我只是阅读并测试了this精彩文章的代码,以便了解TCP客户端和服务器。
现在我需要(我希望)非常简单我需要从TCP客户端向TCP服务器发送一些字符串。
字符串是序列化对象,实际上它是XML。
我不明白我必须在TCP客户端和TCP服务器中包含此代码。
TCP客户端:
static void Main(string[] args)
{
while (true)
{
String server = "192.168.2.175"; // args[0]; // Server name or IP address
// Convert input String to bytes
byte[] byteBuffer = Encoding.ASCII.GetBytes("1024"); // Encoding.ASCII.GetBytes(args[1]);
// Use port argument if supplied, otherwise default to 8080
int servPort = 1311; // (args.Length == 3) ? Int32.Parse(args[2]) : 8080;//7 ;
TcpClient client = null;
NetworkStream netStream = null;
try
{
// Create socket that is connected to server on specified port
client = new TcpClient(server, servPort);
Console.WriteLine("Connected to server... sending echo string");
netStream = client.GetStream();
// Send the encoded string to the server
netStream.Write(byteBuffer, 0, byteBuffer.Length);
Console.WriteLine("Sent {0} bytes to server...", byteBuffer.Length);
int totalBytesRcvd = 0; // Total bytes received so far
int bytesRcvd = 0; // Bytes received in last read
// Receive the same string back from the server
while (totalBytesRcvd < byteBuffer.Length)
{
if ((bytesRcvd = netStream.Read(byteBuffer, totalBytesRcvd,
byteBuffer.Length - totalBytesRcvd)) == 0)
{
Console.WriteLine("Connection closed prematurely.");
break;
}
totalBytesRcvd += bytesRcvd;
}
Console.WriteLine("Received {0} bytes from server: {1}", totalBytesRcvd,
Encoding.ASCII.GetString(byteBuffer, 0, totalBytesRcvd));
}
catch (Exception ex)
{
// http://stackoverflow.com/questions/2972600/no-connection-could-be-made-because-the-target-machine-actively-refused-it
Console.WriteLine(ex.Message);
}
finally
{
if (netStream != null)
netStream.Close();
if (client != null)
client.Close();
}
Thread.Sleep(1000);
}
}
TCP服务器
class Program
{
private const int BUFSIZE = 32; // Size of receive buffer
static void Main(string[] args)
{
int servPort = 1311; // (args.Length == 1) ? Int32.Parse(args[0]) : 8080;
TcpListener listener = null;
try
{
// Create a TCPListener to accept client connections
listener = new TcpListener(IPAddress.Any, servPort);
listener.Start();
}
catch (SocketException se)
{
// IPAddress.Any
Console.WriteLine(se.ErrorCode + ": " + se.Message);
//Console.ReadKey();
Environment.Exit(se.ErrorCode);
}
byte[] rcvBuffer = new byte[BUFSIZE]; // Receive buffer
int bytesRcvd; // Received byte count
for (; ; )
{ // Run forever, accepting and servicing connections
// Console.WriteLine(IPAddress.Any);
TcpClient client = null;
NetworkStream netStream = null;
//Console.WriteLine(IPAddress.None);
try
{
client = listener.AcceptTcpClient(); // Get client connection
netStream = client.GetStream();
Console.Write("Handling client - ");
// Receive until client closes connection, indicated by 0 return value
int totalBytesEchoed = 0;
while ((bytesRcvd = netStream.Read(rcvBuffer, 0, rcvBuffer.Length)) > 0)
{
netStream.Write(rcvBuffer, 0, bytesRcvd);
totalBytesEchoed += bytesRcvd;
}
Console.WriteLine("echoed {0} bytes.", totalBytesEchoed);
// Close the stream and socket. We are done with this client!
netStream.Close();
client.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
netStream.Close();
}
}
}
}
答案 0 :(得分:2)
您提供的示例是一个简单的“镜像”,TCP服务器将客户端从其接收的数据发送回客户端。
您要发送的数据位于byteBuffer变量中(我相信您当前正在发送文本“1024”)。因此,不是使用“1024”初始化它,而是可以使用所需的XML序列化数据对其进行初始化。
相反,在客户端,不是将数据回送给客户端,而是可以在服务器端使用数据(即XML对象)执行任何操作。
答案 1 :(得分:2)
将我的评论转换为答案:
我强烈建议您使用WCF,而不是自己实现所有内容。在WCF中,您创建接口(服务合同)和实现(服务),框架将所有通信/协议详细信息抽象出来。
您可以使用WCF Duplex在服务器和客户端之间进行双向通信