homeworkHttpTask2NASA/src/main/java/NasaApodDownloader.java - master - Ersh/homeworkHttp

homeworkHttpTask2NASA/src/main/java/NasaApodDownloader.java
94 строки4 KB
Ersh
upload files
30 дек 2025, 15:05
30 дек 2025, 15:0575f78b4
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class NasaApodDownloader {
    public static void main(String[] args) {
        String apiKey = "DEMO_KEY";
        String apiUrl = "https://api.nasa.gov/planetary/apod?api_key=" + apiKey;

        try {
            CloseableHttpClient httpClient = HttpClientBuilder.create()
                    .setDefaultRequestConfig(RequestConfig.custom()
                            .setConnectTimeout(5000)
                            .setSocketTimeout(30000)
                            .setRedirectsEnabled(true)
                            .build())
                    .build();

            HttpGet apiRequest = new HttpGet(apiUrl);
            CloseableHttpResponse apiResponse = httpClient.execute(apiRequest);

            int statusCode = apiResponse.getStatusLine().getStatusCode();
            System.out.println("API Response status: " + statusCode);

            String jsonResponse = EntityUtils.toString(apiResponse.getEntity());
            System.out.println("API Response: " + jsonResponse);

            ObjectMapper mapper = new ObjectMapper();
            ApodResponse apod = mapper.readValue(jsonResponse, ApodResponse.class);

            System.out.println("\n===== APOD Information =====");
            System.out.println("Title: " + apod.getTitle());
            System.out.println("Date: " + apod.getDate());
            System.out.println("Media Type: " + apod.getMedia_type());
            System.out.println("URL: " + apod.getUrl());
            System.out.println("Copyright: " + apod.getCopyright());
            System.out.println("Explanation: " + apod.getExplanation());

            String imageUrl = apod.getUrl();
            String fileName = extractFileName(imageUrl);
            System.out.println("\n===== Downloading Image =====");
            System.out.println("Image URL: " + imageUrl);
            System.out.println("File name: " + fileName);

            HttpGet imageRequest = new HttpGet(imageUrl);
            CloseableHttpResponse imageResponse = httpClient.execute(imageRequest);

            int imageStatusCode = imageResponse.getStatusLine().getStatusCode();
            System.out.println("Image download status: " + imageStatusCode);

            byte[] imageBytes = EntityUtils.toByteArray(imageResponse.getEntity());
            System.out.println("Image size: " + imageBytes.length + " bytes");

            saveImageToFile(fileName, imageBytes);
            System.out.println("Image saved to: " + new File(fileName).getAbsolutePath());

            imageResponse.close();
            apiResponse.close();
            httpClient.close();

            File savedFile = new File(fileName);
            if (savedFile.exists()) {
                System.out.println("\n✓ File exists and ready to open!");
                System.out.println("File size: " + savedFile.length() + " bytes");
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String extractFileName(String url) {
        int lastSlashIndex = url.lastIndexOf('/');
        if (lastSlashIndex != -1) {
            return url.substring(lastSlashIndex + 1);
        }
        return "apod_image.jpg";
    }

    private static void saveImageToFile(String fileName, byte[] imageBytes) throws IOException {
        try (FileOutputStream fos = new FileOutputStream(fileName)) {
            fos.write(imageBytes);
        }
    }
}