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The previous section describes how to write the simplest FTP client program. In this section, we extend this program so that it can browse and download all the
FTP is a File Transfer Protocol that supports two modes: Standard (Active) and Passive (PASV, passive mode ). The FTP client in Standard mode sends the PORT command to the FTP server. The client in Passive mode sends the PASV command to the FTP
FTP is a file transfer protocol, it supports two modes, one is called standard (that is, active, active), one is Passive (that is, PASV, passive mode). The standard mode FTP client sends the PORT command to the FTP server. The passive mode FTP
FTP is a file transfer protocol, it supports two modes, one is called standard (that is, active, active mode), one is passive (that is, PASV, passive mode). Standard mode FTP client sends PORT command to FTP server. Passive mode FTP client sends
Why use this class?
Because of an egg ache project, Project Server in another company (referred to as company A) hands, company A, their servers do not open the network permissions, afraid of problems. Because the project is under development, so
Import Packages First
Import org.apache.commons.net.ftp.FTPClient;Import Org.apache.commons.net.ftp.FTPFile;
The FtpClient class library mainly provides classes for establishing an FTP connection. Using these classes, programmers can log on remotely
When work is used, record it, that is, there is a shared directory on the network path, assign you an account and password with certain permissions to read and write, do not make changes in the configuration file, relatively safe. The
Only to achieve the basic upload, download, determine whether the file exists and my practical application of the most important based on the selected remote file address automatically create related directory features
Specific code Download:
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