本文介绍了从C ++中的URL加载图像的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用C ++和OpenCV，我想从受密码保护的URL加载图像。
我成功从URL加载图片使用这个，它使用POCO库，但我不知道当我必须使用用户名和密码才能访问该URL。
I am using C++ and OpenCV and I'd like to load an image from password protected URL.I succeeded in loading image from URL using idea of this link which uses POCO library, but I do not know what should I do when I have to use username and password in order to access the URL.
推荐答案
我会说什么@StevenV说，并尝试编码的凭证在URI中。
I'd say do what @StevenV said and try to encode the credentials in the URI.
不工作，或者您不想使用该方法，则必须使用POCO HTTPClientSession类。像这样：
If that doesn't work or you don't want to use that method you have to use the POCO HTTPClientSession class instead. Something like this:
URI uri(url);
HTTPClientSession session(uri.getHost(), uri.getPort());
HTTPRequest req(HTTPRequest::HTTP_GET, uri.getPathEtc(), HTTPMessage::HTTP_1_1);
HTTPBasicCredentials creds("username","password");
creds.authenticate(req);
session.sendRequest(req);
HttpResponse resp;
std::istream file = session.reveiveResponse(resp);
if(resp.getStatus() == HTTP_OK){
//copy image from istream file here;
}
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