ABSTRACT
In network rapid development today, the Internet become the important channel for people
to quickly get, publish and transfer information, it in people politics, economy, life and others a
spects plays an important role. There is a lot of information on the Internet so the exchange of i
nformation is particularly important. People have been looking for a convenient, inexpensive co
mmunication of information tools, so online chat will become a priority t choice for most peopl
e. This paper, by JAVA Socket realizes a LAN chat room - design and realization of chat room
based on JAVA. This chat room server includes the functions of showing the online users, log
management, chat information management, sending system information and so on.. The client
includes login，registration，male chat，private chat transmit text files, and other functions.
This article uses JAVA language, that owns various class to meet different needs of the
network, multithreading, object-oriented system. Language packs provide string processing,
multithreading processing and mathematical processing. We can use it to simply realize the
operation platform for Java program. Utility package provides support which includes hash
table, stack, variable array, the time and date, etc. Input and output package are both bases on
‘flow’ model to realize all formats of I/O, including the file system, network, input low-level
network packet which used to implement the Socket programming. Abstract graphic user
interface package implements graphical user interface components of computers in different
plantform, including windows, menus, scroll bar, dialogs, etc., which enables Java to transplant
to machines in different plantforms and simplifies the progarmming design of user/server
model.
In this article I present a solution to LAN chat software. This software is made up of two
modules: server and client. The serve implements communicate by client. Serve module
mainly realizes the server's configuration, transmission of the data and the save of the log. The
client module mainly realizes user register, login, text chat and the send and the receive of TXT
files.
This software can help companies build up their own chat system within the local area
network, avoiding internal staff leak internal information by using software like QQ and MSN.
Meanwhile, compared with traditional chatting software, this software abandons entertainment
function in order to improve the work efficiency of employees. Boring but applied. This
software only implements some basic functions of chatting, there are still many deficiencies
need to improve.
Key words：Internet chat rooms java socket
