415 Unsupported Media Type with Spring 3.2

Question

I\'m trying to insert and/or update data into the database using the PUT method via JSON using jQuery 1.6, (Jackson 2.1.1 and Spring 3.

Answer 1

In the server side, in Spring 3, you need this:

<bean id = "mappingJacksonHttpMessageConverter" class = "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />

<!-- starting Spring MVC annotation usage，handling request and annotation pojo mapping-->
<bean class ="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >
    <property name= "messageConverters" >
         <list>
            <ref bean= "mappingJacksonHttpMessageConverter"/>
         </list>
    </property>
</bean>

Spring 4 uses mappingJackson2HttpMessageConverter. Without AnnotationMethodHandlerAdapter bean declaration, you can also use @RequestBody, while by declaring it we can set mappingJackson2HttpMessageConverter to messageConverters. This is concluded by phenomena that I observed, if wrong please correct.

Answer 2

Just in case somebody encounters this: I had two Methods

void setLevel (Level level) void setLevel (String level)

in the Class annotated with @RequestBody and that also caused a 415.

Answer 3

The content type that the browser sends, Content-Type: application/json, does not seem to match @RequestBody final MultiValueMap<String, String > data.

Either:

• Send application/x-www-form-urlencoded (in which case you could easier use HttpPutFormContentFilter instead).

• Or: change this into something like @RequestBody final MyDTO data as explained in JQuery, Spring MVC @RequestBody and JSON - making it work together.

Answer 4

I think your browser is not supporting whatever your returning. An explaination of an HTTP 415 seems to indicate this. What is the server sending as the Content-Type in the response?

Answer 5

I had the same problem, the way to solve it was removing @RequestBody and then taking the data from the request (with IOUtils from apache commons). It should be noted that I used the received data just for logging js errors.

/**
 * this method logs with log4j the received js errors 
 */
@RequestMapping(value = "/jsloggerservice/{applicationName}", method = RequestMethod.POST)
public void jsLogger(HttpServletRequest request, HttpServletResponse response) {
    try {
        String message = IOUtils.toString( request.getInputStream());
        log.info("JAVASCRIPT-ERROR: " + message);
        response.getWriter().write("OK");
    } 
    catch (UnsupportedEncodingException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}