JAVA Apache FTPClient example - a method for retrieve file from FTPServer

ftpClientService.java

	public boolean getFileFromFTP_ServerToThePath(Properties ftpProp){
		
		FTPClient ftpClient = null;
		OutputStream fos = null;
		boolean isGetFileFromFTP_ServerToThePathSuccess = false;
		
		try{
		
			ftpClient = new FTPClient();
		
			ftpClient.connect(
				            (String)ftpProp.get(IP), 
				          Integer.parseInt((String)ftpProp.get(PORT))
				          );
		
			ftpClient.login( (String)ftpProp.get(USER_NAME),  (String)ftpProp.get(PASSWORD));
			
		//底下這兩行必須寫   不然會出錯	
		ftpClient.enterLocalPassiveMode();
                ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
		
		
		int reply = ftpClient.getReplyCode();
		m_Logger.info("FTP connection status code :"+reply);
		
		if(! FTPReply.isPositiveCompletion(reply)){
			
			ftpClient.disconnect();
			 throw new IOException("連接FTP server時失敗 請檢查 FTP serverIP, PORT, 帳號密碼");
		};
			
		fos = new BufferedOutputStream(new FileOutputStream(getLocalFilePath(ftpProp)));
		String remoteFilePath = getFilePath(ftpProp);
			
		m_Logger.info("remoteFilePath :"+remoteFilePath);
		
		isGetFileFromFTP_ServerToThePathSuccess = 
				ftpClient.retrieveFile(remoteFilePath, fos);
		  
		  
		
		}catch(IOException e){
			
			m_Logger.error("發生IOException!! :"+e.getMessage());
			
		}finally{
			
			if(fos != null){
				
				try {
					fos.close();
				} catch (IOException ioe1) {
					m_Logger.error("關閉下載檔案的FileOutputStream時發生錯誤! : "+ioe1.getMessage());
				}
			}
		
			if(ftpClient != null && ftpClient.isConnected()){
				
				 try {
					 ftpClient.disconnect();
				} catch (IOException ioe2) {
					
					m_Logger.error("關閉FTP連線時失敗! : "+ioe2.getMessage());
				}
			}
			
		}
		
		return isGetFileFromFTP_ServerToThePathSuccess;
		
	}