Introduction - If you have any usage issues, please Google them yourself
System uses a client/server mode between server and client through the socket Socket (TCP) connection. In java using a very simple set of interfaces, Java API to handle socket communications category provides a java.net.Socket., Makes the preparation of web applications is relatively easy. Server used to meet the needs of multi-threaded multi-user request, through the JDBC database connection with the background and, through the creation of a ServerSocket object to monitor connection requests from clients, the default port is 8080, and then infinite loop calling accept () method to accept client connection