首页 > 代码库 > 【FTP】org.apache.commons.net.ftp.FTPClient实现复杂的上传下载，操作目录，处理编码
【FTP】org.apache.commons.net.ftp.FTPClient实现复杂的上传下载，操作目录，处理编码
和上一份简单 上传下载一样
来，任何的方法不懂的，http://commons.apache.org/proper/commons-net/apidocs/org/apache/commons/net/ftp/FTPClient.html
API拿走不谢！！！
1.FTP配置实体
1 package com.agen.util; 2 3 public class FtpConfig { 4 //主机ip 5 private String FtpHost = "192.168.18.252"; 6 //端口号 7 private int FtpPort = 21; 8 //ftp用户名 9 private String FtpUser = "ftp"; 10 //ftp密码 11 private String FtpPassword = "agenbiology"; 12 //ftp中的目录 这里先指定的根目录 13 private String FtpPath = "/"; 14 15 16 17 public String getFtpHost() { 18 return FtpHost; 19 } 20 public void setFtpHost(String ftpHost) { 21 FtpHost = ftpHost; 22 } 23 public int getFtpPort() { 24 return FtpPort; 25 } 26 public void setFtpPort(int ftpPort) { 27 FtpPort = ftpPort; 28 } 29 public String getFtpUser() { 30 return FtpUser; 31 } 32 public void setFtpUser(String ftpUser) { 33 FtpUser = ftpUser; 34 } 35 public String getFtpPassword() { 36 return FtpPassword; 37 } 38 public void setFtpPassword(String ftpPassword) { 39 FtpPassword = ftpPassword; 40 } 41 public String getFtpPath() { 42 return FtpPath; 43 } 44 public void setFtpPath(String ftpPath) { 45 FtpPath = ftpPath; 46 } 47 48 49 50 }
2.FTP工具类，仅有一个删除文件夹【目录】的操作方法，删除文件夹包括文件夹下所有的文件
1 package com.agen.util; 2 3 import java.io.IOException; 4 import java.io.InputStream; 5 import java.io.OutputStream; 6 7 import org.apache.commons.net.ftp.FTPClient; 8 import org.apache.commons.net.ftp.FTPFile; 9 10 11 12 public class FtpUtils { 13 14 /** 15 * 获取FTP连接 16 * @return 17 */ 18 public FTPClient getFTPClient() { 19 FtpConfig config = new FtpConfig(); 20 FTPClient ftpClient = new FTPClient(); 21 boolean result = true; 22 try { 23 //连接FTP服务器 24 ftpClient.connect(config.getFtpHost(), config.getFtpPort()); 25 //如果连接 26 if (ftpClient.isConnected()) { 27 //提供用户名/密码登录FTP服务器 28 boolean flag = ftpClient.login(config.getFtpUser(), config.getFtpPassword()); 29 //如果登录成功 30 if (flag) { 31 //设置编码类型为UTF-8 32 ftpClient.setControlEncoding("UTF-8"); 33 //设置文件类型为二进制文件类型 34 ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); 35 } else { 36 result = false; 37 } 38 } else { 39 result = false; 40 } 41 //成功连接并 登陆成功 返回连接 42 if (result) { 43 return ftpClient; 44 } else { 45 return null; 46 } 47 } catch (Exception e) { 48 e.printStackTrace(); 49 return null; 50 } 51 } 52 /** 53 * 删除文件夹下所有文件 54 * @return 55 * @throws IOException 56 */ 57 public boolean deleteFiles(String pathname) throws IOException{ 58 FTPClient ftpClient = getFTPClient(); 59 FTPFile [] ftpFiles = ftpClient.listFiles(new String((pathname).getBytes("UTF-8"),"iso-8859-1")); 60 if(ftpFiles.length > 0){ 61 for (int i = 0; i < ftpFiles.length; i++) { 62 System.out.println(ftpFiles[i].getName()); 63 if(ftpFiles[i].isDirectory()){ 64 deleteFiles(pathname+"/"+ftpFiles[i].getName()); 65 }else{ 66 System.out.println(pathname); 67 //这里需要提供删除文件的路径名 才能删除文件 68 ftpClient.deleteFile(new String((pathname+"/"+ftpFiles[i].getName()).getBytes("UTF-8"),"iso-8859-1")); 69 FTPFile [] ftFiles = ftpClient.listFiles(new String((pathname).getBytes("UTF-8"),"iso-8859-1")); 70 if(ftFiles.length == 0){//如果文件夹中现在已经为空了 71 ftpClient.removeDirectory(new String(pathname.getBytes("UTF-8"),"iso-8859-1")); 72 } 73 } 74 } 75 } 76 return true; 77 } 78 79 /** 80 * 关闭 输入流或输出流 81 * @param in 82 * @param out 83 * @param ftpClient 84 */ 85 public void close(InputStream in, OutputStream out,FTPClient ftpClient) { 86 if (null != in) { 87 try { 88 in.close(); 89 } catch (IOException e) { 90 e.printStackTrace(); 91 System.out.println("输入流关闭失败"); 92 } 93 } 94 if (null != out) { 95 try { 96 out.close(); 97 } catch (IOException e) { 98 e.printStackTrace(); 99 System.out.println("输出流关闭失败"); 100 } 101 } 102 if (null != ftpClient) { 103 try { 104 ftpClient.logout(); 105 ftpClient.disconnect(); 106 } catch (IOException e) { 107 e.printStackTrace(); 108 System.out.println("Ftp服务关闭失败!"); 109 } 110 } 111 } 112 113 }
3.实际用到的FTP上传【创建多层中文目录】+下载【浏览器下载OR服务器下载】+删除 【处理FTP编码方式与本地编码不一致】
1 /** 2 * 上传至FTP服务器 3 * @param partFile 4 * @param request 5 * @param diseaseName 6 * @param productName 7 * @param diseaseId 8 * @return 9 * @throws IOException 10 */ 11 @RequestMapping("/uploadFiles") 12 @ResponseBody 13 public boolean uploadFiles(@RequestParam("upfile")MultipartFile partFile,HttpServletRequest request,String diseaseName,String productName,String diseaseId) throws IOException{ 14 Disease disease = new Disease(); 15 disease.setDiseaseId(diseaseId); 16 Criteria criteria = getCurrentSession().createCriteria(Filelist.class); 17 criteria.add(Restrictions.eq("disease", disease)); 18 Filelist flFilelist = filelistService.uniqueResult(criteria); 19 if(flFilelist == null){ 20 FtpUtils ftpUtils = new FtpUtils(); 21 boolean result = true; 22 InputStream in = null; 23 FTPClient ftpClient = ftpUtils.getFTPClient(); 24 if (null == ftpClient) { 25 System.out.println("FTP服务器未连接成功!!!"); 26 return false; 27 } 28 try { 29 30 String path = "/file-ave/"; 31 ftpClient.changeWorkingDirectory(path); 32 System.out.println(ftpClient.printWorkingDirectory()); 33 //创建产品文件夹 转码 防止在FTP服务器上创建时乱码 34 ftpClient.makeDirectory(new String(productName.getBytes("UTF-8"),"iso-8859-1")); 35 //指定当前的工作路径到产品文件夹下 36 ftpClient.changeWorkingDirectory(path+new String(productName.getBytes("UTF-8"),"iso-8859-1")); 37 //创建疾病文件夹 转码 38 ftpClient.makeDirectory(new String(diseaseName.getBytes("UTF-8"),"iso-8859-1")); 39 //指定当前的工作路径到疾病文件夹下 40 ftpClient.changeWorkingDirectory(path+new String(productName.getBytes("UTF-8"),"iso-8859-1")+"/"+new String(diseaseName.getBytes("UTF-8"),"iso-8859-1")); 41 42 // 得到上传的文件的文件名 43 String filename = partFile.getOriginalFilename(); 44 in = partFile.getInputStream(); 45 ftpClient.storeFile(new String(filename.getBytes("UTF-8"),"iso-8859-1"), in); 46 path += productName+"/"+diseaseName+"/"; 47 48 49 DecimalFormat df = new DecimalFormat(); 50 String fileSize = partFile.getSize()/1024>100 ? (partFile.getSize()/1024/1024>100? df.format((double)partFile.getSize()/1024/1024/1024)+"GB" :df.format((double)partFile.getSize()/1024/1024)+"MB" ) :df.format((double)partFile.getSize()/1024)+"KB"; 51 HttpSession session = request.getSession(); 52 User user = (User) session.getAttribute("user"); 53 54 Filelist filelist = new Filelist(); 55 filelist.setFileId(UUID.randomUUID().toString()); 56 filelist.setFileName(filename); 57 filelist.setFilePath(path+filename); 58 filelist.setFileCre(fileSize); 59 filelist.setCreateDate(new Timestamp(System.currentTimeMillis())); 60 filelist.setUpdateDate(new Timestamp(System.currentTimeMillis())); 61 filelist.setTransPerson(user.getUserId()); 62 filelist.setDisease(disease); 63 filelistService.save(filelist); 64 65 66 67 return result; 68 69 } catch (IOException e) { 70 e.printStackTrace(); 71 return false; 72 } finally { 73 ftpUtils.close(in, null, ftpClient); 74 } 75 }else{ 76 return false; 77 } 78 } 79 80 /** 81 * 删除文件 82 * @param filelistId 83 * @return 84 * @throws IOException 85 * @throws UnsupportedEncodingException 86 */ 87 @RequestMapping("/filelistDelete") 88 @ResponseBody 89 public boolean filelistDelete(String []filelistId) throws UnsupportedEncodingException, IOException{ 90 for (String string : filelistId) { 91 Filelist filelist = filelistService.uniqueResult("fileId", string); 92 String filePath = filelist.getFilePath(); 93 FtpUtils ftpUtils = new FtpUtils(); 94 FTPClient ftpClient = ftpUtils.getFTPClient(); 95 InputStream inputStream = ftpClient.retrieveFileStream(new String(filePath.getBytes("UTF-8"),"iso-8859-1")); 96 if(inputStream != null || ftpClient.getReplyCode() == 550){ 97 ftpClient.deleteFile(new String(filePath.getBytes("UTF-8"),"iso-8859-1")); 98 } 99 filelistService.deleteById(string); 100 } 101 return true; 102 } 103 104 /** 105 * 下载到本地 106 * @param fileId 107 * @param response 108 * @return 109 * @throws IOException 110 * @throws InterruptedException 111 */ 112 @RequestMapping("/fileDownload") 113 public String fileDownload(String fileId,HttpServletResponse response) throws IOException, InterruptedException{ 114 Filelist filelist = filelistService.get(fileId); 115 Assert.notNull(filelist); 116 String filePath = filelist.getFilePath(); 117 String fileName = filelist.getFileName(); 118 String targetPath = "D:/biologyInfo/Download/"; 119 File file = new File(targetPath); 120 while(!file.exists()){ 121 file.mkdirs(); 122 } 123 FtpUtils ftpUtils = new FtpUtils(); 124 FileOutputStream out = null; 125 FTPClient ftpClient = ftpUtils.getFTPClient(); 126 if (null == ftpClient) { 127 System.out.println("FTP服务器未连接成功!!!"); 128 } 129 try { 130 //下载到 应用服务器而不是本地 131 // //要写到本地的位置 132 // File file2 = new File(targetPath + fileName); 133 // out = new FileOutputStream(file2); 134 // //截取文件的存储位置 不包括文件本身 135 // filePath = filePath.substring(0, filePath.lastIndexOf("/")); 136 // //文件存储在FTP的位置 137 // ftpClient.changeWorkingDirectory(new String(filePath.getBytes("UTF-8"),"iso-8859-1")); 138 // System.out.println(ftpClient.printWorkingDirectory()); 139 // //下载文件 140 // ftpClient.retrieveFile(new String(fileName.getBytes("UTF-8"),"iso-8859-1"), out); 141 // return true; 142 143 //下载到 客户端 浏览器 144 InputStream inputStream = ftpClient.retrieveFileStream(new String(filePath.getBytes("UTF-8"),"iso-8859-1")); 145 response.setContentType("multipart/form-data"); 146 response.setHeader("Content-Disposition", "attachment;filename="+ new String(fileName.getBytes("UTF-8"),"iso-8859-1")); 147 OutputStream outputStream = response.getOutputStream(); 148 byte[] b = new byte[1024]; 149 int length = 0; 150 while ((length = inputStream.read(b)) != -1) { 151 outputStream.write(b, 0, length); 152 } 153 154 } catch (IOException e) { 155 e.printStackTrace(); 156 } finally { 157 ftpUtils.close(null, out, ftpClient); 158 } 159 return null; 160 }
【FTP】org.apache.commons.net.ftp.FTPClient实现复杂的上传下载，操作目录，处理编码
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