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Windows Registry Editor Version 5.00 ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.jpg] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.jpeg] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.gif] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.png] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.bmp] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.tiff] @="PhotoViewer.FileAssoc.Tiff" ; Change Extension's File Type [HKEY_CURRENT_USER\Software\Classes\.ico] @="PhotoViewer.FileAssoc.Tiff" 保存为win10_get_photoviewer.reg 然后双击即可。

void Uploador::on_submit_photo_clicked() { QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType); QHttpPart _uid; _uid.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"uid\"")); _uid.setBody(uid.toUtf8()); multiPart->append(_uid); QHttpPart _key; _key.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"key\"")); _key.setBody("ABCD"); multiPart->append(_key); QHttpPart tit; tit.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"title\"")); tit.setBody(ui->lineEdit_title->text().toUtf8()); multiPart->append(tit); QHttpPart tags; tags.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"tags\"")); tags.setBody(ui->lineEdit_tag->text().toUtf8()); multiPart->append(tags); QHttpPart _filename; _filename.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"filename\"")); _filename.setBody(filename.toUtf8()); multiPart->append(_filename); QString ext = get_ext(filename); QHttpPart imagePart; imagePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant(ext)); imagePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"stream\"")); file = new QFile(); if(local.length() > 2) { file = new QFile(local); local_file = local; } else { local_file = tmp_folder+filename; file = new QFile(local_file); } file->open(QIODevice::ReadOnly); imagePart.setBodyDevice(file); file->setParent(multiPart); multiPart->append(imagePart); QUrl url("http://www.abc.com/client/api"); QNetworkRequest request(url); QNetworkAccessManager *mgr = new QNetworkAccessManager(); QNetworkReply *reply = mgr->post(request, multiPart); multiPart->setParent(reply); connect(mgr,SIGNAL(finished(QNetworkReply*)),this,SLOT(slot_requestFinished(QNetworkReply*))); }

public string upload_file(string web_api, string imgPath, Dictionary<string, string> ps) { string title = imgPath.Substring(imgPath.LastIndexOf("/") + 1); if (!File.Exists(imgPath)) { return "file_not_exists."; } FileStream fs = new FileStream(imgPath, FileMode.Open, FileAccess.Read); byte[] data = new byte[fs.Length]; fs.Read(data, 0, data.Length); fs.Close(); // Generate post objects Dictionary<string, object> postParameters = new Dictionary<string, object>(); postParameters.Add("fileformat", "jpg"); postParameters.Add("stream", new FormUpload.FileParameter(data, title, "image/jpeg")); foreach (KeyValuePair<string, string> kv in ps) { postParameters.Add(kv.Key, kv.Value); } postParameters.Add("usebinary", "1"); // Create request and receive response string userAgent = "Someone"; HttpWebResponse webResponse = FormUpload.MultipartFormDataPost(web_api, userAgent, postParameters); // Process response StreamReader responseReader = new StreamReader(webResponse.GetResponseStream()); string fullResponse = responseReader.ReadToEnd(); webResponse.Close(); return fullResponse; } public static class FormUpload { private static readonly Encoding encoding = Encoding.UTF8; public static HttpWebResponse MultipartFormDataPost(string postUrl, string userAgent, Dictionary<string, object> postParameters) { string formDataBoundary = String.Format("----------{0:N}", Guid.NewGuid()); string contentType = "multipart/form-data; boundary=" + formDataBoundary; byte[] formData = GetMultipartFormData(postParameters, formDataBoundary); return PostForm(postUrl, userAgent, contentType, formData); } private static HttpWebResponse PostForm(string postUrl, string userAgent, string contentType, byte[] formData) { HttpWebRequest request = WebRequest.Create(postUrl) as HttpWebRequest; if (request == null) { throw new NullReferenceException("request is not a http request"); } // Set up the request properties. request.Method = "POST"; request.ContentType = contentType; request.UserAgent = userAgent; request.CookieContainer = new CookieContainer(); request.ContentLength = formData.Length; // You could add authentication here as well if needed: // request.PreAuthenticate = true; // request.AuthenticationLevel = System.Net.Security.AuthenticationLevel.MutualAuthRequested; // request.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.Encoding.Default.GetBytes("username" + ":" + "password"))); // Send the form data to the request. using (Stream requestStream = request.GetRequestStream()) { requestStream.Write(formData, 0, formData.Length); requestStream.Close(); } return request.GetResponse() as HttpWebResponse; } private static byte[] GetMultipartFormData(Dictionary<string, object> postParameters, string boundary) { Stream formDataStream = new System.IO.MemoryStream(); bool needsCLRF = false; foreach (var param in postParameters) { // Thanks to feedback from commenters, add a CRLF to allow multiple parameters to be added. // Skip it on the first parameter, add it to subsequent parameters. if (needsCLRF) formDataStream.Write(encoding.GetBytes("\r\n"), 0, encoding.GetByteCount("\r\n")); needsCLRF = true; if (param.Value is FileParameter) { FileParameter fileToUpload = (FileParameter)param.Value; // Add just the first part of this param, since we will write the file data directly to the Stream string header = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\"\r\nContent-Type: {3}\r\n\r\n", boundary, param.Key, fileToUpload.FileName ?? param.Key, fileToUpload.ContentType ?? "application/octet-stream"); formDataStream.Write(encoding.GetBytes(header), 0, encoding.GetByteCount(header)); // Write the file data directly to the Stream, rather than serializing it to a string. formDataStream.Write(fileToUpload.File, 0, fileToUpload.File.Length); } else { string postData = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}", boundary, param.Key, param.Value); formDataStream.Write(encoding.GetBytes(postData), 0, encoding.GetByteCount(postData)); } } // Add the end of the request. Start with a newline string footer = "\r\n--" + boundary + "--\r\n"; formDataStream.Write(encoding.GetBytes(footer), 0, encoding.GetByteCount(footer)); // Dump the Stream into a byte[] formDataStream.Position = 0; byte[] formData = new byte[formDataStream.Length]; formDataStream.Read(formData, 0, formData.Length); formDataStream.Close(); return formData; } public class FileParameter { public byte[] File { get; set; } public string FileName { get; set; } public string ContentType { get; set; } public FileParameter(byte[] file) : this(file, null) { } public FileParameter(byte[] file, string filename) : this(file, filename, null) { } public FileParameter(byte[] file, string filename, string contenttype) { File = file; FileName = filename; ContentType = contenttype; } } }