Java tutorial
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; import java.util.Set; public class MainClass { public static void main(String[] args) { try { URL url = new URL("http://www.java2s.com/"); URLConnection urlConnection = url.openConnection(); Map<String, List<String>> headers = urlConnection.getHeaderFields(); Set<Map.Entry<String, List<String>>> entrySet = headers.entrySet(); for (Map.Entry<String, List<String>> entry : entrySet) { String headerName = entry.getKey(); System.out.println("Header Name:" + headerName); List<String> headerValues = entry.getValue(); for (String value : headerValues) { System.out.print("Header value:" + value); } System.out.println(); System.out.println(); } InputStream inputStream = urlConnection.getInputStream(); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); String line = bufferedReader.readLine(); while (line != null) { System.out.println(line); line = bufferedReader.readLine(); } bufferedReader.close(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }