User business card In the pre-initialization process, the user’s business card is posted. The same is not repeated here.
First modify the system properties first:
provider. vcard.classN
Tag: Openfire
OpenFire Source Code 25: Message Receipts and Offline News (below)
This article continues immediately above.
Redis-based message receipt. The main process is divided into the following steps:
1) Temporarily store the message in redis, and set the expir