Java Code Examples for org.apache.commons.net.ftp.FTPClient#deleteFile()

public static void removeFTPDirectory(FTPClient ftpClient, String directoryName) {
	try {
    	ftpClient.changeWorkingDirectory(directoryName);
    	for (FTPFile file : ftpClient.listFiles()) {
    		if (file.isDirectory()) {
    			FileUtils.removeFTPDirectory(ftpClient, file.getName());
    		} else {
        	    log.debug("Deleting " + file.getName());
    			ftpClient.deleteFile(file.getName());
    		}
    	}
    	ftpClient.changeWorkingDirectory(directoryName);
    	ftpClient.changeToParentDirectory();
	    log.debug("Deleting " + directoryName);
    	ftpClient.removeDirectory(directoryName);
	} catch (Exception ex) {
		
	}
}
 

public void delectFTP(Keys key, String fileName) {
    FTPClient ftp = new FTPClient();
    String[] host = key.getEndpoint().split("\\:");
    String h = host[0];
    Integer p = Integer.parseInt(host[1]);
    try {
        if(!ftp.isConnected()){
            ftp.connect(h,p);
        }
        ftp.login(key.getAccessKey(), key.getAccessSecret());
        ftp.deleteFile(fileName);
    } catch (IOException e) {
        e.printStackTrace();
        Print.warning("删除FTP存储的图片失败");
    }
}
 

/** 
 * 批量删除 
 *  
 * @param delFiles 
 * @param autoClose 是否自动关闭当前连接 
 *  
 * @return 
 * @throws Exception
 */  
public boolean delete(String[] delFiles, boolean autoClose) throws Exception {
    try {  
        FTPClient ftpClient = getFTPClient();
        for (String s : delFiles) {
            ftpClient.deleteFile(s);  
        }  
        return true;  
    } catch (IOException e) {
        throw new Exception("Couldn't delete file from server.", e);
    } finally {  
        if (autoClose) {  
            disconnect(); //关闭链接  
        }  
    }  
}
 

/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  try {
    FileStatus fileStat = getFileStatus(client, absolute);
    if (fileStat.isFile()) {
      return client.deleteFile(pathName);
    }
  } catch (FileNotFoundException e) {
    //the file is not there
    return false;
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  for (FileStatus dirEntry : dirEntries) {
    delete(client, new Path(absolute, dirEntry.getPath()), recursive);
  }
  return client.removeDirectory(pathName);
}
 

/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  try {
    FileStatus fileStat = getFileStatus(client, absolute);
    if (fileStat.isFile()) {
      return client.deleteFile(pathName);
    }
  } catch (FileNotFoundException e) {
    //the file is not there
    return false;
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  for (FileStatus dirEntry : dirEntries) {
    delete(client, new Path(absolute, dirEntry.getPath()), recursive);
  }
  return client.removeDirectory(pathName);
}
 

private boolean delete(FTPClient ftp, Info info, DeleteParameters params) throws IOException {
	if (Thread.currentThread().isInterrupted()) {
		throw new IOException(FileOperationMessages.getString("IOperationHandler.interrupted")); //$NON-NLS-1$
	}
	URI uri = info.getURI();
	if (info.isDirectory()) {
		if (params.isRecursive()) {
			List<Info> children = list(uri, ftp, LIST_NONRECURSIVE);
			for (Info child: children) {
				delete(ftp, child, params);
			}
			return ftp.removeDirectory(getPath(uri));
		} else {
			throw new IOException(MessageFormat.format(FileOperationMessages.getString("IOperationHandler.cannot_remove_directory"), uri)); //$NON-NLS-1$
		}
	} else {
		return ftp.deleteFile(getPath(uri));
	}
}
 

private boolean delete(FTPClient ftp, Info info, DeleteParameters params) throws IOException {
	if (Thread.currentThread().isInterrupted()) {
		throw new IOException(FileOperationMessages.getString("IOperationHandler.interrupted")); //$NON-NLS-1$
	}
	URI uri = info.getURI();
	if (info.isDirectory()) {
		if (params.isRecursive()) {
			List<Info> children = list(uri, ftp, LIST_NONRECURSIVE);
			for (Info child: children) {
				delete(ftp, child, params);
			}
			return ftp.removeDirectory(getPath(uri));
		} else {
			throw new IOException(MessageFormat.format(FileOperationMessages.getString("IOperationHandler.cannot_remove_directory"), uri)); //$NON-NLS-1$
		}
	} else {
		return ftp.deleteFile(getPath(uri));
	}
}
 

/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return client.deleteFile(pathName);
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  if (dirEntries != null) {
    for (int i = 0; i < dirEntries.length; i++) {
      delete(client, new Path(absolute, dirEntries[i].getPath()), recursive);
    }
  }
  return client.removeDirectory(pathName);
}
 

/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return client.deleteFile(pathName);
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  if (dirEntries != null) {
    for (int i = 0; i < dirEntries.length; i++) {
      delete(client, new Path(absolute, dirEntries[i].getPath()), recursive);
    }
  }
  return client.removeDirectory(pathName);
}
 

@Override
public void deleteFile(final String path, final String remoteFileName) throws IOException {
    final FTPClient client = getClient(null);
    if (path != null) {
        setWorkingDirectory(path);
    }
    if (!client.deleteFile(remoteFileName)) {
        throw new IOException("Failed to remove file " + remoteFileName + " due to " + client.getReplyString());
    }
}
 

/**
 * FTP删除文件
 */
public boolean delete(String path) {
	FTPClient ftpClient = borrowObject();
	try {
		boolean result = ftpClient.deleteFile(path);
		return result;
	} catch (IOException e) {
		e.printStackTrace();
		throw new RuntimeException(e);
	}finally {
		returnObject(ftpClient);
	}
}
 

/**
 * 删除FTP服务器上的指定文件
 *
 * @param directory 文件目录
 * @param fileName  文件名
 * @return true : 删除成功
 * @throws IOException 删除失败
 */
synchronized public boolean deleteFile(String directory, String fileName) throws IOException {
    log.info("删除FTP文件");
    log.info("被删除的文件目录：" + directory);
    log.info("被删除的文件:" + fileName);
    FTPClient ftpClient = FTPUtil.getFTPClient(ftpConnectAttr);
    boolean result = ftpClient != null && ftpClient.deleteFile(directory + "/" + fileName);
    if(result && ftpClient.isConnected())
        ftpClient.disconnect();
    return result;
}
 

/**
 * 删除FTP服务器上的指定文件
 *
 * @param filePath 被删除文件在FTP服务器上的全路径
 * @return true : 删除成功
 * @throws IOException 删除失败
 */
@Override
synchronized public boolean deleteFile(String filePath) throws IOException {
    FTPClient ftpClient = FTPUtil.getFTPClient(ftpConnectAttr);
    boolean result = ftpClient != null && ftpClient.deleteFile(filePath);
    if(result && ftpClient.isConnected())
        ftpClient.disconnect();
    return result;
}
 

@Override
public void deleteFile(final FlowFile flowFile, final String path, final String remoteFileName) throws IOException {
    final FTPClient client = getClient(flowFile);
    if (path != null) {
        setWorkingDirectory(path);
    }
    if (!client.deleteFile(remoteFileName)) {
        throw new IOException("Failed to remove file " + remoteFileName + " due to " + client.getReplyString());
    }
}
 

/**  
     * 上传文件到FTP服务器，支持断点续传  
     *  localAbsoluteFile 本地文件名称，绝对路径
     *  remoteAbsoluteFile 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 Map upload() throws Exception {
    	FTPClient ftpClient =null;
    	Map result=new HashMap();

    	String flag="1";
        try {
        	ftpClient =getFTPClient();
            File f = new File(localfilename);
            long localSize = f.length();  
            threadpara.put("filesize", localSize);
            //对远程目录的处理   
            if(serverfilename.contains("/")){   
                //创建服务器远程目录结构，创建失败直接返回   
                if(!mkdirMore(serverfilename.substring(0,serverfilename.lastIndexOf("/")+1))){  
                	threadpara.put("flag","0");
                	return threadpara;
                }   
            }   
            //检查远程是否存在文件   
            FTPFile[] files = ftpClient.listFiles(new String(serverfilename.getBytes("GBK"),"iso-8859-1"));
            if(files.length == 1){   
                long remoteSize = files[0].getSize();   
                if(remoteSize>=localSize){
                	threadpara.put("flag","1");
                	return threadpara;
                }
                //尝试移动文件内读取指针,实现断点续传   
                result = uploadFile(serverfilename, f,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("0".equals(result.get("flag").toString())){   
                    if(!ftpClient.deleteFile(serverfilename)){   
                        return result;   
                    }   
                    result = uploadFile(serverfilename, f,  0);   
                }   
            }else {   
                result = uploadFile(serverfilename, new File(localfilename),  0);
            }   
        } catch (Exception e1) {
//        	result=result;
			// TODO Auto-generated catch block
			//e1.printStackTrace();
			throw e1;
		}
        threadpara.put("flag",result.get("flag"));
    	return threadpara;
    }
 

/**
 * Test a quota failue exception over FTP.
 * A file should not exist after a create and quota exception. 
 */
public void testFtpQuotaAndFtp() throws Exception
{
    // Enable usages
    ContentUsageImpl contentUsage = (ContentUsageImpl)applicationContext.getBean("contentUsageImpl");
    contentUsage.setEnabled(true);
    contentUsage.init();
    UserUsageTrackingComponent userUsageTrackingComponent = (UserUsageTrackingComponent)applicationContext.getBean("userUsageTrackingComponent");
    userUsageTrackingComponent.setEnabled(true);
    userUsageTrackingComponent.bootstrapInternal();
    
    final String TEST_DIR="/Alfresco/User Homes/" + USER_THREE;
 
    FTPClient ftpOne = connectClient();
    try
    {
        int reply = ftpOne.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply))
        {
            fail("FTP server refused connection.");
        }
            
        boolean login = ftpOne.login(USER_THREE, PASSWORD_THREE);
        assertTrue("user three login not successful", login);
                    
        boolean success = ftpOne.changeWorkingDirectory("Alfresco");
        assertTrue("user three unable to cd to Alfreco", success);
        success = ftpOne.changeWorkingDirectory("User*Homes");
        assertTrue("user one unable to cd to User*Homes", success);
        success = ftpOne.changeWorkingDirectory(USER_THREE);
        assertTrue("user one unable to cd to " + USER_THREE, success);
        
        /**
         * Create a file as user three which is bigger than the quota
         */
        String FILE3_CONTENT_3="test file 3 content that needs to be greater than 100 bytes to result in a quota exception being thrown";
        String FILE1_NAME = "test.docx";

        // Should not be success
        success = ftpOne.appendFile(FILE1_NAME , new ByteArrayInputStream(FILE3_CONTENT_3.getBytes("UTF-8")));
        assertFalse("user one can ignore quota", success);
            
        boolean deleted = ftpOne.deleteFile(FILE1_NAME);
        assertFalse("quota exception expected", deleted);
        
        logger.debug("test done");
                 
    } 
    finally
    {
        // Disable usages
        contentUsage.setEnabled(false);
        contentUsage.init();
        userUsageTrackingComponent.setEnabled(false);
        userUsageTrackingComponent.bootstrapInternal();
        
        
        ftpOne.dele(TEST_DIR);
        if(ftpOne != null)
        {
            ftpOne.disconnect();
        }
    }       

}