QNetworkReply:在 QWebView 中禁用网络访问 [英] QNetworkReply: Network access is disabled in QWebView

问题描述

我无法将网站加载到我的 QWebView，QNetworkReply 返回错误:网络访问被禁用.从本地作品加载文件.

I cannot load website into my QWebView, QNetworkReply is returning me the error: Network Access is disabled. Loading files from local works.

我正在使用 Qt5.有谁知道为什么连接被禁用以及这条线如何影响这种情况:

I am using Qt5. Does anyone know why is connection disabled and how this line affects this situation:

QNetworkProxyFactory::setUseSystemConfiguration(false);

我的 eth0 连接工作正常，我可以 ping 任何网站.

My eth0 connection works properly, and I am able to ping any website.

推荐答案

来自 Qt 文档:调用 setUseSystemConfiguration() 会覆盖之前设置的任何应用程序代理或代理工厂. 所以要小心不要之前设置过任何其他代理.

From the Qt doc : calling setUseSystemConfiguration() overrides any application proxy or proxy factory that was previously set. So be careful to not have set any other proxy before.

此外，如果您想检查网络访问，您可以这样做:

Moreover, if you want to check the Network access, you might do it that way :

QNetworkAccessManager   m_pManager;
QNetworkConfigurationManager configManager;    
m_pManager.setConfiguration(configManager.defaultConfiguration());

connect(&m_pManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));
connect(&m_pManager, SIGNAL(networkAccessibleChanged(QNetworkAccessManager::NetworkAccessibility)), this, SLOT(networkAccessibleChanged(QNetworkAccessManager::NetworkAccessibility)));

并在您的插槽中:

if(accessible != QNetworkAccessManager::Accessible)
    {
        // case where the network is not available
    }

对于回复，您可以在插槽 replyFinished() 中检查过程中是否出现错误.

And for the reply, you can check in the slot replyFinished() if there was an error during the process.

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