通过Mina框架实现文件上传，是对基于socket的文件传输，基本传输需要大家一般都知道，建立socket链接设置端口，监听端口，传输处理。-By Mina fr a mework for file uploads, is a socket-based file transfer, basic transport needs we generally know, set the port to establish socket connections, monitor port, transfe