java 使用apache的net包ftp上传文件详解编程语言

import org.apache.commons.net.ftp.FTPClient; import org.apache.commons.net.ftp.FTPFile; import org.apache.commons.net.ftp.FTPReply; public class JFtpApche privatestatic FTPClient ftpClient = new FTPClient(); privatestatic String encoding = System.getProperty("file.encoding"); publicstatic boolean uploadFile(String url, int port, String username,String password, String path, String filename, InputStream input) boolean result = false; try int reply; // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器 ftpClient.connect(url); // ftp.connect(url, port);// 连接FTP服务器 // 登录 ftpClient.login(username, password); ftpClient.setControlEncoding(encoding); // 检验是否连接成功 reply = ftpClient.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) System.out.println("连接失败"); ftpClient.disconnect(); return result; // 转移工作目录至指定目录下 boolean change = ftpClient.changeWorkingDirectory(path); ftpClient.setFileType(FTP.BINARY_FILE_TYPE); if (change) result = ftpClient.storeFile(newString(filename.getBytes(encoding), "iso-8859-1"), input); if (result) System.out.println("上传成功!"); input.close(); ftpClient.logout(); } catch (IOException e) e.printStackTrace(); } finally if (ftpClient.isConnected()) try ftpClient.disconnect(); } catch (IOException ioe) return result; public voidtestUpLoadFromDisk() try FileInputStream in = new FileInputStream(newFile("./data/se/1-2015-02-03-14.list")); //boolean flag = uploadFile("127.0.0.1", 21, "zlb", "123", "/","哈哈.txt", in); boolean flag = uploadFile("10.10.2.55", 21, "anonymous", "", "/","1-2015-02-03-14.list", in); System.out.println(flag); } catch (FileNotFoundException e) e.printStackTrace(); publicstatic boolean downFile(String url, int port, String username,String password, String remotePath, String fileName, StringlocalPath) boolean result = false; try int reply; ftpClient.setControlEncoding(encoding); // FTPClientConfig conf = new // FTPClientConfig(FTPClientConfig.SYST_NT); // conf.setServerLanguageCode("zh"); ftpClient.connect(url, port); // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器 ftpClient.login(username, password);// 登录 // 设置文件传输类型为二进制 ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); // 获取ftp登录应答代码 reply = ftpClient.getReplyCode(); // 验证是否登陆成功 if (!FTPReply.isPositiveCompletion(reply)) ftpClient.disconnect(); System.err.println("FTP server refused connection."); return result; // 转移到FTP服务器目录至指定的目录下 ftpClient.changeWorkingDirectory(newString(remotePath.getBytes(encoding), "iso-8859-1")); // 获取文件列表 FTPFile[] fs = ftpClient.listFiles(); for (FTPFile ff : fs) if (ff.getName().equals(fileName)) File localFile = new File(localPath + "/" + ff.getName()); OutputStream is = new FileOutputStream(localFile); ftpClient.retrieveFile(ff.getName(), is); is.close(); ftpClient.logout(); result = true; } catch (IOException e) e.printStackTrace(); } finally if (ftpClient.isConnected()) try ftpClient.disconnect(); } catch (IOException ioe) return result; public voidtestDownFile() try boolean flag = downFile("127.0.0.1", 21, "zlb", "123", "/","contact.txt", "D:/"); System.out.println(flag); } catch (Exception e) e.printStackTrace(); publicstatic void main(String[] args) JFtpApche fa = new JFtpApche(); //fa.testDownFile(); fa.testUpLoadFromDisk(); }

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/10445.html

cgojava