这是我到目前为止所拥有的，但我遇到了一个问题。
页面https://xxxxxxxx.zendesk.com/tickets/33126包含指向 .jpg 图像的链接。我想下载这张图片。该页面可能有多个图像，因此我需要扫描页面以查找所有 .jpg、.gif 等。
I'm having an issue with my code at the end. I'll explain there.
public static void GetTicketAttachments(string url)
{
GetImages("https://xxxxxxxx.zendesk.com/tickets/33126");
}
static void GetImages(string url)
{
string responseString;
HttpWebRequest initialRequest = (HttpWebRequest)WebRequest.Create(url);
using (HttpWebResponse initialResponse = (HttpWebResponse)initialRequest.GetResponse())
{
using (StreamReader reader = new StreamReader(initialResponse.GetResponseStream()))
{
responseString = reader.ReadToEnd();
}
List<string> imageset = new List<string>();
Regex regex = new Regex(@"f=""[^""]*jpg|bmp|tif|gif|png", RegexOptions.IgnoreCase);
foreach (Match m in regex.Matches(responseString))
{
if (!imageset.Contains(m.Value))
imageset.Add(m.Value);
}
for (int i = 0; i < imageset.Count; i++)
imageset[i] = imageset[i].Remove(0, 3);
totalFiles = imageset.Count;
currentFiles = totalFiles;
foreach (string f in imageset)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(DownloadImage), f);
}
}
}
问题发生在这里。出于某种原因，对象“路径”始终为空。因此我无法下载图片。
static void DownloadImage(object path)
{
currentFiles--;
path = Path.GetFileName(path.ToString());
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(path.ToString());
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Image image = Image.FromStream(response.GetResponseStream());
image.Save(@"C:\" + Path.GetFileName(path.ToString()));
}
}
有谁知道可能是什么问题？“图片计数”确实是计数 1（页面上的一个图片链接）。