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This article mainly shows you "springboot how to upload files through the integration of ftp", the content is easy to understand, well-organized, hope to help you solve your doubts, the following let the editor lead you to study and learn "springboot how to achieve file upload through integrated ftp" this article.

1 、 FileUtilpackage io.renren.modules.oss.utils;import org.apache.commons.net.ftp.FTPClient;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Component;import org.springframework.util.StringUtils;import java.io.IOException;import java.io.InputStream;import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.Date @ Componentpublic class FileUtil {/ / ftp server ip address @ Value ("${custom.config.file-server.ip}") / related configuration is placed in application.properties String FTP_ADDRESS; / / port number @ Value ("${custom.config.file-server.port}") Integer FTP_PORT; / / user name @ Value ("${custom.config.file-ftp-user}") String FTP_USERNAME / / password @ Value ("${custom.config.file-ftp-password}") String FTP_PASSWORD; / / Picture path @ Value ("${custom.config.file-savepath}") String FTP_BASEPATH; / / generate a folder private static String getTimePath () {Date now = new Date (); DateFormat format = new SimpleDateFormat ("yyyy/MM/dd/"); return format.format (now) based on the current file } public String upload (InputStream inputStream, String originName) {StringBuilder url = new StringBuilder (); FTPClient ftp = new FTPClient (); ftp.setControlEncoding ("GBK"); try {int reply; ftp.connect (FTP_ADDRESS, FTP_PORT); / / Connect to FTP server ftp.login (FTP_USERNAME, FTP_PASSWORD); / / Log in reply = ftp.getReplyCode (); System.out.println ("reply:" + reply) Ftp.enterLocalPassiveMode (); / / turn on passive mode, otherwise file upload will not succeed and String timePath = getTimePath (); String saveDir = FTP_BASEPATH + timePath; url.append (saveDir); ftp.setFileType (FTPClient.BINARY_FILE_TYPE); createDir (ftp, saveDir); / / ftp.makeDirectory (saveDir); / / ftp.changeWorkingDirectory (FTP_BASEPATH) OriginName= System.currentTimeMillis () + originName.substring (originName.lastIndexOf ('.')); url.append (originName); ftp.storeFile (originName, inputStream); inputStream.close (); ftp.logout ();} catch (IOException e) {throw new RuntimeException ("File upload failed");} finally {if (ftp.isConnected ()) {try {ftp.disconnect () } catch (IOException ioe) {} return url.toString ();} / / create a folder and switch to this folder / / for example: hello/test / / will eventually switch to the test folder and return private void createDir (FTPClient client, String path) throws IOException {String [] dirs = path.split ("/") For (String dir: dirs) {if (StringUtils.isEmpty (dir)) {continue;} if (! client.changeWorkingDirectory (dir)) {client.makeDirectory (dir);} client.changeWorkingDirectory (dir);} 2, application.properties#//ftp server ip address custom.config.file-server.ip=111.229.65.208#String FTP_ADDRESS # / / Port number, custom.config.file-server.port=21#Integer FTP_PORT;#// user name, custom.config.file-ftp-user=root#String FTP_USERNAME;#// password, custom.config.file-ftp-password=123456#String FTP_PASSWORD;#// picture path, custom.config.file-savepath=/upload#String FTP_BASEPATH;3, UploadController

/ * upload file * / String fileUrl = fileUtil.upload (file.getInputStream (), file.getOriginalFilename ())

Get the path: / upload2020/11/23/1606122890137.jpg

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