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Thread: Read contents from the file using QHTTP Read()?

  1. #1
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    Default Read contents from the file using QHTTP Read()?

    I am using the following code to read the contents from the file using QHTTP.


    Qt Code:
    1. QHttp http;
    2. pad.resize(40);
    3. buf.append(pad);
    4. //buf +=file.read(segFileSize);
    5. http.read(pad.data(),segFileSize);
    To copy to clipboard, switch view to plain text mode 

    How to read the data depending upon the size given in the Read() function.

  2. #2
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    Arrow Re: Read contents from the file using QHTTP Read()?

    Groan... Here we go again.

    The QHttp class is obsolete. Do not use it in new code. Why do you continue to ignore advice to move to using QNetworkAccessManager and QNetworkReply?

    The problem is trivially easy even using the wrong API. You could do this to read exactly a number of bytes:
    Qt Code:
    1. // QHttp *http;
    2. // QByteArray ba;
    3. qint64 available = http->bytesAvailable();
    4. ba.resize(available);
    5. qint64 justRead = http->read(ba.data(), available);
    6. if (justRead != available)
    7. // error condition of some sort
    8. ...;
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    or more simply this in your readyRead() signal handler (which is called only when there is data available) or requestFinished() signal handler:
    Qt Code:
    1. QByteArray ba = http->readAll();
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    Of course, if you bothered to read your previous posts on the topic you might worked this out weeks ago.

  3. #3
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    Default Re: Read contents from the file using QHTTP Read()?

    you don't have to create a new thread every day for the same topic.

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