How to parse network hostname + port in qt?

Question

I am currently writing a network application in Qt and need to seperate network adresses in the form:

example.org:1234

into seperate hostname and port QStrings.

Is there a Qt function to easily parse this and check if the given input is correct?

Thanks in advance!

Did you read `QUrl` documentation? `QUrl::host()`, `QUrl::port()`. — vahancho, May 21 '14 at 20:48
Thaks, just one more question: how do I use QUrl without a presceding scheme (i.i. `http` `ftp`) and so forth? — LocalToast, May 21 '14 at 21:13

score 5 · Accepted Answer · answered May 22 '14 at 03:46

This is quite simple; you just use the QUrl class for this with the constructor, host() and port() methods as follows:

QUrl url("http://example.org:1234")
qDebug() << "Host:" << url.host();
qDebug() << "Port:" << url.port();

As for your comment for avoiding the scheme usage in each url, you could use this:

url.setScheme("ftp");

or

url.setScheme("http");

score 1 · Answer 2 · answered Aug 30 '20 at 16:19

Yes, you should use the QUrl::fromUserInput function to parse the string, and then the host and port methods of the QUrl object to get the QStrings that you want.

auto url{ QUrl::fromUserInput(address) };
auto host{ url.host() };
auto port{ QString::number(url.port()) };

How to parse network hostname + port in qt?

2 Answers2