Hello,
 
  if one user wants to access our server via a gui(running on the
client side)
and send data(may be a file) to the server.Once server got a data,
server running
one program to process that data, and send the output to the
client(May be a file).
Also the server wants to keep track of the client information(such as
login name,date)
in a database for future use.Now the question is which java
technology i can use to
satisfy these requirments. Please share the information that will help
us for developing.
Thanks in advance.