此为JAVA SOCKET SERVER程式，可模拟从银行置机返还信息给POS终端的信息，也可以接受客户端的发送的BYTE，并显示在显示屏上。-This is a JAVA SOCKET SERVER program can simulate the machine returned home from the bank information to the POS terminal of the information, you can also send the client to accept the BYTE, and displayed on the screen.