import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
public class HttpClientExample {
public static void main(String[] args) {
try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
HttpGet httpGet = new HttpGet("https://api.example.com/data");
HttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity();
if (entity != null) {
String responseString = EntityUtils.toString(entity);
System.out.println(responseString);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class OkHttpExample {
public static void main(String[] args) {
OkHttpClient httpClient = new OkHttpClient();
Request request = new Request.Builder()
.url("https://api.example.com/data")
.build();
try (Response response = httpClient.newCall(request).execute()) {
System.out.println(response.body().string());
} catch (Exception e) {
e.printStackTrace();
}
}
}
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
public class SpringWebExample {
public static void main(String[] args) {
SpringApplication.run(SpringWebExample.class, args);
}
}
@RestController
@RequestMapping("/api")
public class ExampleController {
@GetMapping("/data")
public String getData() {
return "Hello, world!";
}
}
