java开发的网络聊天程序，包括客户端和服务端，支持留言和文件传输。需要注意的是在com.chat.db包中DBUtil.java配置数据库参数。-The development of Java network chat program, including client and server, support for message and file transfer. Note that in the com.chat.db package in the DBUtil.java config

一个简单的具有网络功能的留言板程序,用Java编写-A simple which has the function of network message board procedures, written in Java