C#客户端与java服务器如何作SSL socket通讯

Question

C#客户端与java服务器如何作SSL socket通讯，有没有能实现的牛人给下代码例程看看

Answer 1

参考GPT和自己的思路，以下是建立 C# 客户端与 Java 服务器之间的 SSL socket 通讯的详细代码示例：

Java 服务器端代码：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import javax.net.ssl.SSLServerSocketFactory;
import javax.net.ssl.SSLSocketFactory;

public class SSLServer {
    public static void main(String[] args) throws Exception {
        int port = 8080;

        // 加载 SSL 证书
        System.setProperty("javax.net.ssl.keyStore", "server_keystore.jks");
        System.setProperty("javax.net.ssl.keyStorePassword", "password");

        // 创建 SSL socket 工厂
        SSLServerSocketFactory sslServerSocketFactory = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();

        // 创建服务器 socket
        ServerSocket serverSocket = sslServerSocketFactory.createServerSocket(port);

        System.out.println("服务器已启动，监听端口：" + port);

        while (true) {
            // 等待客户端连接
            Socket clientSocket = serverSocket.accept();

            System.out.println("客户端已连接：" + clientSocket.getInetAddress());

            // 创建输入输出流
            BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);

            // 从客户端读取消息
            String message = in.readLine();

            System.out.println("接收到客户端的消息：" + message);

            // 向客户端发送响应消息
            out.println("服务器响应：" + message);

            // 关闭流和客户端 socket
            in.close();
            out.close();
            clientSocket.close();
        }
    }
}

C# 客户端代码：

using System;
using System.IO;
using System.Net.Security;
using System.Net.Sockets;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
using System.Text;

public class SSLClient {
    public static void Main() {
        int port = 8080;

        // 创建 SSL 证书集合
        X509CertificateCollection certCollection = new X509CertificateCollection();
        certCollection.Add(new X509Certificate2("client_certificate.pfx", "password"));

        // 创建 SSL 流
        TcpClient client = new TcpClient("localhost", port);
        SslStream sslStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);

        // 客户端认证
        sslStream.AuthenticateAsClient("localhost", certCollection, SslProtocols.Tls12, false);

        Console.WriteLine("客户端已连接服务器");

        // 向服务器发送消息
        string message = "你好，服务器！";
        byte[] messageBytes = Encoding.UTF8.GetBytes(message);
        sslStream.Write(messageBytes);
        sslStream.Flush();

        Console.WriteLine("已向服务器发送消息：" + message);

        // 接收服务器的响应消息
        byte[] buffer = new byte[2048];
        int bytesRead = sslStream.Read(buffer, 0, buffer.Length);
        string response = Encoding.UTF8.GetString(buffer, 0, bytesRead);

        Console.WriteLine("接收到服务器的响应消息：" + response);

        // 关闭 SSL 流和客户端 socket
        sslStream.Close();
        client.Close();
    }

private static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) {
    if (sslPolicyErrors == SslPolicyErrors.None) {
        return true;
    }

    Console.WriteLine("SSL 证书验证失败：" + sslPolicyErrors);
    return false;
}