基于Socket的局域网聊天室系统， 本系统是采用JAVA1.6来完成的，是在TCP/IP环境下，实现客户端和服务器端两部分程序（Client和Server）。即首先服务器方要启动，客户端向服务器发出请求,服务器接收到请求后提供相应的服务。当客户端连接到已启动的服务器，客户端用户登录时，客户端输入的内容通过服务器端与其他客户端连接；客户端进入聊天室聊天时，服务器端与客户端进行数据交互。-Socket LAN-based chat room system, the system is used to complete JAVA1.6 is in the TCP/IP environment, the achievement of client and server-side program in two parts (Client and Server). That is, first of all, to start the server side, the client request to the server, the server receives a request to provide the corresponding services. When the client has started to connect to the server, client users log on, enter the contents of the client through the server-side with other clients to connect　client to enter the chat room to chat, the server-side data and client interaction.