How can I return parameters to WeChat for repeated notifications of WeChat payment results?

The xml code "direct return {code...}" written in the development document does not work and will still receive repeated notifications. How can this problem be solved? Return directly written in the development document

   
   SUCCESS
     
   OK
   
  

This xml Code does not work and will still receive repeated notifications. How can this problem be solved?

Reply content:

Return directly written in the development document

   
   SUCCESS
     
   OK
   
  

This xml Code does not work and will still receive repeated notifications. How can this problem be solved?

For payment development, we recommend you go to the official documentation and source code. I used to waste a lot of time because I didn't read the document carefully. Please refer to the development of payment (PHP ):
http://www.ihuxu.com/blog/wechat-pay-sdk-development/

Determine whether the order has been updated before return xml. The updated order is not processed directly.

The most direct one is to download the official demo and run it to see if there is any problem and then compare it with your own code to see if there is a problem with that step.

Http://www.oschina.net/question/560841_225367

You need to give a callback address, and then retrieve the data it post. It should be in xml format and you can parse it yourself.

If the notification already exists, ignore it.