求救~socket自定义TCP传输文件，只能接收4M内容，后面的数据库包获取不到啊

求救~socket 文件接收只能获得4M内容，后面的数据库包获取不到啊.

我捣鼓这个问题弄了一个星期了，实在搞不明白。真是没办法了，所以推上首页问问。阿弥陀佛

这是两个方法：

        /// <summary>
        /// 获取标示
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static byte[] ReceiveVarFlag(Socket s)
        {
            int recv;
            byte[] datasize = new byte[4];
            recv = s.Receive(datasize, 0, 4, SocketFlags.None);
            return datasize;
        }

        /// <summary>
        /// 按照长度获取内容
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static byte[] ReceiveVarContent(Socket s,int len)
        {
            int recv;
            byte[] datasize = new byte[len];
            recv = s.Receive(datasize, 0, len, SocketFlags.None);
            return datasize;
        }

这是main函数：

static string filesfolder = "c:\\xxx\\";
        static void Main(string[] args)
        {
  
            int port = 12345;
            //string hostip = "127.0.0.1";
            //IPAddress ip = IPAddress.Parse(hostip);
            IPEndPoint ipe = new IPEndPoint(IPAddress.Any, port);
            Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            s.Bind(ipe);
            s.Listen(0);
            Console.WriteLine("Waitforconnect");
            while (true)
            {
                int packsiez = 4;
                Socket temp = s.Accept();
                byte[] biaoshi = new byte[4];
                byte[] nssid = new byte[4];
                byte[] urllen = new byte[4];
               
                byte[] filelen = new byte[4];
                
                //------------

                //------------

                biaoshi = ReceiveVarFlag(temp);
                nssid = ReceiveVarFlag(temp);
                urllen = ReceiveVarFlag(temp);
                int _urllen = BitConverter.ToInt32(urllen, 0);
                byte[] urlcontent = new byte[_urllen];
                urlcontent = ReceiveVarContent(temp, _urllen);
                filelen = ReceiveVarFlag(temp);

                int _biaoshi = BitConverter.ToInt32(biaoshi, 0);
                int _nssid = BitConverter.ToInt32(nssid, 0);
                string _urlcontent = Encoding.Default.GetString(urlcontent);
                Random r = new Random();
                string filename = DateTime.Now.ToString("yyyyMMddHHmmss") + r.Next();
                


                int _filelen = BitConverter.ToInt32(filelen, 0);

                int rescount = _filelen / packsiez;
                int lastpacksizi = _filelen % packsiez;
                if (lastpacksizi!=0)
                {
                    rescount++;
                }
                string SendFileName = filesfolder + filename + ".rar";
                int wcount=0;
                using (FileStream MyFileStream = new FileStream(SendFileName, FileMode.Create, FileAccess.Write))
                {
                    for (int i = 0; i <rescount; i++)
                    {
                        if (temp.Connected)
                        {
                            if (i==rescount-1)
                            {
                                packsiez = lastpacksizi;
                            }
                            byte[] t=new byte[packsiez];
                            int counts= temp.Receive(t, 0, packsiez, SocketFlags.None);
                            if (counts==0)
                            {
                                break;
                            }
                            MyFileStream.Write(t, 0, packsiez);
                            wcount+=packsiez;
                            t = null;
                        }
                        else
                        {
                            break;
                        }
                    }
                }
                Console.WriteLine("-----------------------------------------------");
                Console.WriteLine("包总长:" + _filelen.ToString() +"保存:" + wcount );
                Console.WriteLine("文件内容写入:" + SendFileName);
                WriteInfos(_biaoshi, _nssid, _urllen, _urlcontent, filename);        //写入日志信息
        
            }
        }

我每次大概只能获得4100KB的东西。

如果不退出，继续获取，那么获得的全是空。最后用UE看文件，文件大小是对上了，但是后半截内容全是0x00