private string ProcessData(string data)
        {
            context context = JsonConvert.DeserializeObject <context>(data);

            if (context.Mode == "Post")
            {
                if (context.Function == "Insertreport")
                {
                    DataModel dm = JsonConvert.DeserializeObject <DataModel>(context.Content.ToString());
                    //var dm = context.Content as DataModel;
                    bool res = false;
                    try
                    {
                        ReportDal rd = new ReportDal();
                        res = rd.Insertreport(dm.name, dm.content, dm.path, dm.timeCreate, dm.timeModify, dm.timeAccess);
                    }
                    catch (Exception e)
                    {
                        File.AppendAllLines(path, new string[] { $"{DateTime.Now.ToLongTimeString()}:操作数据库 Insertreport 异常:{e.ToString()} ." });
                        //throw;
                    }

                    context.Content = res ? "Success" : "Failure";

                    string restr = JsonConvert.SerializeObject(context);
                    return(restr);
                }

                return("");
            }

            if (context.Mode == "Get")
            {
                if (context.Function == "GetReportSingleContent")
                {
                    var name = context.Content as string;
                    //object res = null;
                    byte[] bytes = null;
                    try
                    {
                        ReportDal rd  = new ReportDal();
                        var       res = rd.GetReportSingleContent(name);
                        bytes = res as byte[];
                    }
                    catch (Exception e)
                    {
                        File.AppendAllLines(path, new string[] { $"{DateTime.Now.ToLongTimeString()}:操作数据库 GetReportSingleContent 异常:{e.ToString()} ." });
                        //throw;
                    }
                    string restr2 = JsonConvert.SerializeObject(bytes);
                    context.Content = restr2;
                    string restr = JsonConvert.SerializeObject(context);
                    return(restr);
                }
                else if (context.Function == "GetReportSingle")
                {
                    var     name = context.Content as string;
                    DataSet res  = null;
                    try
                    {
                        ReportDal rd = new ReportDal();
                        res = rd.GetReportSingle(name);
                    }
                    catch (Exception e)
                    {
                        File.AppendAllLines(path, new string[] { $"{DateTime.Now.ToLongTimeString()}:操作数据库 GetReportSingle 异常:{e.ToString()} ." });
                        //throw;
                    }
                    string restr2 = JsonConvert.SerializeObject(res);
                    context.Content = restr2;
                    string restr = JsonConvert.SerializeObject(context);
                    return(restr);
                }
                else if (context.Function == "GetreportLimitN")
                {
                    var     dm  = Convert.ToInt32(context.Content);
                    DataSet res = null;
                    try
                    {
                        ReportDal rd = new ReportDal();
                        res = rd.GetreportLimitN(dm);
                    }
                    catch (Exception e)
                    {
                        File.AppendAllLines(path, new string[] { $"{DateTime.Now.ToLongTimeString()}:操作数据库 GetreportLimitN 异常:{e.ToString()} ." });
                        //throw;
                    }
                    string restr2 = JsonConvert.SerializeObject(res);
                    context.Content = restr2;
                    string restr = JsonConvert.SerializeObject(context);
                    return(restr);
                }
                return("");
            }

            throw new NotImplementedException();
        }