[FIXED] Saving DOMSource object created into a folder in SFTP Server in Java

Issue

I need to save the newly created DOMSource object as new XML file into a folder inside the SFTP server (not transferring a file from local computer into SFTP).

Here is the code

public void save(String xmlFilePath, Document document) {

    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    transformerFactory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
    transformerFactory.setAttribute(XMLConstants.ACCESS_EXTERNAL_STYLESHEET, "");
    Transformer transformer;
    try {
        transformer = transformerFactory.newTransformer();
        DOMSource domSource = new DOMSource(document);
        StreamResult streamResult = new StreamResult(new File(xmlFilePath));
        transformer.transform(domSource,streamResult);

    } catch (TransformerException | NullPointerException e) {
        e.printStackTrace();
    }
}

Solution

Use JSch SSH/SFTP library.

1. Afaik, it's the most widely used SFTP library for Java

2. It supports uploading data from streams.

   I assume that its ChannelSftp.put overload that returns OutputStream can be hooked to your StreamResult (instead of the File).

   StreamResult streamResult =
       new StreamResult(channelSftp.put("/sftp/path/file.zml"));
   

Answered By - Martin Prikryl
Answer Checked By - Katrina (JavaFixing Volunteer)