c#-http-2-linux

 string infoOne = "<Request>" +
                "<MessageHeader><Sender>LIS</Sender><Receiver>DCIS</Receiver>" +
                   "<SendTime>"+ timeNow + "</SendTime>" +
                   "<EventType>REPORT_UPLOAD</EventType>" +
                   "<MsgId>"+ Guid.NewGuid().ToString() + "</MsgId></MessageHeader>" +
                   "<MessageBody>" +
                   "<ReportInfo><PatientId>"+ LisTestDto.Pat_Id+ "</PatientId>" +
                   
                   "</MessageBody></Request>";

byte[] reportImg = reportMogo.ReportImg;
//重点: 去除bom
 Encoding end = new UTF8Encoding(false);
string ret = HttpUploadFile("http://-----/api/report/upload", files,
                new Dictionary<string, string>(), end, infoOne, reportImg);
            



 public string HttpUploadFile(string url, string[] files, Dictionary<string, string> data, Encoding encoding,
            string xmlInfoOnProgram, byte[] reportImg)
        {
            try
            {
                //必须
                string boundary = DateTime.Now.Ticks.ToString("X");
                //必须的

                //form 开始标志
                byte[] boundarybytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");

                //form 结尾标志
                byte[] endbytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");

                //1.HttpWebRequest
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                
                request.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
                request.Method = "POST";
                request.KeepAlive = true;
                request.Credentials = CredentialCache.DefaultCredentials;
                
                using (Stream stream = request.GetRequestStream())
                {
                    //传递参数模板 Content-Disposition:form-data;name=\"{0}\"\r\n\r\n{1}
                    //1.1 key/value
                    string formdataTemplate = "Content-Disposition:form-data;name=\"{0}\"\r\n\r\n{1}";
                    //传递参数  此场景没用到这里
                    if (data != null)
                    {
                        foreach (string key in data.Keys)
                        {
                            //传递参数开始标识
                            stream.Write(boundarybytes, 0, boundarybytes.Length);

                            string formitem = string.Format(formdataTemplate, key, data[key]);

                            byte[] formitembytes = encoding.GetBytes(formitem);

                            stream.Write(formitembytes, 0, formitembytes.Length);
                        }
                    }

                    //上传文件模板
                    //1.2 file
                    string headerTemplate = "Content-Disposition:form-data;name=\"{0}\";filename=\"{1}\"\r\nContent-Type:application/octet-stream\r\n\r\n";

                    //byte[] buffer = new byte[6 * 1024 * 1024];
                    
                    for (int i = 0; i < files.Length; i++)
                    {
                        //上传文件标识
                        stream.Write(boundarybytes, 0, boundarybytes.Length);

                        //files[1] = "C:\\LikeD\\ReportInfo.xml";
                        //files[0] = "C:\\LikeD\\Report.pdf";
                        string header = string.Format(headerTemplate, i == 1 ? "ReportInfo" : "Report", Path.GetFileName(files[i]));

                        byte[] headerbytes = encoding.GetBytes(header);

                        stream.Write(headerbytes, 0, headerbytes.Length);

                        //将文件流读入到请求流中 读取本地用
                        //using (FileStream fileStream = new FileStream(files[i], FileMode.Open, FileAccess.Read))
                        //{
                        byte[] buffer = new byte[6 * 1024 * 1024];
                        if (files[i].Contains("ReportInfo"))
                        {
                            
                            byte[] infoOneBytes = encoding.GetBytes(xmlInfoOnProgram);
                            stream.Write(infoOneBytes, 0, infoOneBytes.Length);
                        }
                        else {
                            stream.Write(reportImg, 0, reportImg.Length);
                        }
                        //}
                    }

                    //form 结束标志
                    //1.3 form end
                    stream.Write(endbytes, 0, endbytes.Length);
                }
                
                //2.WebResponse
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                using (StreamReader stream = new StreamReader(response.GetResponseStream()))
                {

                    string result = stream.ReadToEnd();
                    return result;
                }
            }catch(Exception ex)
            {
                Logger.Error("localpdf" + ex.Message + Environment.NewLine + ex.StackTrace);
                return "";
            }
        }