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1 package com.ftp; 2 3 /** 4 * ftp链接常量 5 * 6 */ 7 public class Ftp { 8 9 private String ipAddr;//ip地址 10 11 private Integer port;//端口号 12 13 private String userName;//用户名 14 15 private String pwd;//密码 16 17 private String path;//aaa路径 18 19 public String getIpAddr() { 20 return ipAddr; 21 } 22 23 public void setIpAddr(String ipAddr) { 24 this.ipAddr = ipAddr; 25 } 26 27 public Integer getPort() { 28 return port; 29 } 30 31 public void setPort(Integer port) { 32 this.port = port; 33 } 34 35 public String getUserName() { 36 return userName; 37 } 38 39 public void setUserName(String userName) { 40 this.userName = userName; 41 } 42 43 public String getPwd() { 44 return pwd; 45 } 46 47 public void setPwd(String pwd) { 48 this.pwd = pwd; 49 } 50 51 public String getPath() { 52 return path; 53 } 54 55 public void setPath(String path) { 56 this.path = path; 57 } 58 59 60 }
1 package com.ftp; 2 3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileOutputStream; 6 import java.io.IOException; 7 import java.io.OutputStream; 8 9 10 import org.apache.commons.net.ftp.FTPClient; 11 import org.apache.commons.net.ftp.FTPFile; 12 import org.apache.commons.net.ftp.FTPReply; 13 import org.apache.log4j.Logger; 14 15 public class FtpUtil { 16 17 private static Logger logger=Logger.getLogger(FtpUtil.class); 18 19 private static FTPClient ftp; 20 21 /** 22 * 获取ftp连接 23 * @param f 24 * @return 25 * @throws Exception 26 */ 27 public static boolean connectFtp(Ftp f) throws Exception{ 28 ftp=new FTPClient(); 29 boolean flag=false; 30 int reply; 31 if (f.getPort()==null) { 32 ftp.connect(f.getIpAddr(),21); 33 }else{ 34 ftp.connect(f.getIpAddr(),f.getPort()); 35 } 36 ftp.login(f.getUserName(), f.getPwd()); 37 ftp.setFileType(FTPClient.BINARY_FILE_TYPE); 38 reply = ftp.getReplyCode(); 39 if (!FTPReply.isPositiveCompletion(reply)) { 40 ftp.disconnect(); 41 return flag; 42 } 43 ftp.changeWorkingDirectory(f.getPath()); 44 flag = true; 45 return flag; 46 } 47 48 /** 49 * 关闭ftp连接 50 */ 51 public static void closeFtp(){ 52 if (ftp!=null && ftp.isConnected()) { 53 try { 54 ftp.logout(); 55 ftp.disconnect(); 56 } catch (IOException e) { 57 e.printStackTrace(); 58 } 59 } 60 } 61 62 /** 63 * ftp上传文件 64 * @param f 65 * @throws Exception 66 */ 67 public static void upload(File f) throws Exception{ 68 if (f.isDirectory()) { 69 ftp.makeDirectory(f.getName()); 70 ftp.changeWorkingDirectory(f.getName()); 71 String[] files=f.list(); 72 for(String fstr : files){ 73 File file1=new File(f.getPath()+"/"+fstr); 74 if (file1.isDirectory()) { 75 upload(file1); 76 ftp.changeToParentDirectory(); 77 }else{ 78 File file2=new File(f.getPath()+"/"+fstr); 79 FileInputStream input=new FileInputStream(file2); 80 ftp.storeFile(file2.getName(),input); 81 input.close(); 82 } 83 } 84 }else{ 85 File file2=new File(f.getPath()); 86 FileInputStream input=new FileInputStream(file2); 87 ftp.storeFile(file2.getName(),input); 88 input.close(); 89 } 90 } 91 92 /** 93 * 下载链接配置 94 * @param f 95 * @param localBaseDir 本地目录 96 * @param remoteBaseDir 远程目录 97 * @throws Exception 98 */ 99 public static void startDown(Ftp f,String localBaseDir,String remoteBaseDir ) throws Exception{ 100 if (FtpUtil.connectFtp(f)) { 101 102 try { 103 FTPFile[] files = null; 104 boolean changedir = ftp.changeWorkingDirectory(remoteBaseDir); 105 if (changedir) { 106 ftp.setControlEncoding("GBK"); 107 files = ftp.listFiles(); 108 for (int i = 0; i < files.length; i++) { 109 try{ 110 downloadFile(files[i], localBaseDir, remoteBaseDir); 111 }catch(Exception e){ 112 logger.error(e); 113 logger.error("<"+files[i].getName()+">下载失败"); 114 } 115 } 116 } 117 } catch (Exception e) { 118 logger.error(e); 119 logger.error("下载过程中出现异常"); 120 } 121 }else{ 122 logger.error("链接失败！"); 123 } 124 125 } 126 127 128 /** 129 * 130 * 下载FTP文件 131 * 当你需要下载FTP文件的时候，调用此方法 132 * 根据<b>获取的文件名，本地地址，远程地址</b>进行下载 133 * 134 * @param ftpFile 135 * @param relativeLocalPath 136 * @param relativeRemotePath 137 */ 138 private static void downloadFile(FTPFile ftpFile, String relativeLocalPath,String relativeRemotePath) { 139 if (ftpFile.isFile()) { 140 if (ftpFile.getName().indexOf("?") == -1) { 141 OutputStream outputStream = null; 142 try { 143 File locaFile= new File(relativeLocalPath+ ftpFile.getName()); 144 //判断文件是否存在，存在则返回 145 if(locaFile.exists()){ 146 return; 147 }else{ 148 outputStream = new FileOutputStream(relativeLocalPath+ ftpFile.getName()); 149 ftp.retrieveFile(ftpFile.getName(), outputStream); 150 outputStream.flush(); 151 outputStream.close(); 152 } 153 } catch (Exception e) { 154 logger.error(e); 155 } finally { 156 try { 157 if (outputStream != null){ 158 outputStream.close(); 159 } 160 } catch (IOException e) { 161 logger.error("输出文件流异常"); 162 } 163 } 164 } 165 } else { 166 String newlocalRelatePath = relativeLocalPath + ftpFile.getName(); 167 String newRemote = new String(relativeRemotePath+ ftpFile.getName().toString()); 168 File fl = new File(newlocalRelatePath); 169 if (!fl.exists()) { 170 fl.mkdirs(); 171 } 172 try { 173 newlocalRelatePath = newlocalRelatePath + ‘/‘; 174 newRemote = newRemote + "/"; 175 String currentWorkDir = ftpFile.getName().toString(); 176 boolean changedir = ftp.changeWorkingDirectory(currentWorkDir); 177 if (changedir) { 178 FTPFile[] files = null; 179 files = ftp.listFiles(); 180 for (int i = 0; i < files.length; i++) { 181 downloadFile(files[i], newlocalRelatePath, newRemote); 182 } 183 } 184 if (changedir){ 185 ftp.changeToParentDirectory(); 186 } 187 } catch (Exception e) { 188 logger.error(e); 189 } 190 } 191 } 192 193 194 public static void main(String[] args) throws Exception{ 195 Ftp f=new Ftp(); 196 f.setIpAddr("1111"); 197 f.setUserName("root"); 198 f.setPwd("111111"); 199 FtpUtil.connectFtp(f); 200 File file = new File("F:/test/com/test/Testng.java"); 201 FtpUtil.upload(file);//把文件上传在ftp上 202 FtpUtil.startDown(f, "e:/", "/xxtest");//下载ftp文件测试 203 System.out.println("ok"); 204 205 } 206 207 }
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原文地址：http://www.cnblogs.com/wsmr8825/p/5324496.html
