springboot发送http请求

import org.springframework.web.client.RestTemplate;

public class RestTemplateExample {
    public static void main(String[] args) {
        RestTemplate restTemplate = new RestTemplate();
        String url = "https://api.example.com/data";
        String result = restTemplate.getForObject(url, String.class);
        System.out.println(result);
    }
}

import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;

public class WebClientExample {
    public static void main(String[] args) {
        WebClient webClient = WebClient.create();
        String url = "https://api.example.com/data";
        Mono<String> result = webClient.get()
            .uri(url)
            .retrieve()
            .bodyToMono(String.class);
        result.subscribe(System.out::println);
    }
}

RestTemplate restTemplate = new RestTemplateBuilder()
    .setConnectTimeout(Duration.ofSeconds(5))
    .setReadTimeout(Duration.ofSeconds(5))
    .build();