Hello, would you like to ask the solution to the failure of saxreader to verify the number of signatures? Check the number of signatures. The solution to the failure of saxreader processing is as follows:

1. Use the signature checking tool to check whether the signature algorithm is wrong.

2. Confirm whether the key is wrong (the service provider mode uses the key of the merchant number of the service provider, and the key is configured on the merchant platform. If the same merchant number successfully calls other interfaces, it can be ruled out that it is a key problem).

3. Confirm that the actual request parameters of the interface are consistent with those of the original signature string, and no parameters can be added or missing (check by printing the original signature string).