ftp文件上传及下载工具类
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1、ftp文件上传用例解析(需使用apacher的commons-net-3.3.jar)
public class TestFtp { @Test public void test() throws Exception { FTPClient ftpClient = new FTPClient(); ftpClient.connect("192.168.128.128", 21); ftpClient.login("ftpuser", "123456"); ftpClient.changeWorkingDirectory("/home/ftpuser/www/images"); ftpClient.setFileType(FTP.BINARY_FILE_TYPE); FileInputStream is = new FileInputStream(new File("f:\\eee")); ftpClient.storeFile("hello.jpg", is); ftpClient.logout(); }}
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2、ftp文件上传及下载工具类代码实现:
/** * @author CSDN_LQR * @TODO ftp上传下载工具类 */public class FtpUtil { /** * Description: 向FTP服务器上传文件 * * @param host * FTP服务器hostname * @param port * FTP服务器端口 * @param username * FTP登录账号 * @param password * FTP登录密码 * @param basePath * FTP服务器基础目录 * @param filePath * FTP服务器文件存放路径。例如分日期存放:/2015/01/01。文件的路径为basePath+filePath * @param filename * 上传到FTP服务器上的文件名 * @param input * 输入流 * @return 成功返回true,否则返回false */ public static boolean uploadFile(String host, int port, String username, String password, String basePath, String filePath, String filename, InputStream input) { boolean result = false; FTPClient ftp = new FTPClient(); try { int reply; ftp.connect(host, port); ftp.login(username, password); reply = ftp.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) { ftp.disconnect(); return result; } if (!ftp.changeWorkingDirectory(basePath + filePath)) { String[] dirs = filePath.split("/"); String tempPath = basePath; for (String dir : dirs) { if (null == dir || "".equals(dir)) continue; tempPath += "/" + dir; if (!ftp.changeWorkingDirectory(tempPath)) { if (!ftp.makeDirectory(tempPath)) { return result; } else { ftp.changeWorkingDirectory(tempPath); } } } } ftp.setFileType(FTP.BINARY_FILE_TYPE); if (!ftp.storeFile(filename, input)) { return result; } input.close(); ftp.logout(); result = true; } catch (IOException e) { e.printStackTrace(); } finally { if (ftp.isConnected()) { try { ftp.disconnect(); } catch (IOException ioe) { } } } return result; } /** * Description: 从FTP服务器下载文件 * * @param host * FTP服务器hostname * @param port * FTP服务器端口 * @param username * FTP登录账号 * @param password * FTP登录密码 * @param remotePath * FTP服务器上的相对路径 * @param fileName * 要下载的文件名 * @param localPath * 下载后保存到本地的路径 * @return */ public static boolean downloadFile(String host, int port, String username, String password, String remotePath, String fileName, String localPath) { boolean result = false; FTPClient ftp = new FTPClient(); try { int reply; ftp.connect(host, port); ftp.login(username, password); reply = ftp.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) { ftp.disconnect(); return result; } ftp.changeWorkingDirectory(remotePath); FTPFile[] fs = ftp.listFiles(); for (FTPFile ff : fs) { if (ff.getName().equals(fileName)) { File localFile = new File(localPath + "/" + ff.getName()); OutputStream is = new FileOutputStream(localFile); ftp.retrieveFile(ff.getName(), is); is.close(); } } ftp.logout(); result = true; } catch (IOException e) { e.printStackTrace(); } finally { if (ftp.isConnected()) { try { ftp.disconnect(); } catch (IOException ioe) { } } } return result; } public static void main(String[] args) { try { FileInputStream in = new FileInputStream(new File("D:\\temp\\image\\gaigeming.jpg")); boolean flag = uploadFile("192.168.25.133", 21, "ftpuser", "ftpuser", "/home/ftpuser/www/images", "/2015/01/21", "gaigeming.jpg", in); System.out.println(flag); } catch (FileNotFoundException e) { e.printStackTrace(); } }}
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懒人地址:http://download.csdn.net/detail/csdn_lqr/9692906
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