android使用TCP协议传输数据的例子和教程，具有很好的参考价值-Examples of android using the TCP protocol to transmit data and tutorials, has the very good reference value

仿QQ聊天。是采用 Java平台开发的一套即时通讯聊天系统，献给对即时通讯有兴趣的朋友。服务端实现了TCP Socket和WebSocket，方便接入网页版、安卓、IOS、PC桌面版客户端(Imitation QQ chat. It is an instant messaging chat system developed on the Java platform dedicated to friends who are interested in instant messaging. The