如何在Java中实现一个简单的HTTP服务器-蒲公英云

如何在Java中实现一个简单的HTTP服务器

在Java中实现一个简单的HTTP服务器，你可以使用Java的内置库，如javax.net.ssl和javax.servlet.http。以下是一个基本的HTTP服务器示例：

首先，创建一个ServerSocket来监听HTTP请求：

import java.io.*;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SimpleHttpServer {
    private static final int PORT = 8080; // Change this to your desired port
    public static void main(String[] args) throws IOException, ServletException {
        SSLContext sslContext = SSLContext.getInstance("SSL");
        sslContext.init(null, new SSLEngine[]{SSLEngine.create()}}, null);
        ServerSocket serverSocket = new ServerSocket(PORT);
        System.out.println("HTTP server started on port " + PORT);
        while (true) {
            Socket clientSocket = serverSocket.accept();
            System.out.println("Accepted connection from " + clientSocket.getRemoteSocketAddress()));
            Thread httpClientThread = new Thread(() -> handleRequest(clientSocket, sslContext))));
            httpClientThread.start();
        }
    }
    private static void handleRequest(Socket clientSocket, SSLContext sslContext) throws IOException {
        OutputStream outputStream = clientSocket.getOutputStream();
        PrintWriter printWriter = new PrintWriter(outputStream, true));
        HttpServletRequest request = new ServletRequestWrapper(printWriter, HttpServletRequest.class));
        HttpServletResponse response = new ServletResponseWrapperprintWriter(outputStream, true), HttpServletResponse.class);
        // Perform your actions here, such as reading data from the socket
        String httpMethod = request.getMethod();
        if (httpMethod.equalsIgnoreCase("GET")) {
            // Handle a GET request
            System.out.println("Received GET request");
            // Send response
            response.getWriter().println("Hello, this is a simple HTTP server response!");
        } else if (httpMethod.equalsIgnoreCase("POST"))) {
            // Handle a POST request
            System.out.println("Received POST request with data: " + request.getReader().readLine()));
            // Send response indicating successful handling of the request
            response.getWriter().println("POST request handled successfully!");
        }
        // Close resources when done
        request.close();
        response.close();
        clientSocket.close();
    }
}