[英]C# Socket Server Continuously Reading
我刚刚制作了一个C#套接字服务器,它可以完美运行,但是如果我想使其能够侦听输入,则程序会崩溃。 我的问题是:如何在客户端命令后继续监听。
这是我的代码:
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace mc_server
{
class Program
{
private static TcpListener serverSocket;
private static TcpClient clientSocket;
private static StreamReader reader;
private static StreamWriter writer;
private static int PORT = 5000;
static void Main(string[] args)
{
Console.WriteLine(DateTime.Now.ToString() + " >> Server starting...");
StartServer();
Console.ReadKey(true);
serverSocket.Stop();
}
private static void StartServer()
{
try
{
serverSocket = new TcpListener(IPAddress.Any, PORT);
serverSocket.Start();
Console.WriteLine(DateTime.Now.ToString() + " >> Server started");
while (true)
{
clientSocket = serverSocket.AcceptTcpClient();
reader = new StreamReader(clientSocket.GetStream());
writer = new StreamWriter(clientSocket.GetStream());
StartListening();
}
}
catch (Exception e)
{
if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable())
Console.WriteLine(DateTime.Now.ToString() + " [ERR]: Internet connection unavailable! (" + e.ToString() + ")");
else
Console.WriteLine(DateTime.Now.ToString() + " [ERR]: Server can't be started! (" + e.ToString() + ")");
}
}
private static void StartListening()
{
try
{
string line;
//while (true)
//{
line = reader.ReadLine();
if (line.Contains("connected"))
{
Console.WriteLine(DateTime.Now.ToString() + " >> Remote connected");
}
else if (line.Contains("get_dir"))
{
Console.WriteLine("in_get_dir");
foreach (string directory in Directory.GetDirectories(path))
{
DirectoryInfo dir_name = new DirectoryInfo(directory);
string dirName = dir_name.Name;
writer.WriteLine(line);
}
}
//}
}
catch (Exception e)
{
Console.WriteLine(DateTime.Now.ToString() + " [ERR]: " + e.ToString() + ")");
}
}
}
}
非常感谢你的帮助! 此致,斯坦利。
我刚刚制作了一个C#套接字服务器,它可以完美运行,但是如果我想使其能够侦听输入,则程序会崩溃。
我不确定您的意思是什么,但我认为您在接收/读取回复时遇到问题。
serverSocket = new TcpListener(IPAddress.Any, PORT);
serverSocket.Start();
您已经创建了一个名为“ serverSocket”的TcpListener。 现在,让我们创建一个套接字,以帮助我们在服务器和客户端之间发送和接收数据。 创建Streamwriter和Streamreader太长且复杂。 您将不得不处理冲洗,处置和关闭它们。
这是我使用套接字进行通信的3个简化指南:
1.)创建一个套接字:
Socket socket = serverSocket.AcceptSocket(); // This is a
//synchronous function. It will not execute the next line until a client
//connects to the server
2.)发送数据:
socket.Send(Encoding.ASCII.GetBytes("I am sending a short text to
the client")); // This will send the text to client. It ONLY accepts byte
//array, therefore we have to convert it from string to byte array to be
//able
//to send it.
3.)接收/读取数据:
// For Receiving Text from the Client
byte[] responseByteArray = new byte[socket.ReceiveBufferSize]; //
//This will create a byte array to store the data. socket.ReceiveBufferSize
//will tells us the length of the data sent in byte array (not string yet)
int responseLength = socket.Receive(responseByteArray); // Tells us
//the length of the response in byte array (not string yet)
string response = null; // We will create a variable 'response' to
//store the final result of the conversion
for (int i = 0; i < responseLength; i++) // Loop to convert All byte
//from byte array to string
{
response = response + (char)responseByteArray[i]; // Converts
//every single byte of character to char
}
Console.WriteLine(response); // Prints out the final result in
//string
您可以使用async / await关键字在套接字上异步读取和写入数据。 这样,您的输入逻辑将保持独立。 如果使用异步/等待,则不必手动管理线程。
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