商品库存消息消费开发
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jieyuu
parent
dc84ba667a
commit
7a79145dc2
@ -0,0 +1,19 @@
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package net.jieyuu.feign;
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import net.jieyuu.utils.JsonData;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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@FeignClient(name = "xdclass-order-service")
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public interface ProductOrderFeignService {
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/**
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* 查询订单状态
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*
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* @param outTradeNo
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* @return
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*/
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@GetMapping("/api/order/v1/query_state")
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JsonData queryProductOrderState(@RequestParam("out_trade_no") String outTradeNo);
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}
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@ -22,4 +22,11 @@ public interface ProductMapper extends BaseMapper<ProductDO> {
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* @return
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*/
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int lockProductStock(@Param("productId") long productId, @Param("buyNum") int buyNum);
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/**
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* 解锁商品库存
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* @param productId
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* @param buyNum
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*/
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void unlockProductStock(@Param("productId")Long productId, @Param("buyNum")Integer buyNum);
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}
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@ -0,0 +1,60 @@
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package net.jieyuu.mq;
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import com.rabbitmq.client.Channel;
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import lombok.extern.slf4j.Slf4j;
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import net.jieyuu.model.ProductMessage;
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import net.jieyuu.service.ProductService;
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import org.redisson.api.RedissonClient;
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import org.springframework.amqp.core.Message;
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import org.springframework.amqp.rabbit.annotation.RabbitHandler;
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import org.springframework.amqp.rabbit.annotation.RabbitListener;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import java.io.IOException;
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@Slf4j
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@Component
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@RabbitListener(queues = "${mqconfig.stock_release_queue}")
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public class ProductStockMQListener {
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@Autowired
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private ProductService productService;
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@Autowired
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private RedissonClient redissonClient;
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@RabbitHandler
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public void releaseProductStock(ProductMessage productMessage, Message message, Channel channel) throws IOException {
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log.info("监听到消息:releaseProductStock", productMessage);
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long msgTag = message.getMessageProperties().getDeliveryTag();
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boolean flag = productService.releaseProductStock(productMessage);
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// 防止同时解锁多任务并发进入
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// 串行消费不需要加锁
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try {
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if (flag) {
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// 确认消息消费成功 不需要重新入队
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channel.basicAck(msgTag, false);
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} else {
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log.error("释放商品库存异常 flag=false,{}", productMessage);
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// 选择重新入队
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channel.basicReject(msgTag, true);
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}
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} catch (IOException e) {
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log.error("释放商品库存异常:{},msg:{}", e, productMessage);
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// 选择重新入队
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// 再发生问题就往外抛
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channel.basicReject(msgTag, true);
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}
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}
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// @RabbitHandler
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// public void releaseCouponRecord2(String msg, Message message, Channel channel) throws IOException {
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// log.info(msg);
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// channel.basicAck(message.getMessageProperties().getDeliveryTag(), true);
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//
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// }
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}
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@ -1,6 +1,7 @@
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package net.jieyuu.service;
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import net.jieyuu.model.ProductMessage;
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import net.jieyuu.request.LockProductRequest;
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import net.jieyuu.utils.JsonData;
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import net.jieyuu.vo.ProductVO;
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@ -50,4 +51,12 @@ public interface ProductService {
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* @return
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*/
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JsonData lockProductStock(LockProductRequest lockProductRequest);
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/**
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* 释放商品库存
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*
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* @param productMessage
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* @return
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*/
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boolean releaseProductStock(ProductMessage productMessage);
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}
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@ -6,8 +6,11 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import lombok.extern.slf4j.Slf4j;
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import net.jieyuu.config.RabbitMQConfig;
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import net.jieyuu.enums.BizCodeEnum;
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import net.jieyuu.enums.CouponStateEnum;
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import net.jieyuu.enums.ProductOrderStateEnum;
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import net.jieyuu.enums.StockTaskStateEnum;
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import net.jieyuu.exception.BizException;
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import net.jieyuu.feign.ProductOrderFeignService;
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import net.jieyuu.mapper.ProductTaskMapper;
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import net.jieyuu.model.ProductDO;
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import net.jieyuu.mapper.ProductMapper;
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@ -54,6 +57,9 @@ public class ProductServiceImpl extends ServiceImpl<ProductMapper, ProductDO> im
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@Autowired
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private RabbitMQConfig rabbitMQConfig;
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@Autowired
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private ProductOrderFeignService productOrderFeignService;
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/**
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* 分页查询商品列表
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*
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@ -153,7 +159,7 @@ public class ProductServiceImpl extends ServiceImpl<ProductMapper, ProductDO> im
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ProductMessage productMessage = new ProductMessage();
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productMessage.setOutTradeNo(outTradeNo);
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productMessage.setTaskId(productTaskDO.getId());
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rabbitTemplate.convertAndSend(rabbitMQConfig.getEventExchange(), rabbitMQConfig.getStockReleaseDelayRoutingKey(), productMessage);
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log.info("商品库存锁定信息延迟消息发送成功:{}", productMessage);
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}
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@ -161,6 +167,65 @@ public class ProductServiceImpl extends ServiceImpl<ProductMapper, ProductDO> im
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return null;
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}
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/**
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* 释放商品库存
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*
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* @param productMessage
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* @return
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*/
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@Override
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public boolean releaseProductStock(ProductMessage productMessage) {
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// 查询商品任务
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ProductTaskDO taskDO = productTaskMapper.selectOne(new QueryWrapper<ProductTaskDO>().eq("id", productMessage.getTaskId()));
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if (taskDO == null) {
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log.warn("工作单不存在,消息体为:{}", productMessage);
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}
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// lock状态才处理
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if (StockTaskStateEnum.LOCK.name().equalsIgnoreCase(taskDO.getLockState())) {
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// 调用feign查询对应订单的状态
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// 锁定状态才处理
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JsonData jsonData = productOrderFeignService.queryProductOrderState(productMessage.getOutTradeNo());
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// 正常响应
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if (jsonData.getCode() == 0) {
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// 判断状态
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String state = jsonData.getData().toString();
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if (ProductOrderStateEnum.NEW.name().equalsIgnoreCase(state)) {
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// 状态是NEW，返回给消息队列，重新投递
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log.warn("状态是NEW,返回给消息队列,重新投递:{}", productMessage);
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return false;
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}
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// 订单已支付
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if (ProductOrderStateEnum.PAY.name().equalsIgnoreCase(state)) {
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// 已经支付，修改task状态为finish
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taskDO.setLockState(StockTaskStateEnum.FINISH.name());
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productTaskMapper.update(taskDO, new QueryWrapper<ProductTaskDO>().eq("id", productMessage.getTaskId()));
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log.info("订单已经支付,修改库存锁定工单为FINISH状态:{}", productMessage);
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return true;
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}
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}
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log.warn("订单不存在,或订单取消,确认消息,修改task状态为CANCLE,恢复商品库存,message:{}", productMessage);
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taskDO.setLockState(StockTaskStateEnum.CANCEL.name());
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// 修改task状态为CANCEL
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productTaskMapper.update(taskDO, new QueryWrapper<ProductTaskDO>().eq("id", productMessage.getTaskId()));
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// 恢复商品库存
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// 即锁定库存的值减去当前的buyNum
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productMapper.unlockProductStock(taskDO.getProductId(),taskDO.getBuyNum());
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return true;
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} else {
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// 工单状态不是lock
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// 认定为可能为重复消费,不需要重新投递
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log.warn("工单状态不为LOCK,state={},消息体:{}", taskDO.getLockState(), productMessage);
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return true;
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}
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}
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private ProductVO beanProcess(ProductDO obj) {
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ProductVO productVO = new ProductVO();
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BeanUtils.copyProperties(obj, productVO);
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@ -28,6 +28,12 @@
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where id = #{productId}
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and stock - lock_stock >={buyNum}
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</update>
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<!--解锁商品库存-->
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<update id="unlockProductStock">
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update product
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set lock_stock = lock_stock - #{buyNum}
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where id = #{productId}
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</update>
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</mapper>
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