Soket 连接发送与接收

///url：地址     data：数据
 public static string GetContentFromUrl(string url, string data)
    {                               //寻址方案。ip4地址          // 套接字类型
        Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        
            IPEndPoint ip = new IPEndPoint(IPAddress.Parse(url), 端口);
            socket.Connect(ip);//连接
            char[] cmgs = data.ToCharArray(); //字符串转字符数组
            byte[] message = new byte[1024];
            message = Encoding.UTF8.GetBytes(data);
            socket.Send(message);   //发送数据
       
            byte[] bytes = new byte[1024];
            socket.Receive(bytes);   //接收数据
            string messages = Encoding.Default.GetString(bytes, 0, bytes.Length);

            return messages;   //返回数据
       
            socket.Close();
      


    }

　　

 /// <summary>
    /// 连接服务 接收大数据量
    /// </summary>
    /// <param name="url"></param>
    /// <param name="data"></param>
    /// <returns></returns>
    public static string GetContentFromUrl(string url, string data)
    {
        Socket sokClient = null;
        string Message = "";
        try
        {
           sokClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPAddress address = IPAddress.Parse(url);
            IPEndPoint point = new IPEndPoint(address, 8108);
            sokClient.Blocking = true;   //没有数据接受时挂起等待, 知道有数据时
            sokClient.Connect(point);

            char[] cmgs = data.ToCharArray(); //字符串转字符数组
            byte[] message = new byte[1024];
            message = Encoding.Default.GetBytes(data);
            sokClient.Send(message);



            byte[] totalBytes = null;
            int receiveLength = 0;
            do
            {
                byte[] buffer = new byte[1024];
                receiveLength = sokClient.Receive(buffer, buffer.Length,0);   //接受数据长度
                if (totalBytes == null)  //第一次接收数据
                {
                    totalBytes = new byte[receiveLength];      //声明byte
                     //从指定数组的 位置   复制到另一数组的指定位置
                    Buffer.BlockCopy(buffer, 0, totalBytes, 0, receiveLength);
                }
                else
                {
                    byte[] appendBytes = new byte[receiveLength];
                    Buffer.BlockCopy(buffer, 0, appendBytes, 0, receiveLength);
                    byte[] newTotalBytes = new byte[receiveLength + totalBytes.Length];
                    Buffer.BlockCopy(totalBytes, 0, newTotalBytes, 0, totalBytes.Length);
                    Buffer.BlockCopy(appendBytes, 0, newTotalBytes, totalBytes.Length, appendBytes.Length);
                    totalBytes = newTotalBytes;
                }
 


            } while (receiveLength > 0 && receiveLength == 1024);

            Message = Encoding.Default.GetString(totalBytes);

        
            return Message;
        }
        catch (Exception ex)
        {
            return ex.Message;
        }
        finally
        {
            sokClient.Close();
        }
}