Question

我使用RestTemplate在Spring中创建了应用程序，使用Rest-Template我正在使用一个外部Web服务，它的头部为Accept，如“application / json”。在我的Rest-Template中，我添加了标题但仍然给了我以下异常

org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [class com.site.Employee] and content type [application/octet-stream]

我的代码如下所示

    private static String BASE_URI = "http://localhost:8181/test/employee"

    final HttpHeaders requestHeaders = new HttpHeaders();
    requestHeaders.setAccept(Collections.singletonList(new MediaType("application", "json")));
    requestHeaders.setContentType(new MediaType("application", "json"));
    final HttpEntity<?> requestEntity = new HttpEntity<Object>(requestHeaders);

    final RestTemplate restTemplate = new RestTemplate();

    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
    restTemplate.getMessageConverters().add(new StringHttpMessageConverter());

    final ResponseEntity<Employee> responseEntity = restTemplate.exchange(BASE_URI, HttpMethod.GET, requestEntity, Employee.class);

任何人都可以告诉我一些解决方案吗

更新1

当我尝试以下代码时，它工作正常

final ResponseEntity<String> responseEntity = restTemplate.exchange(BASE_URI, HttpMethod.GET, requestEntity, String.class);
Employee employee = new ObjectMapper().readValue(responseEntity.getBody(), Employee.class);

Answer 1

您需要将application/octet-stream添加到MappingJackson2HttpMessageConverter中支持的mimetypes列表中：

final MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
mappingJackson2HttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_JSON, MediaType.APPLICATION_OCTET_STREAM));
restTemplate.getMessageConverters().add(mappingJackson2HttpMessageConverter);

Spring RestTemplate无法正常工作

1 个答案: