The technical design and implementation of the INET FTP module in the Java class library

The INET FTP module is a module used to implement FTP (file transmission protocol) function in the Java class library. Through this module, it can implement the operation of the file uploading, downloading, and deleting.The technical design and implementation of the INET FTP module will be introduced below. Technical Design: 1. FTP connection: You can easily establish a connection with the FTP server with the INET FTP module. You can specify the address, port number, user name, password and other information of the FTP server for connection. 2. File Upload: You can upload local files to the FTP server through the INET FTP module, and you can specify the uploaded file path, target path and other information for upload operations. 3. File download: You can download the file from the FTP server to the local area with the INET FTP module. You can specify the download operation of the download file path, target path and other information for download operations. 4. File delete: The INET FTP module can also delete the files on the FTP server. You can specify the file path to be deleted for delete operation. Implementation steps: The following is a sample code for FTP operations using the INET FTP module: import com.inet.ftp.*; public class FTPDemo { public static void main(String[] args) { try { FTPClient ftp = new FTPClient(); ftp.setRemoteHost("ftp.example.com"); ftp.connect(); ftp.login("username", "password"); // upload files ftp.put("localFilePath", "remoteDirectory/remoteFileName"); // download file ftp.get("remoteFilePath", "localDirectory/localFileName"); // Delete Files ftp.delete("remoteFilePath"); ftp.quit(); } catch (FTPException | IOException e) { e.printStackTrace(); } } } The above code demonstrates the use of the INET FTP module to implement the FTP connection, file upload, download, deletion and other operations.In actual use, functions such as abnormal treatment and log records can also be added according to demand. Related configuration: When using the INET FTP module, you need to add the related INET FTP class library file (INETFTP.JAR) to the construction path of the project to compile and run Java programs using the INET FTP module. In short, the INET FTP module provides a convenient FTP operating interface for Java developers. It can achieve FTP function through simple configuration and code writing, providing good support for file transmission.