使用Spring RestTemplate通过特定的网络接口发送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";

        // 发送GET请求并获取响应
        String result = restTemplate.getForObject(url, String.class);
        System.out.println("Response: " + result);
    }
}

import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.web.client.RestTemplate;

public class RestTemplatePostExample {
    public static void main(String[] args) {
        RestTemplate restTemplate = new RestTemplate();
        String url = "https://api.example.com/data";

        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);

        String requestBody = "{\"key\":\"value\"}";
        HttpEntity<String> request = new HttpEntity<>(requestBody, headers);

        // 发送POST请求并获取响应
        String result = restTemplate.postForObject(url, request, String.class);
        System.out.println("Response: " + result);
    }
}

SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
factory.setConnectTimeout(5000); // 设置连接超时时间为5秒
factory.setReadTimeout(5000);    // 设置读取超时时间为5秒
RestTemplate restTemplate = new RestTemplate(factory);

TrustManager[] trustAllCerts = new TrustManager[]{
    new X509TrustManager() {
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }
        public void checkClientTrusted(
            java.security.cert.X509Certificate[] certs, String authType) {}
        public void checkServerTrusted(
            java.security.cert.X509Certificate[] certs, String authType) {}
    }
};

SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

RestTemplate restTemplate = new RestTemplate();