SpringTemplate no suitable HttpMessageConverter found for response type

Question

I get the following error when using spring rest pattern, but I defined jackson for json responses.

Also, when I request a URL with a dormant client, I get a good response.

org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [tripadvisor.TripAdvisorResponse<java.util.List<model.external.tripadvisor.TripAdvisorLocation>>] and content type [text/javascript;charset=utf-8] at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:109) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:812) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:796) at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:576) at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:544) at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:495) at sync.service.location.LocationServiceImpl.syncTripAdvisorLocations(LocationServiceImpl.java:69) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.aop.interceptor.AsyncExecutionInterceptor$1.call(AsyncExecutionInterceptor.java:110) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 

rest pattern configuration:

 @Bean public ClientHttpRequestFactory httpRequestFactory() { return new HttpComponentsClientHttpRequestFactory(httpClient()); } @Bean public RestTemplate restTemplate() { RestTemplate restTemplate = new RestTemplate(httpRequestFactory()); List<HttpMessageConverter<?>> converters = restTemplate.getMessageConverters(); for (HttpMessageConverter<?> converter : converters) { if (converter instanceof MappingJackson2HttpMessageConverter) { MappingJackson2HttpMessageConverter jsonConverter = (MappingJackson2HttpMessageConverter) converter; jsonConverter.setObjectMapper(new ObjectMapper()); } } return restTemplate; } @Bean public HttpClient httpClient() { PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(); CloseableHttpClient closeableHttpClient = HttpClientBuilder.create().setConnectionManager(connectionManager).build(); connectionManager.setMaxTotal(DEFAULT_MAX_TOTAL_CONNECTIONS); connectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_CONNECTIONS_PER_ROUTE); connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost("facebook.com")), 20); connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost("twitter.com")), 20); connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost("linkedin.com")), 20); connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost("viadeo.com")), 20); connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost("api.tripadvisor.com")), 20); return closeableHttpClient; } 

Answer 1

Default Media Type for MappingJackson2HttpMessageConverters

 /** * Construct a new {@code BindingJacksonHttpMessageConverter}. */ public MappingJackson2HttpMessageConverter() { super(new MediaType("application", "json", DEFAULT_CHARSET)); } 

You can specify the media type for MappingJackson2HttpMessageConverter in a bean definition, for example

 @Bean public RestTemplate restTemplate() { RestTemplate restTemplate = new RestTemplate(httpRequestFactory()); List<HttpMessageConverter<?>> converters = restTemplate.getMessageConverters(); for (HttpMessageConverter<?> converter : converters) { if (converter instanceof MappingJackson2HttpMessageConverter) { MappingJackson2HttpMessageConverter jsonConverter = (MappingJackson2HttpMessageConverter) converter; jsonConverter.setObjectMapper(new ObjectMapper()); jsonConverter.setSupportedMediaTypes(ImmutableList.of(new MediaType("application", "json", MappingJackson2HttpMessageConverter.DEFAULT_CHARSET), new MediaType("text", "javascript", MappingJackson2HttpMessageConverter.DEFAULT_CHARSET))); } } return restTemplate; } 

or using a wildcard

 jsonConverter.setSupportedMediaTypes(ImmutableList.of(new MediaType("*", "json", MappingJackson2HttpMessageConverter.DEFAULT_CHARSET), new MediaType("*", "javascript", MappingJackson2HttpMessageConverter.DEFAULT_CHARSET)));