这不是一条 SQL 就搞定的事情吗？ 我曾经负责过的并发量蛮高的商品库存系统，核心扣减逻辑真的就是靠一条 SQL 搞定的。没有引入分布式锁（如 Redis Lock）或者消息队列。 核心思路其实就是数据库层面的乐观锁。利用 MySQL 的行锁特性 + UPDATE 语句的原子性，再配合 Java 中判断影响行数（Affected ...

JDK 27 JDK 27的早期访问构建版本Build 9也在上周发布，包含了从Build 8的更新，其中包括对各种问题的修复。关于这个版本的更多细节可以在发布说明中找到。 JDK 26 JDK 26的早期访问构建版本Build 35在上周发布，包括从Build 34的更新，修复了各种问题。关于该版本的更多细节可以在发布说明中找到。 根据JDK ...

Weeks of frigid cold, which morphed snow mounds into immovable, roadside icebergs, have added motivation to an annual question. When does spring 2026 start? It’s been a harder winter than in recent ...

The Spring Classics mark the thaw of winter and the end to training rides, coffee stops and team presentations as riders start to dig into the meat of the 2026 season. Omloop Het Nieuwsblad Women 2026 ...

Microsoft has announced that the original Secure Boot certificates that were issued when the feature first began shipping 2011 are set to expire this June, and that PCs which are not up to date will ...

You can't tell the baseball players without a program ... and you can't find spring training camps without a map. Of course, you probably could do both just fine on your own, but why make things ...

It’s your time to shine millennials, ankle boots are back and trending. Plus, more styles you’ll need for spring showers ahead. By Camila Quimper Feb 07, 2026 12:00 AMTags French girl fashion is back ...

Microsoft is making it easier for IT admins to monitor the status of Secure Boot on Windows devices across their organization. Secure Boot has been a pretty hot topic for Microsoft lately, especially ...

"Astronomical spring.""Meteorological spring."We've all heard these terms before and might even know the difference between the two. But have you ever heard of "solar spring?"Solar spring is the ...

It's Groundhog Day 2026, and Punxsutawney Phil predicted we will see six more weeks of winter. While many booed and scowled at the idea of more cold, the woodchuck may not be so far off. The first day ...

ZANESVILLE, Ohio – A new business held a ribbon-cutting on Friday at Northpointe Center to kick off a weekend-long celebration. The Boot Barn had a soft opening on the 13th and todays ribbon cutting ...

Historic publication The Old Farmer’s Almanac has issued a long-range forecast for spring 2026, offering some insight into what conditions each region across the country can expect. "We are ...