从FTP服务器读取单行而无需使用它下载整个文件。sauronsoftware.ftp4j.FTPClient

Question

How can we read single line from FTP server without downloading whole file using it.sauronsoftware.ftp4j.FTPClient.

Now, I am downloading whole file and than reading first line of file, is there any way we can read first line of file without download file in local machine. It should use only it.sauronsoftware.ftp4j

@ http://www.sauronsoftware.it/projects/ftp4j/manual.php

NOTE : It should use it.sauronsoftware.ftp4j.FTPClient and not apache .

Answer 1

Mohit,

Use the Socket dtConnection; dtConnection.getInputStream(); of ftp4j.FTPClient you will get InputStream, Using that InputStream you can read first line of.

you can find below Example hoe to read first line using InputStream

BufferedReader bufferedReader = null; String firstLine = null;

bufferedReader = new BufferedReader(new InputStreamReader(this.dataTransferInputStream, "UTF-8")); firstLine = bufferedReader.readLine();

Hope this solution will work for you.

Answer 2

You could make your own stream class that throws an exception after it has the first line written to it.

Edit: or it could call abortCurrentDataTransfer() after it received the first line.