Enterprise WeChat allows customized applications to receive messages from users. I looked at the documentation and found a sentence that I struggled with for a long time. This sentence is:
"Urldecode the received request"
I have never understood what this sentence means, and then I successfully verified the URL, but I still don't know what this sentence means.
Verifying the URL is very simple. In the enterprise WeChat background, set the three parameters of the custom application, and then in the controller ACTION method, get the passed parameters, use the decryption library provided by the enterprise WeChat, and you are done.