在C#中,可以使用多进程和WebSocket技术来实现实时通信。这里是一个简单的示例,展示了如何在C#中使用多进程和WebSocket实现实时通信。
首先,我们需要创建一个WebSocket服务器。我们可以使用System.Net.WebSockets
命名空间中的HttpListener
类来实现一个简单的WebSocket服务器。以下是一个简单的WebSocket服务器示例:
using System;
using System.Net;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace WebSocketServer
{
class Program
{
static async Task Main(string[] args)
{
var server = new HttpListener();
server.Prefixes.Add("http://localhost:8080/");
server.Start();
while (true)
{
var context = await server.GetContextAsync();
if (context.Request.IsWebSocketRequest)
{
ProcessWebSocketRequest(context);
}
}
}
private static async void ProcessWebSocketRequest(HttpListenerContext context)
{
var webSocketContext = await context.AcceptWebSocketAsync(null);
var webSocket = webSocketContext.WebSocket;
var buffer = new byte[1024 * 4];
var result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
while (!result.CloseStatus.HasValue)
{
var message = Encoding.UTF8.GetString(buffer, 0, result.Count);
Console.WriteLine($"Received message: {message}");
// Echo the message back to the client
var echoMessage = Encoding.UTF8.GetBytes("Server received: " + message);
await webSocket.SendAsync(new ArraySegment<byte>(echoMessage), WebSocketMessageType.Text, true, CancellationToken.None);
result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
}
await webSocket.CloseAsync(result.CloseStatus.Value, result.CloseStatusDescription, CancellationToken.None);
}
}
}
接下来,我们需要创建一个客户端应用程序,该应用程序将连接到WebSocket服务器并发送和接收消息。以下是一个简单的客户端示例:
using System;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace WebSocketClient
{
class Program
{
static async Task Main(string[] args)
{
var client = new ClientWebSocket();
await client.ConnectAsync(new Uri("ws://localhost:8080"), CancellationToken.None);
Console.WriteLine("Connected to server. Type 'exit' to quit.");
var sendTask = Task.Run(async () =>
{
while (true)
{
var message = Console.ReadLine();
if (message == "exit")
{
break;
}
var bytes = Encoding.UTF8.GetBytes(message);
await client.SendAsync(new ArraySegment<byte>(bytes), WebSocketMessageType.Text, true, CancellationToken.None);
}
});
var receiveTask = Task.Run(async () =>
{
var buffer = new byte[1024 * 4];
var result = await client.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
while (!result.CloseStatus.HasValue)
{
var receivedMessage = Encoding.UTF8.GetString(buffer, 0, result.Count);
Console.WriteLine($"Server: {receivedMessage}");
result = await client.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
}
});
await Task.WhenAll(sendTask, receiveTask);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Client closed", CancellationToken.None);
}
}
}
现在,你可以运行WebSocket服务器和客户端应用程序。当客户端连接到服务器时,它们可以实时发送和接收消息。
为了实现多进程通信,你可以使用System.Diagnostics.Process
类来创建和管理子进程。以下是一个简单的示例,展示了如何在C#中使用多进程和WebSocket实现实时通信:
using System;
using System.Diagnostics;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MultiProcessWebSocketCommunication
{
class Program
{
static async Task Main(string[] args)
{
// Start the WebSocket server process
var serverProcess = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = "dotnet",
Arguments = "WebSocketServer.dll",
UseShellExecute = false,
RedirectStandardOutput = true,
CreateNoWindow = true
}
};
serverProcess.Start();
// Wait for the server to start
await Task.Delay(1000);
// Start the WebSocket client process
var clientProcess = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = "dotnet",
Arguments = "WebSocketClient.dll",
UseShellExecute = false,
RedirectStandardOutput = true,
CreateNoWindow = true
}
};
clientProcess.Start();
// Wait for the client to connect and communicate with the server
await Task.Delay(5000);
// Shut down the server and client processes
serverProcess.Kill();
clientProcess.Kill();
}
}
}
这个示例中,我们首先启动WebSocket服务器进程,然后等待一段时间以确保服务器已经启动。接下来,我们启动WebSocket客户端进程。最后,我们等待一段时间以让客户端与服务器进行通信,然后关闭这两个进程。
请注意,这个示例仅用于演示目的。在实际应用中,你可能需要根据你的需求对其进行修改和优化。
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