java - Spring + Jackson Content type 'application/json;charset=UTF-8' not supported -

when posting jquery ajax, following error.

org.springframework.web.httpmediatypenotsupportedexception: content type 'application/json;charset=utf-8' not supported     @ org.springframework.web.servlet.mvc.method.annotation.abstractmessageconvertermethodargumentresolver.readwithmessageconverters(abstractmessageconvertermethodargumentresolver.java:226)     @ org.springframework.web.servlet.mvc.method.annotation.requestresponsebodymethodprocessor.readwithmessageconverters(requestresponsebodymethodprocessor.java:148)     @ org.springframework.web.servlet.mvc.method.annotation.requestresponsebodymethodprocessor.resolveargument(requestresponsebodymethodprocessor.java:125) 

the interesting thing when debug

requestresponsebodymethodprocessor.java:148 

and webrequest.getheader("content-type") value application/json. pretty normal.

but when comes last method of chain abstractmessageconvertermethodargumentresolver.java:226 content-type becomes application/json; charset=utf-8;

which throws exception. here code ;

controller

@requestmapping(value="/user/set-preference",method=requestmethod.post) @responsebody private boolean set_preference(@requestbody userpreference preference) {      try{                     userservice.save(preference);          return true;     }catch(exception ex){         return false;     } } 

entity

@entity public class userpreference extends baseentity{  @manytoone(fetch=fetchtype.lazy) private user user;  private string name; private string information;  public user getuser() {     return user; } public void setuser(user user) {     this.user = user; } public string getname() {     return name; } public void setname(string name) {     this.name = name; } public string getinformation() {     return information; } public void setinformation(string information) {     this.information = information; }   } 

spring mvc config

<mvc:annotation-driven>         <mvc:message-converters>         <bean             class="org.springframework.http.converter.json.mappingjackson2httpmessageconverter">             <property name="objectmapper">                 <bean                     class="com.test.hibernateawareobjectmapper" />             </property>         </bean>     </mvc:message-converters> </mvc:annotation-driven> 

i had same problem , solved adding default constructor class. try it.