C# tcp client (ASCII)

Question

我正在尝试使用Tcp客户端读取服务器。要读取服务器，您需要发送命令。

命令(ASCII通信(：

Octet 001：SOH；Octet 002:访问代码："0〃-阅读"1〃-需要"2〃-使现代化Octet 003:STX；Octet 004-135:用于常规通信服务器/读取器的命令，将半字节到半字节转换为ASCII码，包括CRC；Octet136:ETX；Octet 137：LRC；

简单响应：

Octet 001：STX；Octet 002-517:常规通信服务器/读取器的简单响应，将半字节转换为ASCII码，包括CRC；Octet 518:ETX；Octet 519:LRC；

我的Tcp客户端代码：

static void Connect(String server, String message)
{

try
{                
// Create a TcpClient.
// Note, for this client to work you need to have a TcpServer
// connected to the same address as specified by the server, port
// combination.
Int32 port = 2180;

TcpClient client = new TcpClient(server, port);                
// Translate the passed message into ASCII and store it as a Byte array.
Byte[] data = System.Text.Encoding.ASCII.GetBytes(message);
// Get a client stream for reading and writing.
//  Stream stream = client.GetStream();
NetworkStream stream = client.GetStream();

// Send the message to the connected TcpServer.
stream.Write(data, 0, data.Length);

Console.WriteLine("Sent: {0}", message);
// Receive the TcpServer.response.
// Buffer to store the response bytes.
//data = new Byte[256];
data = new Byte[9];
// String to store the response ASCII representation.
String responseData = String.Empty;
// Read the first batch of the TcpServer response bytes.                
Int32 bytes = stream.Read(data, 0, data.Length);                
responseData = System.Text.Encoding.ASCII.GetString(data, 0, bytes);
Console.WriteLine("Received: {0}", responseData);
// Close everything.
stream.Close();
client.Close();
}
catch (ArgumentNullException e)
{
Console.WriteLine("ArgumentNullException: {0}", e);
}
catch (SocketException e)
{
Console.WriteLine("SocketException: {0}", e);
}
Console.WriteLine("n Press Enter to continue...");
Console.Read();
}

我的问题是，如何将这些命令转换为发送到服务器？我试过这个：

Connect("192.168.0.250", "0");
Connect("192.168.0.250", "1");
Connect("192.168.0.250", "2");

但没有服务器响应。

Answer 1

不确定，但试试这个：

try
{
TcpClient client = new TcpClient();
client.Connect(server, port);

byte[] data = new byte[256];
StringBuilder response = new StringBuilder();
NetworkStream stream = client.GetStream();

do
{
int bytes = stream.Read(data, 0, data.Length);
response.Append(Encoding.UTF8.GetString(data, 0, bytes));
}
while (stream.DataAvailable); // while data in stream

Console.WriteLine(response.ToString());
// close stream
stream.Close();
client.Close();
}
catch (SocketException e)
{
Console.WriteLine("SocketException: {0}", e);
}
catch (Exception e)
{
Console.WriteLine("Exception: {0}", e.Message);
}
Console.WriteLine("End...");
Console.Read();

你可以看到我的回购https://github.com/AkumaWalker/ClientServer使用TCP聊天工作：

1. 构建客户端和服务器控制台应用程序
2. 打开调试文件夹
3. 启动Server.exe
4. 启动Client.exe，然后输入名称和消息=>所有客户端和服务器都将接收消息