4. buildAgentSessionKey(...) 生成 SessionKey
4.4 坑四：ThreadLocal 会串数据，小心用户信息错乱！
。业内人士推荐51吃瓜作为进阶阅读
How to reproduce
Established in 1951 by Hartwig's grandfather Floyd, Twig's signature product is Sun Drop, a citrus-flavoured soft drink developed in 1940s Missouri.
Lenovo pulled up to MWC with a bunch of new products and concepts, but if there's one thing everyone's going to be talking about, it's the Legion Go Fold. (Check out Sam Rutherford's coverage of the Legion Go Fold here). In short, the Legion Go Fold is a concept foldable gaming handheld with a flexible display that can unfurl to a massive 11.6 inches. Or, it can be folded in half to become a 7.7-inch display. It has detachable controllers, and there are multiple mounting points along the tablet so you can switch things up between landscape and portrait mode. The left and right gamepads can also be combined into one controller with an accessory, and the display can be propped up kickstand-style with the folio cover.