November 2021
Beginner to intermediate
239 pages
4h 15m
Chinese
Content preview from Dapr学习手册
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86
第
2
章
状态
状态管理是应用程序设计中的一个重要课题。从文件访问到关系数据库，再
到键
/
值存储，大多数应用程序都需要以某种方式操作状态。在云上，状态
管理带来了自身独特的挑战，我们将在本章讨论。
Dapr
状态管理旨在提供一
个简单的状态
API
，帮助处理这些挑战，同时编写干净的、与平台无关的状
态处理代码。
2.1
状态管理
拨打客服热线是一种痛苦的体验，你在电话线上等了几十分钟，然后花了更
多的时间解释情况，好不容易躲过了所有阻止你取消订单或订阅的游戏规则，
然后电话就断了。在又一次漫长的等待之后，你终于重新接通了电话，然后
你需要和新的客服从头开始。
有些客服部门在你拨打电话的时候会先开一个案例。如果电话被中断，你可
以重新连接并从中断的地方继续，因为新的客服会有前一个电话中所发生的
上下文。通常情况下，这仍然是一种乏味的体验，但能够恢复而不是重新开
始绝对是一种进步。
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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.