java实现UDP socket打洞，使消息在nat之间传递-java implementation UDP socket holes, so that messages passed between the nat! ! !

P2P通信源码。主要用于实现视频通信。利用NAT技术打洞，首先实现客户端与服务器的通信-P2P communication source. Mainly used for video communications. Holes using NAT technology, the first to achieve communication between the client and the server

java编写通过UDP打洞技术穿透内网，实现不同NAT之间通信-Java prepared by the UDP holes penetrate the network, realize the communication between different NAT