request - How to post JSON in Spring MVC -

my controller , model classes below:

@controller @requestmapping("/apkinfo") public class apkinfocontroller {     public @responsebody string registerapk(@requestbody apkinforeq req){          //do   } }  public class apkinfo implements serializable {       private string deviceid;      private list<apkinfo> apkinfo;       //gettters , setters }  public class apkinfo  implements serializable {       private string appname;      private string packagename;      private string version;      private date installdate; } 

then tried post data server using jquery ajax.

var param = {    deviceid: '1234',    apkinfo: [       {appname:'a', packagename:'a.a', version: '1', installdate:"2013-05-03 10:00:00"},       {appname:'b', packagename:'a.b', version: '2', installdate:"2013-05-03 10:00:00"}     ] }  $.ajax({     type: 'post',     url : 'to_my_server_url',     contenttype: 'application/json',     datatype: 'json',     data: param,     error: function(){},     success: function(data){         //do     }  }) 

but getting error 'unspported mediatype'. have jackson mapping setting in applicationcontext.xml , @responsebody of other mothods work fine.

applicationcontext.xml

<context:component-scan base-package: "xx.xx.xxxxx.xx"; <contex:annotation-config /> <mvc:annotation-driven />  <bean id="jacksonmappingconverter"    class="org.springframework.htttp.converter.json.mappingjacksonhttpmessageconverter">  <bean class="org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter">     <property name="messageconverters">         <list>               <ref bean ="jacksonmappingconverter" />         </list>    </property> </bean> 

how can post josn data? thanks.

edit:

before sending request converted json object:

$.ajax({ ... data: json.stringify(param) ... });

and have jackson library in pom.xml , no issue @responsebody.

i missed installdate field.

do have jackson jar inside classpath? can add @requestmapping(value="/mapping", consumes=mediatype.application_json_value) on method handler see sample- mappingcontroller