[FIXED] Spring: JSON to Java Object using @RequestBody

Issue

I'am working with spring Rest Web service.I'am not able to convert JSON to Java Object using @RequestBody.

Controller Method:

@RequestMapping(value="/test",method=RequestMethod.POST)
public @ResponseBody String test(@RequestBody Student s)
{

    System.out.print(s.getName()+s.getMark()+s.getRollNo());

    return "ok";
}

POJO class:

 public class Student implements Serializable {


private static final long serialVersionUID = 1L;
private int mark;
private String name;
private int rollNo;
    // getters and setters
  }

MessageConverter in Serlvet-context.xml:

    <beans:bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></beans:bean>
 <beans:bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<beans:property name="messageConverters">
  <beans:list>
    <beans:ref bean="jacksonMessageConverter"/>
  </beans:list>
</beans:property>
</beans:bean>

I am using POSTMAN rest client chrome plugin for calling the webservice. JSON object passed is:

{"mark":30,"name":"sam","rollNo":100}

I am getting '415 Unsupported Media Type' as response when calling the web service.

Please help. Thanks in advance!

Solution

The problem is in the way you are invoking the Controller for the POSTMAN client.

It's missing the Content-Type: application/json HTTP Header

Answered By - geoand
Answer Checked By - Clifford M. (JavaFixing Volunteer)