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:ambulance:redis队列超卖情况的分析以及解决方案

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zhipeng.zhang
2019-10-12 16:22:49 +08:00
parent bc8d0e7625
commit dcb60e0d3c
3 changed files with 87 additions and 69 deletions
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76
src/main/java/com/itstyle/seckill/queue/redis/RedisConsumer.java
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@@ -1,38 +1,40 @@
package com.itstyle.seckill.queue.redis;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.itstyle.seckill.common.entity.Result;
import com.itstyle.seckill.common.enums.SeckillStatEnum;
import com.itstyle.seckill.common.redis.RedisUtil;
import com.itstyle.seckill.common.webSocket.WebSocketServer;
import com.itstyle.seckill.service.ISeckillService;
/**
* 消费者
* @author 科帮网 By https://blog.52itstyle.com
*/
@Service
public class RedisConsumer {
@Autowired
private ISeckillService seckillService;
@Autowired
private RedisUtil redisUtil;
public void receiveMessage(String message) {
//收到通道的消息之后执行秒杀操作(超卖)
String[] array = message.split(";");
if(redisUtil.getValue(array[0])==null){//control层已经判断了，其实这里不需要再判断了
Result result = seckillService.startSeckilDBPCC_TWO(Long.parseLong(array[0]), Long.parseLong(array[1]));
if(result.equals(Result.ok(SeckillStatEnum.SUCCESS))){
WebSocketServer.sendInfo(array[0].toString(), "秒杀成功");//推送给前台
}else{
WebSocketServer.sendInfo(array[0].toString(), "秒杀失败");//推送给前台
redisUtil.cacheValue(array[0], "ok");//秒杀结束
}
}else{
WebSocketServer.sendInfo(array[0].toString(), "秒杀失败");//推送给前台
}
}
package com.itstyle.seckill.queue.redis;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.itstyle.seckill.common.entity.Result;
import com.itstyle.seckill.common.enums.SeckillStatEnum;
import com.itstyle.seckill.common.redis.RedisUtil;
import com.itstyle.seckill.common.webSocket.WebSocketServer;
import com.itstyle.seckill.service.ISeckillService;
/**
* 消费者
* @author 科帮网 By https://blog.52itstyle.vip
*/
@Service
public class RedisConsumer {
@Autowired
private ISeckillService seckillService;
@Autowired
private RedisUtil redisUtil;
public void receiveMessage(String message) {
Thread th=Thread.currentThread();
System.out.println("Tread name:"+th.getName());
//收到通道的消息之后执行秒杀操作(超卖)
String[] array = message.split(";");
if(redisUtil.getValue(array[0])==null){//control层已经判断了，其实这里不需要再判断了
Result result = seckillService.startSeckilDBPCC_TWO(Long.parseLong(array[0]), Long.parseLong(array[1]));
if(result.equals(Result.ok(SeckillStatEnum.SUCCESS))){
WebSocketServer.sendInfo(array[0], "秒杀成功");//推送给前台
}else{
WebSocketServer.sendInfo(array[0], "秒杀失败");//推送给前台
redisUtil.cacheValue(array[0], "ok");//秒杀结束
}
}else{
WebSocketServer.sendInfo(array[0], "秒杀失败");//推送给前台
}
}
}