Esempio n. 1
0
        public static string UploadFile(string Url, string path)
        {
            // 设置参数
            try
            {
                HttpWebRequest  request         = WebRequest.Create(Url) as HttpWebRequest;
                CookieContainer cookieContainer = new CookieContainer();
                request.CookieContainer   = cookieContainer;
                request.AllowAutoRedirect = true;
                request.Method            = "POST";
                string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
                request.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
                byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");
                byte[] endBoundaryBytes  = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
                int    pos      = path.LastIndexOf("\\");
                string fileName = path.Substring(pos + 1);

                //请求头部信息
                StringBuilder sbHeader        = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"file\";filename=\"{0}\"\r\nContent-Type:application/octet-stream\r\n\r\n", fileName));
                byte[]        postHeaderBytes = Encoding.UTF8.GetBytes(sbHeader.ToString());
                FileStream    fs   = new FileStream(path, FileMode.Open, FileAccess.Read);
                byte[]        bArr = new byte[fs.Length];
                fs.Read(bArr, 0, bArr.Length);
                fs.Close();

                Stream postStream = request.GetRequestStream();
                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
                postStream.Write(bArr, 0, bArr.Length);
                postStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
                postStream.Close();

                //发送请求并获取相应回应数据
                HttpWebResponse response = request.GetResponse() as HttpWebResponse;
                //直到request.GetResponse()程序才开始向目标网页发送Post请求
                Stream       instream = response.GetResponseStream();
                StreamReader sr       = new StreamReader(instream, Encoding.UTF8);

                //返回结果网页(html)代码
                string content = sr.ReadToEnd();
                Log.Info("upload ret: " + content);
                return(content);
            }
            catch (Exception e)
            {
                OfflineProcessor.AddEvent("fileupload", Url, path, DateTime.Now.ToString("yyyyMMddHHmmss"));
                Log.Error(e.Message);
                return("");
            }
        }
Esempio n. 2
0
        public static string doPost(string action, string data)
        {
            string data0 = "action=" + action + "&classid=" + Global.getClassID() + "&courseid=" + Global.getCourseID() + "&teacherid=" + Global.getTeacherID();

            if (data.IndexOf("lesson.get") < 0)
            {
                data0 += "&lessonid=" + Global.getLessonID();
            }
            if (data.IndexOf("schoolid=") < 0)
            {
                data0 += "&schoolid=" + Global.getSchoolID();
            }
            data = data0 + "&" + data;

            string tm          = DateTime.Now.ToString("yyyyMMddHHmmss");
            string src         = tm + "_" + Global.getSchoolID() + "_" + Global.getClassID() + "_" + KEY;
            string sign        = GetMD5(src);
            string url         = Global.url_assistant + "s=" + Global.getSchoolID() + "&r=0&classid=" + Global.getClassID() + "&t=" + tm + "&c=" + sign;
            string ret         = "";
            string keyTemp     = sign.Substring(4, 16);
            string dataEncrypt = AesEncrypt(data, keyTemp);//跟java的substring不一样

            string retCrypt = HTTPReq.HttpPost(url, dataEncrypt);

            ret = AesDecrypt(retCrypt, keyTemp);
            if (ret.Length == 0)
            {
                OfflineProcessor.AddEvent(action, url, data, tm);
            }
            Log.Info("doPost: data=" + data);
            Log.Debug("ret=" + ret);

            if (data.IndexOf("lesson.get") > 0)
            {
                handleGetLessonResponse(ret);
            }
            else if (data.IndexOf("handon") > 0 && Global.getLessonID() == 0)
            {
                handleGetLessonResponse(ret);
            }

            if (ret == null)
            {
                ret = "";
            }
            return(ret);
        }