Introduction - If you have any usage issues, please Google them yourself
Web/html5 calls the camera to realize the two-dimensional code scan.
Java extension usage description
The parsing process requires Java environment support, and the jar packet starts to receive socket listeners on the 20147 port of the machine, so the network programming language can be called.
1 the command line starts the jar package
Java -jar xxxxx.jar
Startup success should be able to see the 20147 port application
2 service socket call
Temporarily provide PHP call code