自己写的利用apache的net包写的ftp的上传、下载功能,可以上单个文件、文件夹,下载单个文件及文件夹整个目录,并且解决了文件、文件夹汉字问题,经过自己的正式测试。
不讲废话了,直接上代码,愿给需要的朋友提供个帮助。
import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.Properties; import org.apache.commons.lang.StringUtils; import org.apache.commons.net.ftp.FTP; import org.apache.commons.net.ftp.FTPClient; import org.apache.commons.net.ftp.FTPClientConfig; import org.apache.commons.net.ftp.FTPFile; import org.apache.commons.net.ftp.FTPReply; import org.d6.utils.AppUtils; /** * @author jjl * */ public class FtpUtil { static String ftpUrl = null; // ftp 服务器路径 static int ftpPort = 21; // ftp 服务器端口 static String ftpUserName = null; // ftp 服务器用户名 static String ftpPassword = null; // ftp 服务器密码 static String encoding = null; static String serverLanguageCode = FTP.DEFAULT_CONTROL_ENCODING; static int timeout = 60000; // 配置文件路径 static String configFile = "ftp.properties"; static FTPClient ftpClient = null; /** * 创建FTPClient * * @throws Exception */ private static void createFtpClient() throws Exception { if (ftpClient == null) { ftpClient = new FTPClient(); setConnectConfig(); connectFtp(ftpClient); } } /** * 关闭FTPClient * * @throws Exception */ private static void closeFtpClient() throws Exception { if (ftpClient != null) { ftpClient.logout(); if (ftpClient.isConnected()) { ftpClient.disconnect(); } ftpClient = null; } } /** * ftp工具连接 * * @param ftpClient * @return * @throws Exception */ public static boolean connectFtp(FTPClient ftpClient) throws Exception { // 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(ftpUrl, ftpPort); getFtpConfig(); // 返回登录情况 boolean isConnect = ftpClient.login(ftpUserName, ftpPassword); ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); // ftpClient.enterLocalPassiveMode(); ftpClient.setFileTransferMode(FTPClient.STREAM_TRANSFER_MODE); ftpClient.setControlEncoding(encoding); // 设置连接时间 ftpClient.setDataTimeout(timeout); // 返回代码 int reply = ftpClient.getReplyCode(); if (isConnect && FTPReply.isPositiveCompletion(reply)) { return true; } return false; } /** * 上传文件 * * @param localPath * 本地文件路径 * @param filename * 本地文件名 * @param remotePath * 服务器文件路径 * @return 成功返回true,否则返回false * @throws Exception */ public static boolean uploadFile(File file, String remotePath) throws Exception { boolean success = false; try { // 创建FTPClient createFtpClient(); // 判断是文件,还是文件目录 if (file.isDirectory()) { success = uploadAll(file, remotePath + File.separator + file.getName()); } else { success = upload(file, remotePath); } // 关闭连接 closeFtpClient(); } catch (IOException e) { e.printStackTrace(); } // 返回 return success; } /** * 上传文件 * * @param file * @param remotePath * @return * @throws Exception */ private static boolean upload(File file, String remotePath) throws Exception { boolean success; // 文件 FileInputStream inputStream = new FileInputStream(file); // 切换ftp工作目录 changeWorkingDirectory(remotePath); // 上传文件 success = ftpClient.storeFile(encodingGBKToISO8859(file.getName()), inputStream); inputStream.close(); return success; } /** * 上传文件 * * @param localPath * 本地文件路径 * @param filename * 本地文件名 * @param remotePath * 服务器文件路径 * @return * @throws Exception */ public static boolean uploadFile(String localPath, String filename, String remotePath) throws Exception { File file = new File(localPath + File.separator + filename); return uploadFile(file, remotePath); } /** * 上传文件目录 * * @param file * @param remotePath * @return * @throws Exception */ public static boolean uploadDirectory(String localPath, String remotePath) throws Exception { return uploadDirectory(new File(localPath), remotePath); } /** * 上传文件目录 * * @param file * @param remotePath * @return * @throws Exception */ public static boolean uploadDirectory(File file, String remotePath) throws Exception { boolean success = false; // 创建FTPClient createFtpClient(); success = uploadAll(file, remotePath); // 关闭连接 closeFtpClient(); return success; } /** * 上传 * * @param file * @param remotePath * @throws Exception * @throws FileNotFoundException * @throws IOException */ private static boolean uploadAll(File file, String remotePath) throws Exception { boolean success = false; // 得到文件列表 File[] fileList = file.listFiles(); for (File uploadFile : fileList) { // 循环子目录 if (uploadFile.isDirectory()) { ftpClient.changeWorkingDirectory(remotePath); ftpClient.makeDirectory(uploadFile.getName()); success = uploadAll(uploadFile, remotePath + File.separator + uploadFile.getName()); } else { // 上传文件 success = upload(uploadFile, remotePath); } } return success; } /** * 下载文件目录下所有文件 * * @param localPath * 本地文件路径 * @param fileName * 本地文件名 * @param remotePath * 服务器路径 * @return 成功返回true,否则返回false * @throws Exception */ public static boolean downloadDirectory(String localPath, String remotePath) throws Exception { boolean success = false; try { // 创建FTPClient createFtpClient(); success = downloadAll(localPath, remotePath); // 关闭连接FTPClient closeFtpClient(); } catch (IOException e) { e.printStackTrace(); } return success; } /** * 下载文件目录下的所有文件 * * @param localPath * @param remotePath * @param success * @return * @throws IOException * @throws Exception * @throws FileNotFoundException */ private static boolean downloadAll(String localPath, String remotePath) throws Exception { boolean success = false; // 切换ftp工作目录 changeWorkingDirectory(remotePath); // 取出下载文件 FTPFile[] ftpFiles = ftpClient.listFiles(); for (FTPFile ftpFile : ftpFiles) { // 过滤文件名不正确的文件 if (ftpFile.getName().equals(".") || ftpFile.getName().equals("..")) { continue; } if (ftpFile.isDirectory()) { // 创建目录 File fileDir = new File(localPath + File.separator + ftpFile.getName()); if (!fileDir.exists()) { fileDir.mkdirs(); } // 下载文件 success = downloadAll(localPath + File.separator + ftpFile.getName(), remotePath + File.separator + ftpFile.getName()); } else { // 切换ftp工作目录 changeWorkingDirectory(remotePath); // 下载文件 success = download(localPath, ftpFile); } } return success; } /** * 切换ftp工作目录 * * @param remotePath * @throws IOException */ private static void changeWorkingDirectory(String remotePath) throws IOException { // 转移到FTP服务器目录 ftpClient.changeWorkingDirectory("/"); if (StringUtils.isNotBlank(remotePath)) { ftpClient.changeWorkingDirectory(remotePath); } } /** * @param localPath * @param ftpFile * @return * @throws Exception */ private static boolean download(String localPath, FTPFile ftpFile) throws Exception { boolean success; // 文件目录不存在创建文件 File fileDir = new File(localPath); if (!fileDir.exists()) { fileDir.mkdirs(); } File localFile = new File(localPath + File.separator + ftpFile.getName()); OutputStream is = new FileOutputStream(localFile); // 下载文件 success = ftpClient.retrieveFile( encodingGBKToISO8859(ftpFile.getName()), is); is.close(); return success; } /** * 下载文件 * * @param localPath * 本地文件路径 * @param fileName * 本地文件名 * @param remotePath * 服务器路径 * @return 成功返回true,否则返回false * @throws Exception */ public static boolean downloadFile(String localPath, String fileName, String remotePath) throws Exception { boolean success = false; try { // 创建FTPClient createFtpClient(); // 转移到FTP服务器目录 if (StringUtils.isNotBlank(remotePath)) { ftpClient.changeWorkingDirectory(remotePath); } // 取出下载文件 FTPFile[] ftpFiles = ftpClient.listFiles(); for (FTPFile ftpFile : ftpFiles) { String ftpFileName = ftpFile.getName(); if (ftpFileName.equals(fileName)) { success = download(localPath, ftpFile); break; } } // 关闭连接FTPClient closeFtpClient(); } catch (IOException e) { e.printStackTrace(); } return success; } /** * 删除一个文件 * * @throws Exception */ public static boolean deleteFile(String filename) throws Exception { boolean flag = true; try { // 创建FTPClient createFtpClient(); // 删除文件 flag = ftpClient.deleteFile(filename); } catch (IOException ioe) { ioe.printStackTrace(); } finally { // 关闭连接FTPClient closeFtpClient(); } return flag; } /** * 删除目录 * * @throws Exception */ public static void deleteDirectory(String pathname) throws Exception { try { // 创建FTPClient createFtpClient(); File file = new File(pathname); if (!file.isDirectory()) { deleteFile(pathname); } ftpClient.removeDirectory(pathname); } catch (IOException ioe) { ioe.printStackTrace(); } finally { // 关闭连接FTPClient closeFtpClient(); } } /** * 设置参数 * * @param configFile * --参数的配置文件 */ private static void setConnectConfig() { Properties property = new Properties(); BufferedInputStream bis = null; try { // 读取配置文件 File file = new File(configFile); bis = new BufferedInputStream(new FileInputStream(file)); property.load(bis); // 设置文件信息 ftpUserName = property.getProperty("ftp.userName"); ftpPassword = property.getProperty("ftp.password"); ftpUrl = property.getProperty("ftp.url"); ftpPort = Integer.parseInt(property.getProperty("ftp.port")); encoding = property.getProperty("ftp.encoding"); serverLanguageCode = property.getProperty("ftp.serverLanguageCode"); // 关闭文件 if (bis != null){ bis.close(); } } catch (FileNotFoundException e1) { System.out.println("配置文件 " + configFile + " 不存在!"); } catch (IOException e) { System.out.println("配置文件 " + configFile + " 无法读取!"); } } /** * 重命名文件 * * @param oldName * 原文件名 * @param newName * 新文件名 * @throws Exception */ public static void renameFile(String oldName, String newName) throws Exception { try { // 创建FTPClient createFtpClient(); // 重命名 ftpClient.rename(oldName, newName); } catch (IOException ioe) { ioe.printStackTrace(); } finally { // 关闭连接FTPClient closeFtpClient(); } } /** * 设置FTP客服端的配置 * * @return ftpConfig */ private static FTPClientConfig getFtpConfig() { // FTPClientConfig.SYST_UNIX FTPClientConfig ftpConfig = new FTPClientConfig(FTPClientConfig.SYST_NT); ftpConfig.setServerLanguageCode(serverLanguageCode); return ftpConfig; } /** * 将ISO-8859-1编码转为 GBK * * @param obj * @return "" * @throws Exception */ private static String encodingToGBK(Object obj) throws Exception { if (obj != null) { return new String(obj.toString().getBytes("iso-8859-1"), encoding); } return null; } /** * 将 GBK编码转为ISO-8859-1 * * @param obj * @return "" * @throws Exception */ private static String encodingGBKToISO8859(Object obj) throws Exception { if (obj != null) { return new String(obj.toString().getBytes(encoding), "iso-8859-1"); } return null; } /** * @param args */ public static void main(String[] args) { boolean success = false; try { java.text.SimpleDateFormat dateFormat = new java.text.SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); // success = FtpUtil.uploadFile("D:\\ftp", "中文的.docx", "temp"); // System.out.println(success); // // success = FtpUtil.uploadFile(new File("D:\\ftp\\abc.txt"), // "temp"); // System.out.println(success); // success = FtpUtil.uploadDirectory("D:\\ftp", "temp"); // System.out.println(success); System.out.println(dateFormat.format(new java.util.Date())); success = FtpUtil.downloadFile("d:\\", "test.zip", "temp"); System.out.println(dateFormat.format(new java.util.Date())); System.out.println(success); // success = FtpUtil.downloadDirectory("d:\\ftp\\a2", "temp"); // System.out.println(success); } catch (Exception e) { System.out.println(e.getMessage()); } } }