java - Resttemplate 404 未找到

Question

我正在尝试通过这种方式将帖子发送到休息服务:

 RestTemplate restTemplate = new RestTemplate();
    String url = "http://myadress/rest/student.php";
    HttpHeaders headers = new HttpHeaders();
    headers.add("TIMESTAMP", time);
    headers.add("BASEKEY", hexIv);
    headers.add("ACCESSKEY",accessKey);
    headers.add("SIGNATURE",signature);
    headers.setContentType(MediaType.APPLICATION_JSON);
    HttpEntity<String> entity = new HttpEntity<String>(studentsEncrypted,headers);
    String answer = restTemplate.postForObject(url, entity, String.class);

Exception in thread "main" org.springframework.web.client.HttpClientErrorException: 404 Not Found

此错误是否仅在未找到目的地的服务时触发？

Answer 1

不，此异常 (org.springframework.web.client.HttpClientErrorException) 专用于表示客户端错误响应的所有 HTTP 响应代码(4xx 系列)。参见例如:https://developer.mozilla.org/en-US/docs/Web/HTTP/Status 。所以也可能是授权错误。