json SpringTemplate 没有找到适合响应类型的 HttpMessageConverter
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时间：2020-09-03 17:43:14 来源:igfitidea点击:
SpringTemplate no suitable HttpMessageConverter found for response type
提问by Gleeb
I am getting the following error while using spring rest template but i have defined Hymanson for json responses.
使用 spring 休息模板时出现以下错误，但我已为 json 响应定义了 Hymanson。
As well when I query to the url with rest client i get a good response.
同样，当我使用 rest 客户端查询 url 时，我得到了很好的响应。
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.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$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [tripadvisor.TripAdvisorResponse<java.util.List<model.external.tripadvisor.TripAdvisorLocation>>] and content type [text/javascript;charset=utf-8] at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:109) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:812) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:796) at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:576) at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:544) at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:495) at sync.service.location.LocationServiceImpl.syncTripAdvisorLocations(LocationServiceImpl.java:69) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.aop.interceptor.AsyncExecutionInterceptor.call(AsyncExecutionInterceptor.java:110) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
rest template configuration:
休息模板配置：
@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 MappingHymanson2HttpMessageConverter) { MappingHymanson2HttpMessageConverter jsonConverter = (MappingHymanson2HttpMessageConverter) 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; }
@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 MappingHymanson2HttpMessageConverter) { MappingHymanson2HttpMessageConverter jsonConverter = (MappingHymanson2HttpMessageConverter) 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; }
回答by mavarazy
Default media type for MappingHymanson2HttpMessageConverters is
MappingHymanson2HttpMessageConverters 的默认媒体类型是
/**
* Construct a new {@code BindingHymansonHttpMessageConverter}.
*/
public MappingHymanson2HttpMessageConverter() {
super(new MediaType("application", "json", DEFAULT_CHARSET));
}
You can specify media type for MappingHymanson2HttpMessageConverter in your bean definition, like this
您可以在 bean 定义中为 MappingHymanson2HttpMessageConverter 指定媒体类型，如下所示
@Bean
public RestTemplate restTemplate() {
RestTemplate restTemplate = new RestTemplate(httpRequestFactory());
List<HttpMessageConverter<?>> converters = restTemplate.getMessageConverters();
for (HttpMessageConverter<?> converter : converters) {
if (converter instanceof MappingHymanson2HttpMessageConverter) {
MappingHymanson2HttpMessageConverter jsonConverter = (MappingHymanson2HttpMessageConverter) converter;
jsonConverter.setObjectMapper(new ObjectMapper());
jsonConverter.setSupportedMediaTypes(ImmutableList.of(new MediaType("application", "json", MappingHymanson2HttpMessageConverter.DEFAULT_CHARSET), new MediaType("text", "javascript", MappingHymanson2HttpMessageConverter.DEFAULT_CHARSET)));
}
}
return restTemplate;
}
or using wildcard
或使用通配符
jsonConverter.setSupportedMediaTypes(ImmutableList.of(new MediaType("*", "json", MappingHymanson2HttpMessageConverter.DEFAULT_CHARSET), new MediaType("*", "javascript", MappingHymanson2HttpMessageConverter.DEFAULT_CHARSET)));
