1import java.net.URI;
2import java.net.http.HttpClient;
3import java.net.http.HttpRequest;
4import java.net.http.HttpResponse;
5
6public class HttpClientExample {
7    public static void main(String[] args) throws Exception {
8        HttpClient client = HttpClient.newHttpClient();
9        HttpRequest request = HttpRequest.newBuilder()
10            .uri(new URI("https://api.example.com/data"))
11            .GET()
12            .build();
13
14        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
15
16        System.out.println(response.statusCode());
17        System.out.println(response.body());
18    }
19}

1import org.apache.http.HttpEntity;
2import org.apache.http.client.methods.CloseableHttpResponse;
3import org.apache.http.client.methods.HttpGet;
4import org.apache.http.impl.client.CloseableHttpClient;
5import org.apache.http.impl.client.HttpClients;
6import org.apache.http.util.EntityUtils;
7
8public class ApacheHttpClientExample {
9    public static void main(String[] args) throws Exception {
10        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
11            HttpGet request = new HttpGet("https://api.example.com/data");
12            try (CloseableHttpResponse response = httpClient.execute(request)) {
13                HttpEntity entity = response.getEntity();
14                if (entity != null) {
15                    System.out.println(EntityUtils.toString(entity));
16                }
17            }
18        }
19    }
20}

1import okhttp3.OkHttpClient;
2import okhttp3.Request;
3import okhttp3.Response;
4
5import java.io.IOException;
6
7public class OkHttpExample {
8    public static void main(String[] args) throws IOException {
9        OkHttpClient client = new OkHttpClient();
10
11        Request request = new Request.Builder()
12            .url("https://api.example.com/data")
13            .build();
14
15        try (Response response = client.newCall(request).execute()) {
16            System.out.println(response.body().string());
17        }
18    }
19}

1import javax.ws.rs.client.Client;
2import javax.ws.rs.client.ClientBuilder;
3import javax.ws.rs.client.WebTarget;
4import javax.ws.rs.core.MediaType;
5
6public class JaxRsClientExample {
7    public static void main(String[] args) {
8        Client client = ClientBuilder.newClient();
9        WebTarget target = client.target("https://api.example.com/data");
10
11        String response = target.request(MediaType.APPLICATION_JSON).get(String.class);
12        System.out.println(response);
13    }
14}