How to use post() in qt?

Question

This is my program. In this program I want to send request to a website (for example: http://www.adobe.com/products/muse.html)
I want to show the html code that return me in plain text box.

QUrl url("http://www.adobe.com/products/muse.html")

I want to give html code in "thisfile"

file.setFileName("thisfile.html");

if (!file.open(QIODevice::WriteOnly))
{
    std::cerr << "Error: Cannot write file "
    << qPrintable(file.fileName()) << ": "
    << qPrintable(file.errorString()) << std::endl

    return false;
}

http.setHost(url.host(),80);
http.post(url.toString(),"term=yyyy&loc=en_us&siteSection=products%3Amuse",&file);

This code doesn't work correctly and when I show the file give me false html code. What do I have to do?

What is the scope of `file` instance? Is it local to that block? — Ammar, Jun 12 '12 at 09:58

score 1 · Answer 1 · edited May 23 '17 at 12:12

1

Use http.get() instead of http.post() as POST method requires to set other Headers used by server.

QHttp::get() method is asynchronous too.

As your case is simple enough just to retrieve HTML response, you should go for HTTP GET IMHO. See difference between GET and POST method.

And if you have to use HTTP POST only, then check this.

edited May 23 '17 at 12:12

Community

1
1

answered Jun 12 '12 at 10:03

Ammar

1,947
14
15

thanks for your replay i do this befor : Replace url.toString() to url.path() in http.post() line buth not use full – user1450608 Jun 12 '12 at 10:43
i have to use post in my project – user1450608 Jun 12 '12 at 10:55
I have updated my answer. It returns correct html for `http://www.adobe.com/products/muse.html`. – Ammar Jun 12 '12 at 12:02

score 0 · Answer 2 · answered Jun 12 '12 at 09:39

0

 QNetworkRequest request;
 request.setUrl(QUrl("thisfile.html"));

 QNetworkReply *reply = manager->post(request, "term=yyyy&loc=en_us&siteSection=products%3Amuse");
 connect(reply, SIGNAL(readyRead()), this, SLOT(slotReadyRead()));

Look at QNetworkAccessManager at qt docs

You have to read information and save it to file at readyRead function

answered Jun 12 '12 at 09:39

TheHorse

2,787
1
23
32

thanks for your replay but i have a question: where i must be set the address of file(&file) that for savig html cod that post giv it to me? – user1450608 Jun 12 '12 at 10:42
hi thehorse please help me and replay to me – user1450608 Jun 13 '12 at 05:37
at my example, you have to implement file operations at slot "slotReadyRead". – TheHorse Jun 13 '12 at 09:30

How to use post() in qt?

2 Answers2

Linked