J2SE编写的一个局域网点对点聊天工具，每个程序同时作为服务器和客户端，使用Java Socket通过IP地址建立连接，可以显示对方信息、文字聊天和互传文件-J2SE written a local area network P2P chat tool, each program can act as both server and client, using Java Socket to connect with the IP address, you can display other in