Wechat Payment V2 Error: No appropriate protocol [How to Solve]

Error message:

An error is reported when the refund interface calls the certificate:
no approve protocol (protocol is disabled or cipher suits are inappropriate)


1. [not recommended] Find jdk/jre/lib/security/java.security file to modify , remove the TLSv1 , so the production environment still have to change, so give up this method.

2. [recommended] solution: find the class corresponding to the SDK and modify it according to the following figure

Read More: