Pobieranie Stringa

src/main/java/pobieranie/Pobieranie3_HttpClient_String.java

+package pobieranie;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandlers;
+
+public class Pobieranie3_HttpClient_String {
+
+	public static void main(String[] args) {
+		final String adres = "http://api.nbp.pl/api/exchangerates/tables/A/?format=json"; // spróbuj xml
+
+		try {
+			URI uri = new URI(adres);
+			HttpClient client = HttpClient.newHttpClient();
+			HttpRequest request = HttpRequest.newBuilder(uri).build();
+			HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
+			System.out.println("response: " + response);
+			System.out.println("status: " + response.statusCode());
+			System.out.println("Content-Type: " + response.headers().firstValue("content-type").orElse("--"));
+//			if(response.statusCode() != 200) {
+//				return;
+//			}
+			// body jest takiego typu, jaki wynika z użytego BodyHandler
+			String body = response.body();
+			System.out.println("Długość stringa: " + body.length());
+			System.out.println(body);
+		} catch (IOException | URISyntaxException | InterruptedException e) {
+			e.printStackTrace();
+		}
+	}
+
+}