c++ - 是否有通用方法从枚举 NetworkError 中获取网络错误字符串，或者我是否需要构建一个？

Question

我有基于枚举 NetworkError 打印网络错误的基本功能。看起来像这样:

void HttpClient::HandleNetworkError(QNetworkReply::NetworkError& networkError)
{
  switch(networkError)
  {
  case(QNetworkReply::ConnectionRefusedError):
   LOG_MSG("NO NETWORK CONNECTION ConnectionRefusedError!! ");
   break;
  case(QNetworkReply::HostNotFoundError):
   //handle the html output is no internet connection is found
   LOG_MSG("NO NETWORK CONNECTION HostNotFoundError!! ");
   break;
  case(QNetworkReply::SslHandshakeFailedError):
   //handle the html output is no internet connection is found
   LOG_MSG("CONNECTION SslHandshakeFailedError!! ");
   break;
  case(QNetworkReply::UnknownContentError):
   LOG_MSG("CONNECTION UnknownContentError!! ");
   break;
  default :
   LOG_MSG("CONNECTION not defined default error UnknownContentError!! ");
  }

}

现在我需要支持更多错误，实际上是枚举 NetworkError 中列出的所有错误，这是否意味着我需要
将它们全部添加到此开关盒中？或者有某种通用的 Qt 函数可以进行这种翻译？

Answer 1

这已在 QNetworkReply::error() 中得到解答信号文档:

Call errorString() to obtain a textual representation of the error condition.