利用JXTA的P2P技术，开发的聊天程序，Java中有main函数，放到IDE里编译后可运行，编译时注意要引用JXTA库资源。-The use of P2P JXTA technology, the development of the chat program, Java main function, IDE can be compiled to run, the compiler should pay attention to the use of JXTA library resource