November 2021
Beginner to intermediate
239 pages
4h 15m
Chinese
Content preview from Dapr学习手册
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Actor
｜
169
Reminders
的工作方式与计时器类似，但它们是持久化的。它们不会与
actor
实例一起消亡。反之，它们始终存在，除非被显式地反注册，如下一节所述。
5.2.4 Reminder
与计时器不同，
Reminder
是持久化的。
它用于按指定的时间间隔来安排工作。
如果一个
actor
被杀死或被调度到其他主机时，
reminder
被保留下来并在触
发时开启调用（并因此重新创建
actor
）。以下示例显示如何使用
HTTP
创建
actor
的
reminder
：
curl http://localhost:3500/v1.0/actors/stormtrooper/50/reminders/checkRebels \
-H "Content-Type: application/json"
-d '{
"data": "someData",
"dueTime": "1m",
"period": "20s"
}'
本示例在类型为
Stormtrooper ID
为
50
的
actor
上创建了一个
checkRebels
的
reminder
。传递给
Dapr
运行时的数据包括了
dutTime
（表示启动这个
reminder
之前要等待的时间）和
period
（用于设置重复时间间隔）。
你可以使用
HTTP
请求显式地删除
reminder
。
以下示例介绍了如何删除
checkRebels reminder
：
curl http://localhost:3500/v1.0/actors/stormtrooper/50/reminders/checkRebels ...
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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.