本篇文章为你整理了利用Redisson实现订单关闭(redis怎么关闭服务)的详细内容,包含有redis 订单 redis怎么关闭服务 redis实现订单倒计时取消 redis防止订单重复提交 利用Redisson实现订单关闭,希望能帮助你了解 利用Redisson实现订单关闭。
redisson_delay_queue:{ closeKey } :订单数据
redisson_delay_queue_timeout:{ closeKey } :zset类型,按时间戳排序
/**
* 创建订单,并设置过期时间
* @throws IOException
@Test
void createOrder() {
RBlockingDeque OrderInfo blockingDeque = redissonClient.getBlockingDeque(closeKey);
RDelayedQueue OrderInfo delayedQueue = redissonClient.getDelayedQueue(blockingDeque);
// 100条订单
int n = 100;
Random random = new Random();
for (int i = 0; i i++) {
// 1~100之间的正整数
int i1 = random.nextInt(100) + 1;
LocalDateTime now = LocalDateTime.now();
delayedQueue.offer(new OrderInfo(i + 1, "close: " + i1, now, now.plusSeconds(i1)), i1, TimeUnit.SECONDS);
关闭订单,这里会产生订阅。redis会出现redisson_delay_queue_channel。
/**
* 关闭订单
* @throws IOException
@Test
void closeOrder() {
ReentrantLock lock = new ReentrantLock();
// 5个线程
int poolSize = 5;
List CompletableFuture Void futureList = new ArrayList ();
for (int i = 0; i poolSize; i++) {
futureList.add(CompletableFuture.runAsync(() - {
RBlockingDeque OrderInfo blockingDeque = redissonClient.getBlockingDeque(closeKey);
// 加入监听
redissonClient.getDelayedQueue(blockingDeque);
while (true) {
OrderInfo take;
try {
take = blockingDeque.take();
} catch (Exception e) {
continue;
if (take == null) {
continue;
// 验证多次是否会重复关闭。正常里不会近,只是验证下。正式环境,可以删除
try {
lock.lock();
if(closed.contains(take.getId())){
log.info("测试是否会抢占:已存在其他线程处理关闭订单[{}]", take.getId());
closed.add(take.getId());
}finally {
lock.unlock();
// 处理订单关闭逻辑
log.info("订单[{}]关闭中。。。", take.getId());
log.info("订单[{}]已关闭!order={}", take.getId(), toJsonString(take));
}));
// 模拟正式环境中进程一直在运行,因为test时,没有join则会只执行一次出现消费完数据后进程就关闭了
CompletableFuture.allOf(futureList.toArray(new CompletableFuture[0])).join();
完整测试类:
package cn.skyjilygao.demo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.redisson.api.RBlockingDeque;
import org.redisson.api.RDelayedQueue;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.io.IOException;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentSkipListSet;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReentrantLock;
import static cn.skyjilygao.util.EntityUtil.toJsonString;
@Slf4j
@SpringBootTest
public class CloseOrderTests {
@Autowired
private RedissonClient redissonClient;
public static String closeKey = "order_close_test";
public volatile static Set Integer closed = new ConcurrentSkipListSet ();
* 创建订单,并设置过期时间
* @throws IOException
@Test
void createOrder() {
RBlockingDeque OrderInfo blockingDeque = redissonClient.getBlockingDeque(closeKey);
RDelayedQueue OrderInfo delayedQueue = redissonClient.getDelayedQueue(blockingDeque);
int a = 100;
Random random = new Random(100);
for (int i = 0; i i++) {
int i1 = random.nextInt(1 + i) + 1;
delayedQueue.offer(new OrderInfo(i + 1, "close: " + i1, LocalDateTime.now(), LocalDateTime.now().plusSeconds(i1)), i1, TimeUnit.SECONDS);
* 关闭订单
* @throws IOException
@Test
void closeOrder() {
ReentrantLock lock = new ReentrantLock();
// 5个线程
int poolSize = 5;
List CompletableFuture Void futureList = new ArrayList ();
for (int i = 0; i poolSize; i++) {
futureList.add(CompletableFuture.runAsync(() - {
RBlockingDeque OrderInfo blockingDeque = redissonClient.getBlockingDeque(closeKey);
// 加入监听
redissonClient.getDelayedQueue(blockingDeque);
while (true) {
OrderInfo take;
try {
take = blockingDeque.take();
} catch (Exception e) {
continue;
if (take == null) {
continue;
try {
lock.lock();
if(closed.contains(take.getId())){
log.info("测试是否会抢占:已存在其他线程处理关闭订单[{}]", take.getId());
closed.add(take.getId());
}finally {
lock.unlock();
log.info("订单[{}]关闭中。。。", take.getId());
log.info("订单[{}]已关闭!order={}", take.getId(), toJsonString(take));
}));
// 模拟正式环境中进程一直在运行,因为test时,没有join则会只执行一次出现消费完数据后进程就关闭了
CompletableFuture.allOf(futureList.toArray(new CompletableFuture[0])).join();
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