jar:
commons-io-2.4.jar
commons-net-3.3.jarCode：import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.SocketException;import java.util.List;import org.apache.commons.io.IOUtils;import org.apache.commons.net.ftp.FTP;import org.apache.commons.net.ftp.FTPClient;import org.apache.commons.net.ftp.FTPReply;import entity.Config;public class FTPUtil { private Config _config; public FTPUtil(Config config) { this._config = config; } public void download(String remoteDir, List remoteFileNames, String localDir) throws IOException{ FTPClient ftp = new FTPClient(); try { connectServer(ftp); configFTPClient(ftp); ftp.changeWorkingDirectory(remoteDir); for (String remote : remoteFileNames) { long begin=System.currentTimeMillis(); OutputStream local = new FileOutputStream(new File(localDir,remote)); retrieveFile的第一个参数需要是 ISO-8859-1 编码 //new String(fileName.getBytes("GBK"),"ISO-8859-1") boolean result = ftp.retrieveFile(remote, local); long end=System.currentTimeMillis(); System.out.println(remote+":"+(end-begin)+"ms"); System.out.println("result:"+result); local.flush(); local.close(); } } finally { closeFtpClient(ftp); } } public void upload(String remoteDir,String localDir, List localFileNames) throws IOException{ FTPClient ftp = new FTPClient(); try { connectServer(ftp); configFTPClient(ftp); ftp.changeWorkingDirectory(remoteDir); for (String localFileName : localFileNames) { long begin=System.currentTimeMillis(); InputStream local=new FileInputStream(new File(localDir,localFileName)); boolean result = ftp.storeFile(localFileName,local); long end=System.currentTimeMillis(); System.out.println(localFileName+":"+(end-begin)+"ms"); System.out.println("result:"+result); IOUtils.closeQuietly(local); } } finally { closeFtpClient(ftp); } } private void closeFtpClient(FTPClient ftp) { if (ftp.isConnected()) { try { ftp.logout(); ftp.disconnect(); } catch (IOException ioe) { System.out.println("Fail to close."); } } } private void configFTPClient(FTPClient ftp) throws IOException { final int _1MB=1024; 如果缺省该句 传输txt正常 但图片和其他格式的文件传输可能会出现未知异常 ftp.setFileType(FTP.BINARY_FILE_TYPE); ftp.enterLocalPassiveMode(); System.out.println("ftp.getBufferSize():"+ftp.getBufferSize()); ftp.setBufferSize(_1MB); } private void connectServer(FTPClient ftp) throws SocketException, IOException { int reply; ftp.connect(_config.getHostName(), _config.getPort()); ftp.login(_config.getUsername(), _config.getPassword()); // After connection attempt, you should check the reply code to verify // success. reply = ftp.getReplyCode(); // 以2开头的返回值就会为真 if (!FTPReply.isPositiveCompletion(reply)) { ftp.disconnect(); System.err.println("FTP server refused connection."); throw new RuntimeException("FTP server refused connection:" + ftp.getReplyString()); } } } package switchplat.entity;import java.util.List;import java.util.Map;public class Config { public String getHostName() { return this._hostName; } public void setHostName(String hostName) { this._hostName = hostName; } public int getPort() { return this._port; } public void setPort(int port) { this._port = port; } public String getUsername() { return this._username; } public void setUsername(String username) { this._username = username; } public String getPassword() { return this._password; } public void setPassword(String password) { this._password = password; } public Map > getFilesToDownload() { return this._filesToDownload; } public void setFilesToDownload(Map > filesToDownload) { this._filesToDownload = filesToDownload; } public Map > getFilesToUpload() { return this._filesToUpload; } public void setFilesToUpload(Map > filesToUpload) { this._filesToUpload = filesToUpload; } private String _hostName; private int _port=21; private String _username; private String _password; private Map > _filesToDownload; private Map > _filesToUpload; }
Extension Part:
private String userName = "anonymous";//匿名登录，空字符串不行
private String password = "";//随便一个地址，我胡乱写一个也可以运行的默认情况下，FtpClient使用的是UTF_8字符集作为服务器通讯的编码集。而FTP服务器SERV-U在windowsXP上，使用GBK字符集作为服务器通讯。// 下面三行代码必须要，而且不能改变编码格式，否则不能正确下载中文文件
ftp.setControlEncoding("GBK");FTPClientConfig conf = new FTPClientConfig(FTPClientConfig.SYST_NT);conf.setServerLanguageCode("zh"); http://yijingjia.blog.sohu.com/170731845.htmlhttp://www.open-open.com/lib/view/open1329922375281.html
/** * 重命名文件 * * @param oldFileName --原文件名 * @param newFileName --新文件名 */ public static void renameFile(String oldFileName, String newFileName) { try { connectServer(); ftpClient.rename(oldFileName, newFileName); } catch (IOException ioe) { ioe.printStackTrace(); } } /** * 设置FTP客服端的配置--一般可以不设置 * * @return ftpConfig */ private static FTPClientConfig getFtpConfig() { FTPClientConfig ftpConfig = new FTPClientConfig(FTPClientConfig.SYST_UNIX); ftpConfig.setServerLanguageCode(FTP.DEFAULT_CONTROL_ENCODING); return ftpConfig; } /** * 在服务器上创建一个文件夹 * * @param dir 文件夹名称，不能含有特殊字符，如 \ 、/ 、: 、* 、?、 "、 <、>... */ public static boolean makeDirectory(String dir) { connectServer(); boolean flag = true; try { // System.out.println("dir=======" dir); flag = ftpClient.makeDirectory(dir); if (flag) { System.out.println( "make Directory " + dir + " succeed"); } else { System.out.println( "make Directory " + dir + " false"); } } catch (Exception e) { e.printStackTrace(); } return flag; }
/** * 连接到服务器 * * @return true 连接服务器成功，false 连接服务器失败 */ public static boolean connectServer() { boolean flag = true; if (ftpClient == null) { int reply; try { setArg(configFile); ftpClient = new FTPClient(); ftpClient.setControlEncoding( "GBK"); ftpClient.setDefaultPort(port); ftpClient.configure(getFtpConfig()); ftpClient.connect(ip); ftpClient.login(userName, password); ftpClient.setDefaultPort(port); //System.out.print(ftpClient.getReplyString()); reply = ftpClient.getReplyCode(); ftpClient.setDataTimeout(120000); if (!FTPReply.isPositiveCompletion(reply)) { ftpClient.disconnect(); System.err.println( "FTP server refused connection."); // logger.debug("FTP 服务拒绝连接！"); flag = false; } // System.out.println(i); i++; } catch (SocketException e) { flag = false; e.printStackTrace(); System.err.println( "登录ftp服务器 " + ip + " 失败,连接超时！"); } catch (IOException e) { flag = false; e.printStackTrace(); System.err.println( "登录ftp服务器 " + ip + " 失败，FTP服务器无法打开！"); } } return flag; } /** * 删除一个文件 */ public static boolean deleteFile(String filename) { boolean flag = true; try { connectServer(); flag = ftpClient.deleteFile(filename); if (flag) { System.out.println( "删除文件成功！"); } else { System.out.println( "删除文件失败！"); } } catch (IOException ioe) { ioe.printStackTrace(); } return flag; } /** * 删除目录 */ public static void deleteDirectory(String pathname) { try { connectServer(); File file = new File(pathname); if (file.isDirectory()) { File file2[] = file.listFiles(); } else { deleteFile(pathname); } ftpClient.removeDirectory(pathname); } catch (IOException ioe) { ioe.printStackTrace(); } } /** * 删除空目录 */ public static void deleteEmptyDirectory(String pathname) { try { connectServer(); ftpClient.removeDirectory(pathname); } catch (IOException ioe) { ioe.printStackTrace(); } } /** * 列出服务器上文件和目录 * * @param regStr --匹配的正则表达式 */ public static void listRemoteFiles(String regStr) { connectServer(); try { String files[] = ftpClient.listNames(regStr); if (files == null || files.length == 0) System.out.println( "没有任何文件!"); else { for ( int i = 0; i < files.length; i++) { System.out.println(files[i]); } } } catch (Exception e) { e.printStackTrace(); } } /** * 列出Ftp服务器上的所有文件和目录 */ public static void listRemoteAllFiles() { connectServer(); try { String[] names = ftpClient.listNames(); for ( int i = 0; i < names.length; i++) { System.out.println(names[i]); } } catch (Exception e) { e.printStackTrace(); } } http://www.open-open.com/lib/view/open1325816800031.html
1.支持上传下载。支持断点续传
2.支持进度汇报3.支持对于中文目录及中文文件创建的支持。Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.io.RandomAccessFile; import open.mis.data.DownloadStatus; import open.mis.data.UploadStatus; import org.apache.commons.net.PrintCommandListener; import org.apache.commons.net.ftp.FTP; import org.apache.commons.net.ftp.FTPClient; import org.apache.commons.net.ftp.FTPFile; import org.apache.commons.net.ftp.FTPReply; /** *//** * 支持断点续传的FTP实用类 * @author BenZhou http://www.bt285.cn * @version 0.1 实现基本断点上传下载 * @version 0.2 实现上传下载进度汇报 * @version 0.3 实现中文目录创建及中文文件创建，添加对于中文的支持 */ public class ContinueFTP { public FTPClient ftpClient = new FTPClient(); public ContinueFTP(){ //设置将过程中使用到的命令输出到控制台 this.ftpClient.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out))); } /** *//** * 连接到FTP服务器 * @param hostname 主机名 * @param port 端口 * @param username 用户名 * @param password 密码 * @return 是否连接成功 * @throws IOException */ public boolean connect(String hostname,int port,String username,String password) throws IOException{ ftpClient.connect(hostname, port); ftpClient.setControlEncoding("GBK"); if(FTPReply.isPositiveCompletion(ftpClient.getReplyCode())){ if(ftpClient.login(username, password)){ return true; } } disconnect(); return false; } /** *//** * 从FTP服务器上下载文件,支持断点续传，上传百分比汇报 * @param remote 远程文件路径 * @param local 本地文件路径 * @return 上传的状态 * @throws IOException */ public DownloadStatus download(String remote,String local) throws IOException{ //设置被动模式 ftpClient.enterLocalPassiveMode(); //设置以二进制方式传输 ftpClient.setFileType(FTP.BINARY_FILE_TYPE); DownloadStatus result; //检查远程文件是否存在 FTPFile[] files = ftpClient.listFiles(new String(remote.getBytes("GBK"),"iso-8859-1")); if(files.length != 1){ System.out.println("远程文件不存在"); return DownloadStatus.Remote_File_Noexist; } long lRemoteSize = files[0].getSize(); File f = new File(local); //本地存在文件，进行断点下载 if(f.exists()){ long localSize = f.length(); //判断本地文件大小是否大于远程文件大小 if(localSize >= lRemoteSize){ System.out.println("本地文件大于远程文件，下载中止"); return DownloadStatus.Local_Bigger_Remote; } //进行断点续传，并记录状态 FileOutputStream out = new FileOutputStream(f,true); ftpClient.setRestartOffset(localSize); InputStream in = ftpClient.retrieveFileStream(new String(remote.getBytes("GBK"),"iso-8859-1")); byte[] bytes = new byte[1024]; long step = lRemoteSize /100; long process=localSize /step; int c; while((c = in.read(bytes))!= -1){ out.write(bytes,0,c); localSize+=c; long nowProcess = localSize /step; if(nowProcess > process){ process = nowProcess; if(process % 10 == 0) System.out.println("下载进度："+process); //TODO 更新文件下载进度,值存放在process变量中 } } in.close(); out.close(); boolean isDo = ftpClient.completePendingCommand(); if(isDo){ result = DownloadStatus.Download_From_Break_Success; }else { result = DownloadStatus.Download_From_Break_Failed; } }else { OutputStream out = new FileOutputStream(f); InputStream in= ftpClient.retrieveFileStream(new String(remote.getBytes("GBK"),"iso-8859-1")); byte[] bytes = new byte[1024]; long step = lRemoteSize /100; long process=0; long localSize = 0L; int c; while((c = in.read(bytes))!= -1){ out.write(bytes, 0, c); localSize+=c; long nowProcess = localSize /step; if(nowProcess > process){ process = nowProcess; if(process % 10 == 0) System.out.println("下载进度："+process); //TODO 更新文件下载进度,值存放在process变量中 } } in.close(); out.close(); boolean upNewStatus = ftpClient.completePendingCommand(); if(upNewStatus){ result = DownloadStatus.Download_New_Success; }else { result = DownloadStatus.Download_New_Failed; } } return result; } /** *//** * 上传文件到FTP服务器，支持断点续传 * @param local 本地文件名称，绝对路径 * @param remote 远程文件路径，使用/home/directory1/subdirectory/file.ext或是 http://www.guihua.org /subdirectory/file.ext 按照Linux上的路径指定方式，支持多级目录嵌套，支持递归创建不存在的目录结构 * @return 上传结果 * @throws IOException */ public UploadStatus upload(String local,String remote) throws IOException{ //设置PassiveMode传输 ftpClient.enterLocalPassiveMode(); //设置以二进制流的方式传输 ftpClient.setFileType(FTP.BINARY_FILE_TYPE); ftpClient.setControlEncoding("GBK"); UploadStatus result; //对远程目录的处理 String remoteFileName = remote; if(remote.contains("/")){ remoteFileName = remote.substring(remote.lastIndexOf("/")+1); //创建服务器远程目录结构，创建失败直接返回 if(CreateDirecroty(remote, ftpClient)==UploadStatus.Create_Directory_Fail){ return UploadStatus.Create_Directory_Fail; } } //检查远程是否存在文件 FTPFile[] files = ftpClient.listFiles(new String(remoteFileName.getBytes("GBK"),"iso-8859-1")); if(files.length == 1){ long remoteSize = files[0].getSize(); File f = new File(local); long localSize = f.length(); if(remoteSize==localSize){ return UploadStatus.File_Exits; }else if(remoteSize > localSize){ return UploadStatus.Remote_Bigger_Local; } //尝试移动文件内读取指针,实现断点续传 result = uploadFile(remoteFileName, f, ftpClient, remoteSize); //如果断点续传没有成功，则删除服务器上文件，重新上传 if(result == UploadStatus.Upload_From_Break_Failed){ if(!ftpClient.deleteFile(remoteFileName)){ return UploadStatus.Delete_Remote_Faild; } result = uploadFile(remoteFileName, f, ftpClient, 0); } }else { result = uploadFile(remoteFileName, new File(local), ftpClient, 0); } return result; } /** *//** * 断开与远程服务器的连接 * @throws IOException */ public void disconnect() throws IOException{ if(ftpClient.isConnected()){ ftpClient.disconnect(); } } /** *//** * 递归创建远程服务器目录 * @param remote 远程服务器文件绝对路径 * @param ftpClient FTPClient对象 * @return 目录创建是否成功 * @throws IOException */ public UploadStatus CreateDirecroty(String remote,FTPClient ftpClient) throws IOException{ UploadStatus status = UploadStatus.Create_Directory_Success; String directory = remote.substring(0,remote.lastIndexOf("/")+1); if(!directory.equalsIgnoreCase("/")&&!ftpClient.changeWorkingDirectory(new String(directory.getBytes("GBK"),"iso-8859-1"))){ //如果远程目录不存在，则递归创建远程服务器目录 int start=0; int end = 0; if(directory.startsWith("/")){ start = 1; }else{ start = 0; } end = directory.indexOf("/",start); while(true){ String subDirectory = new String(remote.substring(start,end).getBytes("GBK"),"iso-8859-1"); if(!ftpClient.changeWorkingDirectory(subDirectory)){ if(ftpClient.makeDirectory(subDirectory)){ ftpClient.changeWorkingDirectory(subDirectory); }else { System.out.println("创建目录失败"); return UploadStatus.Create_Directory_Fail; } } start = end + 1; end = directory.indexOf("/",start); //检查所有目录是否创建完毕 if(end <= start){ break; } } } return status; } /** *//** * 上传文件到服务器,新上传和断点续传 * @param remoteFile 远程文件名，在上传之前已经将服务器工作目录做了改变 * @param localFile 本地文件File句柄，绝对路径 * @param processStep 需要显示的处理进度步进值 * @param ftpClient FTPClient引用 * @return * @throws IOException */ public UploadStatus uploadFile(String remoteFile,File localFile,FTPClient ftpClient,long remoteSize) throws IOException{ UploadStatus status; //显示进度的上传 long step = localFile.length() / 100; long process = 0; long localreadbytes = 0L; RandomAccessFile raf = new RandomAccessFile(localFile,"r"); OutputStream out = ftpClient.appendFileStream(new String(remoteFile.getBytes("GBK"),"iso-8859-1")); //断点续传 if(remoteSize>0){ ftpClient.setRestartOffset(remoteSize); process = remoteSize /step; raf.seek(remoteSize); localreadbytes = remoteSize; } byte[] bytes = new byte[1024]; int c; while((c = raf.read(bytes))!= -1){ out.write(bytes,0,c); localreadbytes+=c; if(localreadbytes / step != process){ process = localreadbytes / step; System.out.println("上传进度:" + process); //TODO 汇报上传状态 } } out.flush(); raf.close(); out.close(); boolean result =ftpClient.completePendingCommand(); if(remoteSize > 0){ status = result?UploadStatus.Upload_From_Break_Success:UploadStatus.Upload_From_Break_Failed; }else { status = result?UploadStatus.Upload_New_File_Success:UploadStatus.Upload_New_File_Failed; } return status; } public static void main(String[] args) { ContinueFTP myFtp = new ContinueFTP(); try { myFtp.connect("192.168.21.181", 21, "nid", "123"); // myFtp.ftpClient.makeDirectory(new String("电视剧".getBytes("GBK"),"iso-8859-1")); // myFtp.ftpClient.changeWorkingDirectory(new String("电视剧".getBytes("GBK"),"iso-8859-1")); // myFtp.ftpClient.makeDirectory(new String("走西口".getBytes("GBK"),"iso-8859-1")); // System.out.println(myFtp.upload("http://www.5a520.cn /yw.flv", "/yw.flv",5)); // System.out.println(myFtp.upload("http://www.5a520.cn /走西口24.mp4","/央视走西口/新浪网/走西口24.mp4")); System.out.println(myFtp.download("/央视走西口/新浪网/走西口24.mp4", "E:\\走西口242.mp4")); myFtp.disconnect(); } catch (IOException e) { System.out.println("连接FTP出错："+e.getMessage()); } } } http://www.cnblogs.com/tt_mc/archive/2010/03/22/1691708.html