September 2022
Beginner to intermediate
321 pages
4h 50m
Chinese
Content preview from 语义软件设计
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148
｜
第
7
章
中整理出一个列表，列出应用程序可以而且应该使用的服务。你不能等到事后再考
虑。任何团队构建的一切都应该成为服务。
有些人非常迷信实现语言。对于任何规模的企业来说，这都不是一个成熟的观点，
而且也不重要。如今更胜从前，实现语言根本不重要，尤其是需要公开的服务。人
们经常就线程模型、性能、可伸缩性和可移植性以及
Java
为何成为一门教学语言，
还有关于
Go
等问题争得面红耳赤。我觉得这些谈话都非常无聊。作为一名像生意
人一样思考的设计师，关心平台所使用编程语言的主要原因只有一个：人才。
协议也是解构方法需要考虑的一个元素。二十多年来，我们的技术人员为了应对最
新的协议花了大量的时间，这一点众所周知。当初每个人不得不使用
SOAP
。后来
他们讨厌
SOAP
，又不得不全部换成
XML
。接着他们又非常讨厌
XML
，于是又不
得不换成
JSON
。聪明的少数人吹捧
ProtoBuf
。
Cassandra
之类的流行产品使用了
Avro
，于是周围就出现了一群支持者。很快又会出现其他协议。
关键在于，与用户界面一样，你需要通过一个或多个协议公开
API
，而这些协议必
须与引擎的工作分开。在提供服务时，至少在向外界提供服务时，同时支持多个协
议是一个好主意。但你应该明白将来协议会发生改变，而且必须在正确的位置实现
协议和服务之间的语义分割。协议就像用户界面一样，只是将消息传递给用户的特
定表现形式。协议不是消息本身，也不是通过数学运算生成消息的工作引擎。我认
为协议就像在不同场所展示的故事。就像灰姑娘的故事一样，你可以通过书本、百 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.