如何在电报机器人（JAVA）中下载文件

Question

I want to download a file in my telegram bot code many tutorials say that I must use the getFile method that I can't find that in 4.2 version of the telegram API so how I can download a file to a specific destination in host pc? thanks

Answer 1

Assuming you are using TelegramBot SDK from rubenlagus ( https://github.com/rubenlagus/TelegramBots ), as I faced same issue. Below is my solution.

GetFile getFile = new GetFile().setFileId(fileId);
String filePath = execute(getFile).getFilePath();
File file = downloadFile(filePath, outputFile);

Answer 2

I had the same problem. This was my solution. Not very nice but it works.

if (update.getMessage().hasDocument()){
        String doc_id = update.getMessage().getDocument().getFileId();
        String doc_name = update.getMessage().getDocument().getFileName();
        String doc_mine = update.getMessage().getDocument().getMimeType();
        int doc_size = update.getMessage().getDocument().getFileSize();
        String getID = String.valueOf(update.getMessage().getFrom().getId());

        Document document = new Document();
        document.setMimeType(doc_mine);
        document.setFileName(doc_name);
        document.setFileSize(doc_size);
        document.setFileId(doc_id);

        GetFile getFile = new GetFile();
        getFile.setFileId(document.getFileId());
        try {
            org.telegram.telegrambots.meta.api.objects.File file = execute(getFile);
           downloadFile(file, new File("./data/userDoc/"+getID+"_"+doc_name));
        } catch (TelegramApiException e) {
            e.printStackTrace();
        }


    }

Here I got this solution enter link description here