我们如何使用JAVA下载HTML页面？

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class DownloadHTMLPage {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            connection.setRequestProperty("User-Agent", "Mozilla/5.0");
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuilder htmlContent = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                htmlContent.append(line);
            }
            reader.close();
            System.out.println(htmlContent.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

   <groupId>org.jsoup</groupId>
   <artifactId>jsoup</artifactId>
   <version>1.14.3</version>
</dependency>

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

import java.io.IOException;

public class DownloadHTMLPage {
    public static void main(String[] args) {
        try {
            Document document = Jsoup.connect("https://example.com").userAgent("Mozilla/5.0").get();
            String htmlContent = document.toString();
            System.out.println(htmlContent);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}