使用Java实现简单HTTP服务器（ServerSocket）

原创刺骨的言语ヽ痛彻心扉 2024-12-11 05:39 12阅读 0赞

在Java中，我们可以使用ServerSocket类来创建一个简单的HTTP服务器。以下是一个基本的示例：

```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class SimpleHttpServer {

private static final int PORT = 8000; // Change this to your desired port

public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = new ServerSocket(PORT);

System.out.println("HTTP Server is listening on port " + PORT + "...");

while (true) {
            Socket socket = serverSocket.accept();
            handleRequest(socket);
        }
    }

private static void handleRequest(Socket socket) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())));

OutputStream outputStream = socket.getOutputStream();

String requestLine;
        String method;
        String requestURI;

while ((requestLine = reader.readLine()) != null) {
            if (requestLine.startsWith("GET ")) {
                // Parse the request line into its components
                method = requestLine.substring(4, 9).trim();
                requestURI = requestLine.substring(10).trim();

System.out.println("Received GET request: " + requestURI);

// Send a response to the client
                outputStream.write("HTTP/1.1 200 OK\n").flush();
                outputStream.write("Content-Type: text/html\n").flush();
                outputStream.write("\n<!DOCTYPE html>\n<html>\n<head>\n<title>Response to GET Request</title>\n</head>\n<body>\n<h1>Hello, World!</h1>\n</body>\n</html>").flush(); // Send HTML response
            }
        }

socket.close();
    }
}
```

这段代码创建了一个简单的HTTP服务器，它监听8000端口。当收到GET请求时，服务器会返回一个包含"Hello, World!"的HTML响应。

请注意，这个示例只是为了演示如何使用ServerSocket来创建HTTP服务器。在实际应用中，你可能需要处理更多的HTTP方法、请求头和状态码等。