I. Introduction
The 21st century is the era of information and multimedia. The rapid development of network technology has promoted the transmission and exchange of information worldwide. File sharing between people is becoming more and more frequent. With the improvement of technology quality, files become much larger than before. At this time, people will have great requirements for file processing. We can transfer it by email, or copy it to others through a U disk, or send it to others through a cloud disk. These have many limiting factors, such as U disk can only share files face to face, and if you are not a member of the cloud disk, downloading files is called a slow speed, so these are very inconvenient for people nowadays. People are eager to find more convenient sharing method.
In the spirit of Internet sharing, FTP plays a decisive role. A very important feature of FTP service is that it is not limited to the platform and can be operated on any operating system. There are already many file servers related to FTP in the world. These servers are open to the vast number of Internet users. Many sites have established databases to provide to the Internet community. People can obtain these materials through FTP. Of course, there are some mature FTP client software on the market at present, but each of these software has its own advantages and disadvantages, and some of them require registration and payment to use. There may also be incompatibility of different operating systems and security issues. It is difficult to find free and safe FTP software in China. Although the operating system has built-in FTP software, it is based on the command line and does not have a friendly user interface. It is very difficult for ordinary users to operate, and it does not support functions such as resume. Therefore, it is very necessary to develop a safe and effective FTP client in China.
The FTP network transfer data transfer process is safe and free. Using Spring Cloud to design and implement the FTP client can greatly improve its flexibility, and its scalability is also very strong. When you only need to use some modules of FTP, you only need to deploy and start some modules; and when some modules have serious errors, it will not cause the entire client to crash. And you can integrate multiple technologies and choose according to your own needs. Even cross-language operations can be done through certain packages.
To sum up, the FTP client software