edtftpjs是國外的一個公司所做。有免費版、企業版之分，還有不用語言的版本。商業版的功能強大，是非常優秀的FTP組建。免費的湊合能用，但是功能相對簡單，實現粗糙。使用起來問題多多。 為了讓免費版的edtftpj工具也具有商業版的一些強勁功能，本人利用業余時間做了擴展，經過測試可以正常使用。其中的算法也許不是最好，也歡迎高人提供更好的算法。 擴展的主要圍繞最常用的功能來進行： 1、增強上傳下載功能，使其支持文件和文件夾，如果是文件夾，上傳下載保持源的目錄結構。 2、增強判斷文件、文件夾是否存在的方法，使得ftp的文件操作如本地文件File操作一樣容易。 3、添加判斷是否為文件、是否為目錄的方法。 4、增加FTP配置管理的工具實現，這個不是主要的，就不貼了。 環境： Java SE 1.5 edtftpjs-2.03 free版 實現思路： 繼承FTP客戶端核心的類com.enterprisedt.net.ftp.FileTransferClient，添加一些更為通用的有效的方法。本身考慮到覆蓋，感覺不妥。就擴展吧！ 實現代碼： import com.enterprisedt.net.ftp.FTPException;
import com.enterprisedt.net.ftp.FileTransferClient;
import com.enterprisedt.net.ftp.WriteMode;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import zzvcom.cms.ccm.commons.StringTookit;

import java.io.File;
import java.io.IOException;
import java.text.ParseException;

/**
* FTP增強工具
*
* @author leizhimin 2008-12-13 16:13:01
*/
public class UltraFTPClient extends FileTransferClient {
????????private static Log log = LogFactory.getLog(UltraFTPClient.class);

????????public UltraFTPClient() {
????????}

????????/**
???????? * 下載文件（夾）,在本地保持FTP上的目錄結構
???????? *
???????? * @param localFolderPath 本地存放文件夾
???????? * @param remotePath????????????遠程文件（夾）路徑
???????? * @param remoteSubPath???? 遠程文件存放相對根目錄
???????? * @throws FTPException
???????? * @throws IOException
???????? */
????????public void ftpDownload(final String localFolderPath, final String remotePath, String remoteSubPath) throws FTPException, IOException, ParseException {
????????????????if (isDir(remoteSubPath)) {
????????????????????????String localPath = localFolderPath + StringTookit.getRelativeRootPath(remoteSubPath, StringTookit.getParentPath(remotePath));
????????????????????????if (!new File(localPath).exists())
????????????????????????????????new File(localPath).mkdirs();
????????????????????????String[] x = directoryNameList(remoteSubPath, false);
????????????????????????for (String fname : x) {
????????????????????????????????String rmFilePath = StringTookit.formatPath(remoteSubPath + "/" + fname);
????????????????????????????????if (isDir(rmFilePath)) {
????????????????????????????????????????ftpDownload(localFolderPath, remotePath, rmFilePath);
????????????????????????????????} else {
????????????????????????????????????????String _localPath = localFolderPath + "/" +
????????????????????????????????????????????????????????StringTookit.getRelativeRootPath(rmFilePath, StringTookit.getParentPath(remotePath));
????????????????????????????????????????downloadFile(_localPath, rmFilePath, WriteMode.OVERWRITE);
????????????????????????????????}
????????????????????????}
????????????????} else if (isFile(remotePath)) {
????????????????????????String localPath = localFolderPath + StringTookit.getRelativeRootPath(remoteSubPath, remotePath);
????????????????????????downloadFile(localPath, remoteSubPath, WriteMode.OVERWRITE);
????????????????} else {
????????????????????????log.error("所下載的文件或文件夾不存在，請檢查！");
????????????????}
????????????????log.info("FTP下載從服務器上的" + remoteSubPath + "下載到本地" + localFolderPath + "結束！");
????????}

????????/**
???????? * 上傳文件（夾）,在FTP上保持本地的目錄結構
???????? *
???????? * @param localFile???????? 本地文件
???????? * @param localFilePath 本地文件的路徑
???????? * @param remoteSubPath 遠程文件存放相對根目錄
???????? * @throws IOException
???????? * @throws FTPException
???????? */
????????public void ftpUpload(File localFile, final String localFilePath, final String remoteSubPath) throws IOException, FTPException {
????????????????if (localFile.isDirectory()) {
????????????????????????for (File file : localFile.listFiles()) {
????????????????????????????????if (file.isDirectory()) {
????????????????????????????????????????String remotePath = StringTookit.formatPath(remoteSubPath) + StringTookit.getRelativeRootPath(file.getPath(), StringTookit.getParentPath(localFilePath));
????????????????????????????????????????log.info(remotePath);
????????????????????????????????????????if (!isExist(remotePath)) createDirectory(remotePath);
????????????????????????????????????????ftpUpload(file, localFilePath, remoteSubPath);
????????????????????????????????} else {
????????????????????????????????????????String remotePath = StringTookit.formatPath(remoteSubPath) +
????????????????????????????????????????????????????????StringTookit.getRelativeRootPath(file.getPath(), StringTookit.getParentPath(localFilePath));
????????????????????????????????????????uploadFile(file.getPath(), remotePath, WriteMode.APPEND);
????????????????????????????????}
????????????????????????}
????????????????} else if (localFile.isFile()) {
????????????????????????String remotePath = StringTookit.formatPath(remoteSubPath) +
????????????????????????????????????????StringTookit.getRelativeRootPath(localFile.getPath(), StringTookit.getParentPath(localFilePath));
????????????????????????if (!isExist(StringTookit.getParentPath(remotePath)))
????????????????????????????????createDirectory(StringTookit.getParentPath(remotePath));
????????????????????????System.out.println(remotePath);
????????????????????????uploadFile(localFile.getPath(), remotePath, WriteMode.APPEND);
????????????????}
????????????????log.info("FTP上傳" + localFile.getPath() + "到" + remoteSubPath + "目錄下結束！");
????????}

????????/**
???????? * @param remotePath 遠程文件（夾）路徑
???????? * @return 遠程的文件（夾）資源是否存在
???????? */
????????public boolean isExist(String remotePath) {
????????????????boolean flag = true;
????????????????try {
????????????????????????directoryList(remotePath);
????????????????} catch (Exception e) {
????????????????????????flag = false;
????????????????}
????????????????return flag;
????????}

????????/**
???????? * @param remotePath 遠程文件（夾）路徑
???????? * @return 當遠程資源存在且為文件時返回ture，否則返回false
???????? */

????????public boolean isFile(String remotePath) {
????????????????try {
????????????????????????int size = directoryList(remotePath).length;
????????????????????????if (size >= 0) {
????????????????????????????????if (exists(remotePath)) {
????????????????????????????????????????return true;
????????????????????????????????}
????????????????????????}
????????????????} catch (Exception e) {
????????????????}
????????????????return false;
????????}

????????/**
???????? * @param remotePath 遠程文件（夾）路徑
???????? * @return 當遠程資源存在且為文件夾時返回ture，否則返回false
???????? */
????????public boolean isDir(String remotePath) {
????????????????try {
????????????????????????int size = directoryList(remotePath).length;
????????????????????????if (size >= 0) {
????????????????????????????????if (exists(remotePath)) {
????????????????????????????????????????return false;
????????????????????????????????} else {
????????????????????????????????????????return true;
????????????????????????????????}
????????????????????????}
????????????????} catch (Exception e) {
????????????????}
????????????????return false;
????????}
}
為了支持目錄運算與不同操作系統的兼容性，寫了一個文件路徑處理工具。有了這一整套的工具后，上面的工作才能更清晰的去做。 /**
* 字符串工具箱
*
* @author leizhimin 2008-12-15 22:40:12
*/
public final class StringTookit {
????????/**
???????? * 將一個字符串的首字母改為大寫或者小寫
???????? *
???????? * @param srcString 源字符串
???????? * @param flag????????????大小寫標識，ture小寫，false大些
???????? * @return 改寫后的新字符串
???????? */
????????public static String toLowerCaseInitial(String srcString, boolean flag) {
????????????????StringBuilder sb = new StringBuilder();
????????????????if (flag) {
????????????????????????sb.append(Character.toLowerCase(srcString.charAt(0)));
????????????????} else {
????????????????????????sb.append(Character.toUpperCase(srcString.charAt(0)));
????????????????}
????????????????sb.append(srcString.substring(1));
????????????????return sb.toString();
????????}

????????/**
???????? * 將一個字符串按照句點（.）分隔，返回最后一段
???????? *
???????? * @param clazzName 源字符串
???????? * @return 句點（.）分隔后的最后一段字符串
???????? */
????????public static String getLastName(String clazzName) {
????????????????String[] ls = clazzName.split("//.");
????????????????return ls[ls.length - 1];
????????}

????????/**
???????? * 格式化文件路徑，將其中不規范的分隔轉換為標準的分隔符,并且去掉末尾的"/"符號。
???????? *
???????? * @param path 文件路徑
???????? * @return 格式化后的文件路徑
???????? */
????????public static String formatPath(String path) {
????????????????String reg = "+|/+";
????????????????String temp = path.trim().replaceAll(reg, "/");
????????????????if (temp.endsWith("/")) {
????????????????????????return temp.substring(0, temp.length() - 1);
????????????????}
????????????????return temp;
????????}

????????/**
???????? * 獲取文件父路徑
???????? *
???????? * @param path 文件路徑
???????? * @return 文件父路徑
???????? */
????????public static String getParentPath(String path) {
????????????????return new File(path).getParent();
????????}

????????/**
???????? * 獲取相對路徑
???????? *
???????? * @param fullPath 全路徑
???????? * @param rootPath 根路徑
???????? * @return 相對根路徑的相對路徑
???????? */
????????public static String getRelativeRootPath(String fullPath, String rootPath) {
????????????????String relativeRootPath = null;
????????????????String _fullPath = formatPath(fullPath);
????????????????String _rootPath = formatPath(rootPath);

????????????????if (_fullPath.startsWith(_rootPath)) {
????????????????????????relativeRootPath = fullPath.substring(_rootPath.length());
????????????????} else {
????????????????????????throw new RuntimeException("要處理的兩個字符串沒有包含關系，處理失敗！");
????????????????}
????????????????if (relativeRootPath == null) return null;
????????????????else
????????????????????????return formatPath(relativeRootPath);
????????}
} FTP客戶端配置工具： 一個好的工具，配置也很講究，這里也不例外，經過精心處理，FTP服務器配置變得輕松自如： import com.enterprisedt.net.ftp.FTPConnectMode;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import zzvcom.cms.ccm.commons.JavaXmlTookit;
import zzvcom.cms.ccm.commons.SysParamsTookit;

/**
* FTP配置
*
* @author leizhimin 2008-12-5 22:49:39
*/
public class FtpServerConfigration {
????????private static final Log log = LogFactory.getLog(FtpServerConfigration.class);
????????private String username;????????????????//用戶名
????????private String password;????????????????//密碼
????????private String ip;????????????????????????????//ip
????????private Integer port;???????????????????? //端口
????????private Integer timeout;????????????????//超時時間
????????private Integer buffersize;???????? //緩存大小
????????private Integer notifytime;???????? //通知時間
????????private String connectMode;???????? //連接模式
????????private String encoding;????????????????//編碼方式

????????public FtpServerConfigration(String username, String password, String ip, Integer port) {
????????????????this.username = username;
????????????????this.password = password;
????????????????this.ip = ip;
????????????????this.port = port;
????????????????this.timeout = Integer.valueOf(SysParamsTookit.getProperty("timeout", "36000000"));
????????????????this.buffersize = Integer.valueOf(SysParamsTookit.getProperty("buffersize", "2048000"));
????????????????this.notifytime = Integer.valueOf(SysParamsTookit.getProperty("notifytime", "5000"));
????????????????this.connectMode = SysParamsTookit.getProperty("connectMode", "PASV");
????????????????this.encoding = SysParamsTookit.getProperty("encoding", "GBK");
????????}

????????public FtpServerConfigration(String ftpConfigXml) {
????????????????FtpServerConfigration config = (FtpServerConfigration) JavaXmlTookit.xml2Java(ftpConfigXml, FtpServerConfigration.class);
????????????????if (StringUtils.isBlank(config.getUsername())
????????????????????????????????|| StringUtils.isBlank(config.getPassword())
????????????????????????????????|| StringUtils.isBlank(config.getIp())
????????????????????????????????|| config.getPort() == null) {
????????????????????????log.error("FTP最基本的配置屬性（username、password、ip、port）不能為空，請檢查！");
????????????????} else {
????????????????????????this.username = config.getUsername();
????????????????????????this.password = config.getPassword();
????????????????????????this.ip = config.getIp();
????????????????????????this.port = config.getPort();
????????????????}
????????????????if (config.getTimeout() == null)
????????????????????????this.timeout = Integer.valueOf(SysParamsTookit.getProperty("timeout", "36000000"));
????????????????if (config.getBuffersize() == null)
????????????????????????this.buffersize = Integer.valueOf(SysParamsTookit.getProperty("buffersize", "2048000"));
????????????????if (config.getNotifytime() == null)
????????????????????????this.notifytime = Integer.valueOf(SysParamsTookit.getProperty("notifytime", "5000"));
????????????????if (StringUtils.isBlank(config.getConnectMode()))
????????????????????????this.connectMode = SysParamsTookit.getProperty("connectMode", "PASV");
????????????????if (StringUtils.isBlank(config.getEncoding()))
????????????????????????this.encoding = SysParamsTookit.getProperty("encoding", "GBK");
????????}

????????/**
???????? * 獲取當前FTP連接配置
???????? *
???????? * @return 當前FTP連接配置
???????? */
????????public FtpServerConfigration getConfigration() {
????????????????return this;
????????}

????????/**
???????? * 構建FTP客戶端連接，并進行連接
???????? *
???????? * @return FTP客戶端連接
???????? * @throws Exception 當構建客戶端失敗時拋出
???????? */
????????public UltraFTPClient buildFtpClient() throws Exception {
????????????????UltraFTPClient client = new UltraFTPClient();
????????????????try {
????????????????????????client.setUserName(username);
????????????????????????client.setPassword(password);
????????????????????????client.setRemoteHost(ip);
????????????????????????client.setRemotePort(port);
????????????????????????client.setTimeout(timeout);
????????????????????????client.getAdvancedSettings().setTransferBufferSize(buffersize);
????????????????????????client.getAdvancedSettings().setTransferNotifyInterval(notifytime);
????????????????????????client.getAdvancedSettings().setControlEncoding(encoding);?
???????????????????????//?client.setEventListener(new UploadListener(client));????????????????//設置事件監聽器
????????????????????????if (connectMode.equalsIgnoreCase("ACTIVE")) {
????????????????????????????????client.getAdvancedFTPSettings().setConnectMode(FTPConnectMode.ACTIVE); //設置為被動模式
????????????????????????} else if (connectMode.equalsIgnoreCase("PASV")) {
????????????????????????????????client.getAdvancedFTPSettings().setConnectMode(FTPConnectMode.PASV); //設置為被動模式
????????????????????????} else {
????????????????????????????????log.error("標識為" + connectMode + "的FTP連接模式配置錯誤，連接模式僅有兩種ACTIVE和PASV，請檢查！");
????????????????????????}
????????????????????????client.connect();
????????????????????????log.info("FTP連接成功！詳細信息(遠程主機：" + ip + "，用戶名：" + username + ")");
????????????????} catch (Exception e) {
????????????????????????log.info("FTP創建連接發生異常！", e);
????????????????????????throw e;
????????????????}
????????????????return client;
????????}

????????public String getUsername() {
????????????????return username;
????????}

????????public void setUsername(String username) {
????????????????this.username = username;
????????}

????????public String getPassword() {
????????????????return password;
????????}

????????public void setPassword(String password) {
????????????????this.password = password;
????????}

????????public String getIp() {
????????????????return ip;
????????}

????????public void setIp(String ip) {
????????????????this.ip = ip;
????????}

????????public Integer getPort() {
????????????????return port;
????????}

????????public void setPort(Integer port) {
????????????????this.port = port;
????????}

????????public Integer getTimeout() {
????????????????return timeout;
????????}

????????public void setTimeout(Integer timeout) {
????????????????this.timeout = timeout;
????????}

????????public Integer getBuffersize() {
????????????????return buffersize;
????????}

????????public void setBuffersize(Integer buffersize) {
????????????????this.buffersize = buffersize;
????????}

????????public Integer getNotifytime() {
????????????????return notifytime;
????????}

????????public void setNotifytime(Integer notifytime) {
????????????????this.notifytime = notifytime;
????????}

????????public String getConnectMode() {
????????????????return connectMode;
????????}

????????public void setConnectMode(String connectMode) {
????????????????this.connectMode = connectMode;
????????}

????????public String getEncoding() {
????????????????return encoding;
????????}

????????public void setEncoding(String encoding) {
????????????????this.encoding = encoding;
????????}
} 系統默認的FtP參數配置： ### FTP默認配置參數 ###
# FTP連接模式：ACTIVE,PASV為兩種連接模式
#port=21
ftp.timeout=360000
ftp.buffersize=20480
ftp.notifytime=5000
ftp.connectMode=PASV
ftp.encoding=GBK
進行測試： 這里只給出測試大概過程： 1、創建一個FTP配置對象，并從FTP配置對象構建一個增強的FTP客戶端對象。 UltraFTPClient client = new FtpServerConfigration("testuser", "123456", "192.168.0.2", 21).buildFtpClient(); 2、根據有了客戶端后，就可以調用增強的和原有的任何方法，來完成你想要的FTP操作。 3、操作完成后關閉FTP連接。 client.disconnect(); 遺留問題： FTP的寫模式在下載的時候無法指定，指定為WriteMode.APPEND（追加）是最理想的，但是現在無法做到，只要設置就出錯。也許是因為我服務器配置的問題，原因不明。

轉載于:https://www.cnblogs.com/cuker919/archive/2010/06/24/4878614.html

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