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View Code? Open in Web Editor NEW从零开始搭建秒杀系统 由浅入深，配合博客入门教程文章食用，风味极佳。
License: Apache License 2.0
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本地配置 RabbitMq
- 本地安装RabbitMq，默认用户名guest 密码guest，
- 执行 rabbitmq-plugins enable rabbitmq_management 以启用RabbitMq Management Interface，（ localhost:15672 ）可以修改用户名和密码
- a. 手动 在RabbitMq Management Interface 中新建名为 orderQueue 和 delCache 的Queue
b. Bean自动配置 在 ~\miaosha-master\miaosha-web\src\main\java\cn\monitor4all\miaoshaweb\config\RabbitMqConfig.java 中取消对 @configuration 的注释
项目的mapper xml文件
你好，项目的mapper xml文件好像没有，可不可以补充下。
消息队列接受者问题
源码中似乎漏了公众号文章中的RabbitMQ的消费者，OrderMqReceiver 类。
然后OrderController中的createOrderByMq和createUserOrderWithMq这两个方法似乎功能类似，有冗余
并发修改redis中的用户访问次数，这里不会出问题吗？
这里可能会导致重复写的问题，导致用户的实际访问次数大于预期的次数，是否可以开启redis的事物解决这个问题？
并发安全问题
请教一下作者，
commitId：7702b62f8f0570d7ac6d1298512b25691f1521fa
代码 cn.monitor4all.miaoshaservice.service.UserServiceImpl#addUserCount 这个方法在高并发场景下，if == null的判断，会不会有安全性问题啊
博客有更新3以后的文章吗？微信推文图片清晰度不够
Please help me,run error
java.lang.IllegalArgumentException: Sources must not be empty
求数据库设计sql
或者兼容最新的依赖吗，比如mybatis或者mysql8.x
乐观锁下单问题
@OverRide
public int createOptimisticOrder(int sid) {
//校验库存
Stock stock = checkStock(sid);
//乐观锁更新库存
saleStockOptimistic(stock);
//创建订单
createOrder(stock);
return stock.getCount() - (stock.getSale()+1);
}
这个方法应该对 saleStockOptimistic(stock);的返回值做判断，再决定是否下单吧？
boolean b = saleStockOptimistic(stock);
if (!b){
throw new RuntimeException("版本错误，下单失败");
}
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