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我想使用HttpWebRequest
在olx.ba上发布广告。要发布广告,我必须先登录,然后从该请求中提取Cookie并将其传递给发布广告的请求。到目前为止,广告已正确发布,但广告没有图片。Httpwebrequest上传文本和图像
public void PostProduct(Account account, Product product)
{
// Get login cookies
CookieCollection cookieCollection = GetLoginCookies(account);
request = InitializeRequest(request, "https://www.olx.ba/objava/zavrsi");
// Set the login cookies
foreach (Cookie c in response.Cookies)
{
request.CookieContainer.Add(c);
}
postData = Encoding.ASCII.GetBytes(UrlHelpers.ToQueryString(product));
request.ContentLength = postData.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(postData, 0, postData.Length);
}
response = (HttpWebResponse)request.GetResponse();
// responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
}
该网站有一个形式用于上载的图像和当我选择要上传的图片,这是由该形式提出的请求:
请求头
POST /objava/upload?s=RBDQpWEcUu HTTP/1.1
Host: www.olx.ba
Connection: keep-alive
Content-Length: 283041
Pragma: no-cache
Cache-Control: no-cache
Origin: https://www.olx.ba
X-File-Name: 2.jpg
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36
Content-Type: multipart/form-data; boundary=---WebKitFormBoundaryAczld5sbjrh0FX5q
Accept: application/json
X-Requested-With: XMLHttpRequest
Referer: https://www.olx.ba/objava
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.8,ro;q=0.6,de;q=0.4
Cookie: xxxxx
请求有效载荷
------WebKitFormBoundaryAczld5sbjrh0FX5q
Content-Disposition: form-data; name="myfile"; filename="2.jpg"
Content-Type: image/jpeg
------WebKitFormBoundaryAczld5sbjrh0FX5q--
我认为上传表单是来自dropzone.js,如果这有帮助的话。我怎样才能做这项工作?
但我在哪里发送它?我把它发送到我发送其他数据的地方?广告详细信息必须转到https://www.olx.ba/objava/zavrsi,图像转到https://www.olx.ba/objava/upload。你能给我一个例子吗?谢谢! – qpBlaze
以formdata发送2.jpg图像的数据URL。如果一切都很好,那么困扰服务器的唯一可能是** Content-Type **。尝试设置** Content-Type **:multipart/form-data;而不是image/jpeg。 –