Adds HttpClient example

src/main/java/es/uvigo/esei/dai/sockets/example5/ESEIHomeDownload.java

@@ -21,30 +21,26 @@
  */
 package es.uvigo.esei.dai.sockets.example5;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLConnection;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
 
 public class ESEIHomeDownload {
   public static void main(String[] args) {
     try {
-      final URL url = new URL("https://www.esei.uvigo.es");
+      final HttpClient client = HttpClient.newHttpClient();
 
-      final URLConnection connection = url.openConnection();
-      System.out.println(connection.getClass());
+      final HttpRequest request = HttpRequest.newBuilder()
+          .uri(URI.create("https://esei.uvigo.es"))
+          .GET()
+          .build();
 
-      try (BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
-        String line;
-        while ((line = br.readLine()) != null) {
-          System.out.println(line);
-        }
-      }
-    } catch (final MalformedURLException e) {
-      e.printStackTrace();
-    } catch (final IOException e) {
+      final HttpResponse<String> response = client
+          .send(request, HttpResponse.BodyHandlers.ofString());
+
+      System.out.println(response.body());
+    } catch (final Exception e) {
       e.printStackTrace();
     }
   }

src/main/java/es/uvigo/esei/dai/sockets/example6/ESEIHomeDownload.java

+package es.uvigo.esei.dai.sockets.example6;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+
+public class ESEIHomeDownload {
+  public static void main(String[] args) {
+    try {
+      final URL url = new URL("https://www.esei.uvigo.es");
+
+      final URLConnection connection = url.openConnection();
+      System.out.println(connection.getClass());
+
+      try (BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
+        String line;
+        while ((line = br.readLine()) != null) {
+          System.out.println(line);
+        }
+      }
+    } catch (final MalformedURLException e) {
+      e.printStackTrace();
+    } catch (final IOException e) {
+      e.printStackTrace();
+    }
+  }
+}
+