QNetworkAccessManager问题
我正在尝试使用 QNetworkAccessManager 打开网页 - 对于某些页面它工作正常 - 而对于其他页面则不然。我尝试设置真正的浏览器用户代理，但它仍然不起作用，例如 http://www.erepublik.com 。代码如下：
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
connect(manager, SIGNAL(finished(QNetworkReply*)),
this, SLOT(replyFinished(QNetworkReply*)));
QNetworkRequest *request = new QNetworkRequest(QUrl("http://www.erepublik.com"));
request->setRawHeader( "User-Agent", "Mozilla/5.0 (X11; U; Linux i686 (x86_64); "
"en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1" );
request->setRawHeader( "charset", "utf-8" );
request->setRawHeader( "Connection", "keep-alive" );
manager->get(*request);
...
void MainWindow::replyFinished(QNetworkReply *reply)
{
QString data = reply->readAll();
qDebug() << data;
}
数据如下：
<html><head><meta http-equiv="refresh" content="0;url=http://www.erepublik.com/en"/></head></html><html><head><meta http-equiv="refresh" content="0;url=http://www.erepublik.com/en"/></head></html>
现在，让我烦恼的是，这适用于像 http://www 这样的网站.hardwarebase.net（数据返回正常的 HTML 源），但它不适用于 eRepublik。
对于那些想知道我到底想做什么的人 - 我想从 eRepublik 主页获取国家/地区的人口数量。
有什么想法为什么会发生这种情况吗？提前致谢。
I'm trying to open a web page using QNetworkAccessManager - and for some pages it works fine - while for others it does not. I tried setting a real browser user-agent, however it still doesn't work for example, http://www.erepublik.com. Here's the code:
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
connect(manager, SIGNAL(finished(QNetworkReply*)),
this, SLOT(replyFinished(QNetworkReply*)));
QNetworkRequest *request = new QNetworkRequest(QUrl("http://www.erepublik.com"));
request->setRawHeader( "User-Agent", "Mozilla/5.0 (X11; U; Linux i686 (x86_64); "
"en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1" );
request->setRawHeader( "charset", "utf-8" );
request->setRawHeader( "Connection", "keep-alive" );
manager->get(*request);
...
void MainWindow::replyFinished(QNetworkReply *reply)
{
QString data = reply->readAll();
qDebug() << data;
}
The data is the following:
<html><head><meta http-equiv="refresh" content="0;url=http://www.erepublik.com/en"/></head></html><html><head><meta http-equiv="refresh" content="0;url=http://www.erepublik.com/en"/></head></html>
Now, what's bugging me this works for a site like http://www.hardwarebase.net (data returns the normal HTML source), while it doesn't work for eRepublik.
For those who are curious to know what I exactly want to do - I want to get the population number of countries from the eRepublik front page.
Any ideas why is this happening? Thanks in advance.
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看起来您正确获取了数据，只是该特定 URL 只是将您转发到另一个 URL。尝试使用 http://www.erepublik.com/en （使用 /en）。
It looks like you're getting the data correctly, it's just that that particular URL just forwards you to a different one. Try http://www.erepublik.com/en (with the /en) instead.
返回的 HTML 会将您重定向到 http://www.erepublik.com/en，因此您可以最好形成 QNetworkRequest 以直接访问该 URL。
The returned HTML is re-directing you to http://www.erepublik.com/en so you would be best off forming you QNetworkRequest to go straight to that URL.