A code snippet that demonstrates how to download a file from the NetSuite file cabinet and save onto a local folder.

netsuite_suitetalk_file_download.java

private void getFileAndSaveLocally() throws IOException {
    //Login to NetSuite Web Service
    
    /*
    * Get the File from NetSuite by invoking the get operation
    */
    _console.writeLn("Enter Internal ID of the File: ");
    String internalID = _console.readLn();
    RecordRef NSFileRef = new RecordRef();
    NSFileRef.setInternalId(internalID);
    NSFileRef.setType(RecordType.file);
    
    BaseRef baseRef = (BaseRef) NSFileRef;
    
    ReadResponse response = _port.get(baseRef);
    
    if(response.getStatus().isIsSuccess()) {
        File NSFile = (File) response.getRecord();
        byte[] fileContents = NSFile.getContent();
        
        /*
        * By Default, Netsuite Saves the file in the file cabinet
        * with the file extension when you upload it. It is also unique
        * because the File Name field is a keyed field. For sampling purposes,
        * we will assume that their are no conflicts with other file names
        * in the local folder.
        */
        String fileName = NSFile.getName();
        
        /*
        * Determine the folder path
        */
        Path folderPath = Paths.get("C:\\Downloads\\");
        
        /*
        * Determine if the folder exists in the file system
        */
        if(!Files.exists(folderPath))
        Files.createDirectory(folderPath);
        
        /*
        * Determine the file path
        */
        Path filePath = Paths.get("C:\\Downloads\\", fileName);
        
        /*
        * Determine the folder path
        */
        Files.createFile(filePath);
        
        /*
        * Write the contents onto the file
        */
        try(FileOutputStream fileOutputStream = new FileOutputStream(filePath.toFile())) {
            fileOutputStream.write(fileContents);
        }
    }
    else {
        _console.writeLn("Failed");
    }
    
    //Log out of NetSuite Web Service
}