQueueConstant {
/*
* 延时任务池
* */
public static final String DELAY_QUEUE_JOB_POOL = "delayQueue:delayQueueJobPool:";
/*
* 延时桶
* */
public static final String DELAY_BUCKET_KEY_PREFIX = "delayQueue:delayBucket:";
/*
* 任务的执行时间段
* */
public static final List<Long> SLOT_DELAY_TIME = Arrays.asList(5L, 30L, 60L, 180L, 300L, 600L, 1800L);
/*
* 任务的执行固定时间
* */
public static final List<Long> FIXED_DELAY_TIME = Arrays.asList(1800L);
}
zset有序队列操作类
/**
* @Desecription: 以时间为维度的有序队列zset 操作类，参考redisson_delay_queue_timeout
* @Author: yangyu
* @Date: 2021/9/10 14:50
*/
@Component
public class DelayBucket {
@Autowired
private RedissonClient redissonClient;
/**
* @Desecription: 添加jobId到延迟任务桶中
* @Param: key
* @Param: jobId
* @Param: delayTimeList
* @Return:
* @Author: yangyu
* @Date: 2021/9/10 14:52
*/
public void addToBucket(String key, Long jobId, List<Long> delayTimeList, TimeUnit timeUnit) {
RScoredSortedSet<ScoredSortedItem> scoredSortedSet = redissonClient.getScoredSortedSet(DelayQueueConstant.DELAY_BUCKET_KEY_PREFIX + key);
long millis = System.currentTimeMillis();
for (int i = 0; i < delayTimeList.size(); i++) {
ScoredSortedItem scoredSortedItem = new ScoredSortedItem(jobId, millis + timeUnit.toMillis(delayTimeList.get(i)));
scoredSortedSet.add(scoredSortedItem.getDelayTime(), scoredSortedItem);
}
}
/**
* @Desecription: 从延迟任务桶中获取延迟时间最小的 jodId
* @Param: jobIdKey
* @Return: ScoredSortedItem
* @Author: yangyu
* @Date: 2021/9/10 15:35
*/
public ScoredSortedItem getFromBucket(String key) {
RScoredSortedSet<ScoredSortedItem> scoredSortedSet = redissonClient.getScoredSortedSet(DelayQueueConstant.DELAY_BUCKET_KEY_PREFIX + key);
if (scoredSortedSet.size() == 0) {
return null;
}
return scoredSortedSet.first();
}
/**
* @Desecription: 从延迟任务桶中删除 jod
* @Param: key
* @Param scoredSortedItem
* @Return:
* @Author: yangyu
* @Date: 2021/9/10 14:52
*/
public void deleteFormBucket(String key, ScoredSortedItem scoredSortedItem) {
RScoredSortedSet<ScoredSortedItem> scoredSortedSet = redissonClient.getScoredSortedSet(DelayQueueConstant.DELAY_BUCKET_KEY_PREFIX + key);
scoredSortedSet.remove(scoredSortedItem);
}
}
延时任务类
/**
* @Desecription: 操作延时任务
* @Author: yangyu
* @Date: 2021/9/10 14:43
*/
@Component
public class DelayQueueJobPool {
@Autowired
private RedissonClient redissonClient;
/**
* @Desecription: 添加延时队列job
* @Param: delayQueueJob
* @Author: yangyu
* @Date: 2021/9/10 14:43
*/
public void addDelayQueueJob(DelayQueueJob delayQueueJob, String key) {
RMap<Long, DelayQueueJob> rMap = redissonClient.getMap(DelayQueueConstant.DELAY_QUEUE_JOB_POOL + key);
rMap.put(delayQueueJob.getJobId(), delayQueueJob);
}
/**
* @Desecription: 删除延时队列job
* @Param: jobId
* @Author: yangyu
* @Date: 2021/9/10 14:46
*/
public void deleteDelayQueueJob(Long jobId, String key) {
RMap<Long, DelayQueueJob> rMap = redissonClient.getMap(DelayQueueConstant.DELAY_QUEUE_JOB_POOL + key);
rMap.remove(jobId);
}
/**
* @Desecription: 查询延时队列job
* @Param: jobId
* @Return:
* @Author: yangyu
* @Date: 2021/9/10 17:04
*/
public DelayQueueJob getDelayQueueJob(Long jobId, String key) {
RMap<Long, DelayQueueJob> rMap = redissonClient.getMap(DelayQueueConstant.DELAY_QUEUE_JOB_POOL + key);
return rMap.get(jobId);
}
/**
* @Desecription: 修改延时队列job
* @Param: jobId
* @Author: yangyu
* @Date: 2021/9/10 14:46
*/
/**
* @Desecription: 描述方法
* @Param: jobId
* @Param: jobId
* @Return:
* @Author: yangyu
* @Date: 2021/9/13 11:09
*/
public void updateDelayQueueJob(DelayQueueJob delayQueueJob, String key) {
RMap<Long, DelayQueueJob> rMap = redissonClient.getMap(DelayQueueConstant.DELAY_QUEUE_JOB_POOL + key);
rMap.replace(delayQueueJob.getJobId(), delayQueueJob);
}
}
封装api
@Log4j2
@Component
public class RedisDelayedQueue {
@Autowired
private DelayQueueJobPool delayQueueJobPool;
@Autowired
private DelayBucket delayBucket;
/**
* @Desecription: 添加延迟任务到延迟队列
* @Param:
* @Author: yangyu
* @Date: 2021/9/10 14:41
*/
public void push(DelayQueueJob delayQueueJob, String simpleName) {
delayQueueJobPool.addDelayQueueJob(delayQueueJob, simpleName);
delayBucket.addToBucket(simpleName, delayQueueJob.getJobId(), delayQueueJob.getDelayTimeList(), delayQueueJob.getTimeUnit());
}
}
队列事件监听接口
/**
* @Desecription: 队列事件监听接口
* @Author: yangyu
* @Date: 2021/9/10 10:11
*/
public interface RedisDelayedQueueListenerService<T> {
void invoke(T t);
}
两个接口实现类，主要分固定时间和延时时间，具体业务代码就不贴出来了
/**
*
* @Desecription: 延时队列监听
* @Author: yangyu
* @Date: 2021/9/10 14:32
*/
@Log4j2
@Service
public class DelayedQueueSlotTime implements RedisDelayedQueueListenerService<DelayQueueJob> {
@Autowired
private WeChatPay chatPay;
@Autowired
private CrcxPayDetailService crcxPayDetailService;
@Autowired
private CrcxOrderService crcxOrderService;
@Autowired
private DelayQueueJobPool delayQueueJobPool;
@Override
public void invoke(DelayQueueJob delayQueueJob) {
log.info("时间段执行：{}", delayQueueJob);
// topic == 1 查单延时任务
if (delayQueueJob.getTopic() == 1) {
// 1.通过订单编号，调用微信查单接口，查询微信订单支付状态。
try {
Map<String, String> queryOrder = chatPay.getQueryOrder(delayQueueJob.getOrderCode());
// 2.若已付款，对比系统订单状态，未付款修改订单状态，付款不做处理，
String tradeState = queryOrder.get("tradeState");
if (tradeState.equalsIgnoreCase("SUCCESS")) {
CrcxOrder crcxOrder = new CrcxOrder();
crcxOrder.setOrderCode(delayQueueJob.getOrderCode());
crcxOrder = crcxOrderService.getCrcxOrderByCode(crcxOrder);
if (crcxOrder.getIsPay() == 0) {
// 3.通过订单编号 查 crcx_pay_detail 支付单-明细
CrcxPayDetail crcxPayDetail = new CrcxPayDetail();
crcxPayDetail.setTradeCode(delayQueueJob.getOrderCode());
crcxPayDetail = crcxPayDetailService.getPayDetail(crcxPayDetail);
// 4.进行修改订单状态
int update = crcxOrderService.updateOrderStatus(crcxPayDetail, queryOrder);
if (update >= 1) {
log.info("延时队列：修改订单支付状态成功");
} else {
log.error("延时队列：修改订单支付状态失败");
}
}
// 5.标记任务不需要再进业务逻辑。因为再 zset 中无法通过jobId 或者 订单编号获取对应的List
delayQueueJob.setJobType(1);
delayQueueJobPool.updateDelayQueueJob(delayQueueJob, this.getClass().getSimpleName());
}
// 6.非已付款，不做任何处理，继续执行延时任务，直到执行完毕，或者订单已付款。
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
/**
*
* @Desecription: 固定时间队列监听
* @Author: yangyu
* @Date: 2021/9/10 13:18
*/
@Log4j2
@Service
public class DelayedQueueFixedTime implements RedisDelayedQueueListenerService<DelayQueueJob> {
@Autowired
private CrcxOrderService crcxOrderService;
@Override
public void invoke(DelayQueueJob delayQueueJob) {
log.info("固定时间执行...." + delayQueueJob.getJobId());
if (delayQueueJob != null) {
// 查询订单状态是否未支付状态
CrcxOrder crcxOrder = new CrcxOrder();
crcxOrder.setOrderCode(delayQueueJob.getOrderCode());
crcxOrder = crcxOrderService.getCrcxOrderByCode(crcxOrder);
if (crcxOrder.getIsPay() == 0) {
// 将待支付的订单改为已取消(超时未支付)
crcxOrder.setStatusCode(50);
int ref = crcxOrderService.orderPaidTimeout(crcxOrder);
if (ref == 0) throw new CustomException("自动取消订单失败");
}
}
}
}
初始化队列监听
/**
* @Desecription: 初始化队列监听
* @Author: yangyu
* @Date: 2021/9/10 9:31
*/
@Log4j2
@Component
public class RedisDelayedQueueInit implements ApplicationContextAware {
@Autowired
private DelayBucket delayBucket;
@Autowired
private DelayQueueJobPool delayQueueJobPool;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
Map<String, RedisDelayedQueueListenerService> map = applicationContext.getBeansOfType(RedisDelayedQueueListenerService.class);
for (Map.Entry<String, RedisDelayedQueueListenerService> taskEventListenerEntry : map.entrySet()) {
String listenerName = taskEventListenerEntry.getValue().getClass().getSimpleName();
startThread(listenerName, taskEventListenerEntry.getValue());
}
}
/**
* @Desecription: 启动线程获取队列
* @Param: queueName
* @Param: redisDelayedQueueListenerService 任务回调监听
* @Return:
* @Author: yangyu
* @Date: 2021/9/10 11:32
*/
private <T> void startThread(String queueName, RedisDelayedQueueListenerService redisDelayedQueueListenerService) {
Thread thread = new Thread(() -> {
// 有时间误差，一般在一秒左右
log.info("启动监听队列线程:{}", queueName);
while (true) {
try {
ScoredSortedItem item = delayBucket.getFromBucket(queueName);
// 没有任务就堵塞
if (item == null) {
Thread.sleep(1000);
continue;
}
// 延迟时间没到
if (item.getDelayTime() > System.currentTimeMillis()) {
Thread.sleep(1000);
continue;
}
DelayQueueJob delayQueueJob = delayQueueJobPool.getDelayQueueJob(item.getJobId(), queueName);
// 延迟任务数据不存在
if (delayQueueJob == null) {
log.info("延迟任务数据不存在·····");
delayBucket.deleteFormBucket(queueName, item);
Thread.sleep(1000);
continue;
}
// 如果后面任务不需要执行，不走业务逻辑,删除正常执行
if (delayQueueJob.getJobType() == 0) {
new Thread(() -> {
DelayQueueJob job = new DelayQueueJob();
BeanUtils.copyProperties(delayQueueJob, job);
redisDelayedQueueListenerService.invoke(job);
}).start();
}
Integer exCount = delayQueueJob.getExCount();
if (exCount == 1) {
delayQueueJobPool.deleteDelayQueueJob(delayQueueJob.getJobId(), queueName);
delayBucket.deleteFormBucket(queueName, item);
continue;
}
delayQueueJob.setExCount(--exCount);
delayQueueJobPool.updateDelayQueueJob(delayQueueJob, queueName);
delayBucket.deleteFormBucket(queueName, item);
} catch (Exception e) {
log.error("监听队列线程错误：", e);
try {
Thread.sleep(10000);
} catch (InterruptedException ex) {
}
}
}
});
thread.setName(queueName);
thread.start();
}
}
主要使用到的依赖包
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson-spring-boot-starter</artifactId>
<version>3.10.5</version>
</dependency>
至此整个redis延时队列就实现完成。如果觉得有用，麻烦点个赞，万分感谢。
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