针对远程各部门之间进行通知、报文报表传输等应用场合,实现了一个基于DataSnap的远程文件安全稳定传输软件的设计。该设计使用Delphi XE2开发工具,利用DataSnap控件实现了通信链路的自动连接、文件发送、文件获取、后台监视等过程,具体给出了用于文件传输的状态控制协议的定义和软件的实现方法。实际应用表明,该软件可在任意两个互连的远程终端用户安全、稳定地传输各种格式的文本、Excel表格及声音、图像文件等。 Aiming at the applications such as the notification between remote departments and the transmission of message reports, a DataSnap-based remote file security and stability transmission software design is realized. The design uses the Delphi XE2 development tool and uses the DataSnap control to realize the automatic connection, file sending, file acquisition, background monitoring and other processes of the communication link, and gives the definition of the state control protocol for file transmission and the software implementation method . The practical application shows that the software can safely and stably transmit various formats of texts, Excel tables, audio files, image files and the like to any two interconnected remote end users.