C # Simulate Form form submit data, upload file

General form data submission

            Format of data submission//Data for general form string postdata = "abc= How can I write here?" &rd= "+ DateTime.Now.Ticks;
            byte[] postd = Encoding.UTF8.GetBytes (postdata);
            String slt = "";
            HttpWebRequest request = (HttpWebRequest) webrequest.create ("Http://wechat.tsingming.test/bind/GetImage"); Request.
            method = "POST"; Request.
            ContentType = "application/x-www-form-urlencoded"; The following comments are optional//request.
            Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; Request.
            KeepAlive = true; Request. useragent = "mozilla/5.0 (Windows NT 6.1;
            
            WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/31.0.1650.57 safari/537.36 "; Stream requeststream = Request.
            GetRequestStream ();
            requestStream.Write (postd, 0, postd.length);

            Requeststream.close (); HttpWebResponse response = (HttpWebResponse) request.
      GetResponse ();      StreamReader sr = new StreamReader (response.
            GetResponseStream (), Encoding.UTF8); SLT = Sr.
            ReadToEnd ();
			
			Return Content (SLT);
			 /**************************************************************///Received method string ABC = request["abc"];

Form form for submitting files

                HttpWebRequest Webreq = (HttpWebRequest) webrequest.create ("http://localhost:8080/upload.aspx");
                Webreq.method = "POST";
                Webreq.contenttype = "application/x-www-form-urlencoded";
                webreq.accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
                Webreq.keepalive = true; Webreq.useragent = "mozilla/5.0 (Windows NT 6.1;
                
                WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/31.0.1650.57 safari/537.36 ";
                String boundary = "----" + DateTime.Now.Ticks.ToString ("x"); String formdatatemplate = "--" + Boundary + "\r\ncontent-disposition:form-data; Name=\ "{0}\";
                Filename=\ "{1}\" \r\ncontent-type:application/octet-stream\r\n\r\n "; String datatemplate = "\r\n--" + boundary + "\r\ncontent-disposition:form-data;
                Name=\ "{0}\" \r\n\r\n{1} "; var formdata = string. Format (Formdatatemplate, "Filedata", NAMe/*path.getfilename (fileName) */); Webreq.contenttype = string. Format ("Multipart/form-data;
                boundary={0} ", boundary);
                File head var formdatabyte = Encoding.ASCII.GetBytes (Formdata);

                tail var footer = Encoding.ASCII.GetBytes ("\r\n--" + boundary + "--\r\n");
                Stream requeststream = Webreq.getrequeststream (); requestStream.Write (formdatabyte, 0, formdatabyte.length)//write file header requeststream.write (streambyte, 0, Stre ambyte.length)//write file var dataByte1 = Encoding.ASCII.GetBytes (string.
                Format (DataTemplate, "type", "Memberhead")); requestStream.Write (dataByte1, 0, databyte1.length)//write parameter 1 var dataByte2 = Encoding.ASCII.GetBytes (strin
                G.format (DataTemplate, "Tid", 48650)); requestStream.Write (dataByte2, 0, databyte2.length)//write parameter 2 var dataByte3 = Encoding.ASCII.GetBytes (strin G.format (DatatEmplate, "UID", 48650)); requestStream.Write (dataByte3, 0, databyte3.length)//write parameter 3 var dataByte4 = Encoding.ASCII.GetBytes (strin
                G.format (DataTemplate, "Filename", name)); requestStream.Write (dataByte4, 0, databyte4.length)//write parameter 4 var dataByte5 = Encoding.ASCII.GetBytes (strin
                G.format (DataTemplate, "Upload", "Submit Query")); requestStream.Write (dataByte5, 0, databyte5.length)//write Parameters 5 requeststream.write (footer, 0, footer. 

                
                LENGTH);//write Tail requeststream.close ();
                HttpWebResponse response = (HttpWebResponse) webreq.getresponse (); StreamReader sr = new StreamReader (response.
                GetResponseStream (), Encoding.UTF8); Slt. Message = Sr.
                ReadToEnd (); Sr.
                Close (); Response. Close ();

Get the transferred file

HttpPostedFileBase jpeg_image_upload = request.files["Filedata"];

Note: Form format for file submission (both: Request Payload)

Content-type:multipart/form-data; boundary=----------ch2ch2gi3km7gl6ae0gi3ae0gl6gl6

Request Payload
------------ CH2CH2GI3KM7GL6AE0GI3AE0GL6GL6
content-disposition:form-data name= "Filename"

chrysanthemum.jpg
--- ---------ch2ch2gi3km7gl6ae0gi3ae0gl6gl6
content-disposition:form-data name= "UID"

48650
----------- -CH2CH2GI3KM7GL6AE0GI3AE0GL6GL6
content-disposition:form-data name= "type"

memberhead
------------ CH2CH2GI3KM7GL6AE0GI3AE0GL6GL6
content-disposition:form-data name= "Filedata" filename= "Chrysanthemum.jpg"
content-type:application/octet-stream


------------ch2ch2gi3km7gl6ae0gi3ae0gl6gl6
Content-disposition:form-data; Name= "Upload"

Submit Query
------------ch2ch2gi3km7gl6ae0gi3ae0gl6gl6--

The data format is very heavy ....