JavaはFTP上にファイルを作成する.

public boolean createDirectory() {
		boolean flag = false;
		
		//   FTP   
		FTPClient ftpClient = new FTPClient();
		
		try {
			//   FTP  
			ftpClient.connect(this.ftpServerIP);
			//       
			if (ftpClient.login(this.ftpName, this.ftpPassword)) {
				
				//       ,  FTP  "xxx"    
				if (this.ftpPath != null && this.ftpPath.compareTo("") != 0
						&& ftpClient.changeWorkingDirectory(this.ftpPath)) {
					SimpleDateFormat f = new SimpleDateFormat("yyyyMMdd");
					String time = f.format(new Date());
					
					String reTransmitFolderName = time + "_Folder";
					ftpClient.makeDirectory(reTransmitFolderName);
					flag = true;
				}
			}
		} catch (SocketException e) {
			e.printStackTrace();
			flag = false;
		} catch (IOException e) {
			e.printStackTrace();
			flag = false;
		} catch (Exception e) {
			e.printStackTrace();
			flag = false;
		} finally {
			try {
				//     
				ftpClient.disconnect();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		
		return flag;
	}