java 反向代理

// 示例代码：使用Java的HttpURLConnection进行反向代理
import java.net.*;
import java.io.*;

public class ReverseProxy {
    public static void main(String[] args) throws IOException {
        URL backendUrl = new URL("http://backend-server:8080");
        HttpURLConnection connection = (HttpURLConnection) backendUrl.openConnection();
        connection.setRequestMethod("GET");

        int responseCode = connection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuffer response = new StringBuffer();

            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            System.out.println(response.toString());
        } else {
            System.out.println("GET request not worked");
        }
    }
}