使用TcpClient发送一个大字节并接收它

时间:2016-12-22 17:03:58

标签: c# tcpclient

我一直在寻找问题,但这些都是文件。

我的问题是:

如何在一个连接中发送/接收大字节(约1-2MB)?

客户端:

while($timecard_record = mysqli_fetch_assoc($timecard_data_results))
{
echo $timecard_record['company_id'] . $timecard_record['task_name'] .$timecard_record['task_start_time'];
echo "  " . $iteration . "<br>";
$iteration++;
}

服务器:

TcpClient tcpclnt = new TcpClient();
var result = tcpclnt.BeginConnect(User.IP, User.Port, null, null);

var success = result.AsyncWaitHandle.WaitOne(TimeSpan.FromSeconds(3));
if (!success)
{
    return "Failed to connect!";
}

Stream stm = tcpclnt.GetStream();

UTF8Encoding asen = new UTF8Encoding();

msg = Encrypter.EncryptData(msg);

byte[] ba = asen.GetBytes(msg);

stm.Write(ba, 0, ba.Length); // Switch this to?

SOLUTION:

服务器代码,花了我一点时间让它变得很酷:

System.Net.Sockets.Socket s = myList.AcceptSocket();
byte[] b = new byte[3000000];
int k = s.Receive(b); // Switch this to?
string message = Encoding.UTF8.GetString(b, 0, k);

客户端代码,它运行良好!:

System.Net.Sockets.Socket s = myList.AcceptSocket(); // Accept the connection

Stream stream = new NetworkStream(s); // Create the stream object
byte[] leng = new byte[4]; // We will put the length of the upcoming message in a 4 length array
int k2 = s.Receive(leng); // Receive the upcoming message length
if (BitConverter.IsLittleEndian)
{
    Array.Reverse(leng);
}
int upcominglength = (BitConverter.ToInt32(leng, 0)); // Convert it to int

byte[] b = ByteReader(upcominglength, stream); // Create the space for the bigger message, read all bytes until the received length!

string message = Encoding.UTF8.GetString(b, 0, b.Length); // Convert it to string!


internal byte[] ByteReader(int length, Stream stream)
{
    byte[] data = new byte[length];
    using (MemoryStream ms = new MemoryStream())
    {
        int numBytesRead;
        int numBytesReadsofar = 0;
        while (true)
        {
            numBytesRead = stream.Read(data, 0, data.Length);
            numBytesReadsofar += numBytesRead;
            ms.Write(data, 0, numBytesRead);
            if (numBytesReadsofar == length)
            {
                break;
            }
        }
        return ms.ToArray();
    }
}

0 个答案:

没有答案