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POSpring REST: HttpMediaTypeNotSupportedException: Content type 'application/json;charset=UTF-8'
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  1. POSpring REST: HttpMediaTypeNotSupportedException: Content type 'application/json;charset=UTF-8'
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    copied!<p>I am getting the above error, due to a problem with Jackson attempting to deserialize my POJO.</p> <p>I've debugged the code and it returns false within Jackson's ObjectMapper:</p> <pre><code>public boolean canRead(Type type, Class&lt;?&gt; contextClass, MediaType mediaType) { JavaType javaType = getJavaType(type, contextClass); return (this.objectMapper.canDeserialize(javaType) &amp;&amp; canRead(mediaType)); } </code></pre> <p>this.objectMapper.canDeserialize(javaType) returns false which causes the error</p> <p>My Controller is as follows:</p> <pre><code>@Controller public class CancelController { @Autowired private CancelService cancelService; @RequestMapping( value="/thing/cancel", method=RequestMethod.POST, consumes="application/json" ) public @ResponseBody CancelThingResponseDTO cancelThing(@RequestBody CancelRequestDTO cancelThingRequest) { return cancelService.cancelThing(cancelThingRequest); } </code></pre> <p>My CancelRequestDTO implements Serializable:</p> <pre><code>public class CancelRequestDTO implements Serializable{ /** * Default serialization ID */ private static final long serialVersionUID = 1L; /** * Reason code associated with the request */ private final String reasonCode; /** * Identifier of the entity associated with the request */ private final EntityIdentifier entityIdentifier; /** * Default constructor * * @param reasonCode Reason code associated with the request * @param entityIdentifier Identifier of the entity associated with the request */ public CancelRequestDTO(String reasonCode, EntityIdentifier entityIdentifier) { super(); this.reasonCode = reasonCode; this.entityIdentifier = entityIdentifier; } /** * @return Returns the reasonCode. */ public String getReasonCode() { return reasonCode; } /** * @return Returns the entityIdentifier. */ public EntityIdentifier getEntityIdentifier() { return entityIdentifier; } } </code></pre> <p>My Spring configuration is as follow:</p> <pre><code>&lt;!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --&gt; &lt;!-- Enables the Spring MVC @Controller programming model --&gt; &lt;mvc:annotation-driven /&gt; &lt;!-- Scan for stereotype annotations --&gt; &lt;context:component-scan base-package="com.cancel.web.controller" /&gt; &lt;bean id="viewNameTranslator" class="org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator" /&gt; &lt;bean class="org.springframework.web.servlet.view.BeanNameViewResolver" /&gt; &lt;bean id="jsonView" class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" &gt; &lt;property name="contentType" value="application/json;charset=UTF-8"/&gt; &lt;/bean&gt; &lt;!-- Register JSON Converter for RESTful Web Service --&gt; &lt;bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"&gt; &lt;property name="messageConverters"&gt; &lt;list&gt; &lt;bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"&gt; &lt;/bean&gt; &lt;/list&gt; &lt;/property&gt; &lt;/bean&gt; </code></pre> <p></p> <p>Anyone know what might be causing this deserialization issue? </p> <p>Thanks</p>
 

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