Java Https POST 因连接超时而失败，但适用于 Postman。谁能帮我吗？

Question

URL url = new URL(“My url”);
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
Base64EncoderDecoder encoder = new Base64EncoderDecoder();
String encoded = encoder.encodeToString(userName+”:”+password);
conn.setRequestProperty(AUTHORIZATION, BASIC + encoded);
conn.setRequestMethod(POST);
conn.setRequestProperty(CONTENT_TYPE, FORM_URL_ENCODED);        
conn.setConnectTimeout(10000);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.connect();

谁能告诉我我的代码有什么问题？

Answer 1

private static void getEmployees()
{
    final String uri = "http://localhost:8080/springrestexample/employees";

    RestTemplate restTemplate = new RestTemplate();

    HttpHeaders headers = new HttpHeaders();
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
    HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);

    ResponseEntity<String> result = restTemplate.exchange(uri, HttpMethod.GET, entity, String.class);

    System.out.println(result);
}

https://howtodoinjava.com/spring-boot2/resttemplate/spring-restful-client-resttemplate-example/