SpringTemplate no suitable HttpMessageConverter found for response type

Question

I am getting the following error while using spring rest template but i have defined jackson for json responses.

As well when I query to the url with rest client i g

Answer 1

Default media type for MappingJackson2HttpMessageConverters is

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

You can specify media type for MappingJackson2HttpMessageConverter in your bean definition, like this

@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 wildcard

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