SPRING MVC JSON null idling "" empty string

The workaround is not the same as on the Web because Serializerprovider is the parent class for Stdserializerprovider, the direct from the Serializerprovider. Setnullvalueserializer () method does not allow So call this method from subclass Stdserializerprovider

Applicationcontext.xml

<bean
class= "Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >
<property name= "Messageconverters" >
<list>
<bean class= "Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" >
<property name= "Supportedmediatypes" >
<list>
<value>text/plain;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
</list>
</property>
<property name= "Objectmapper" >
<bean class= "Com.interceptor.ObjectMappingCustomer" ></bean>
</property>
</bean>
</list>
</property>
</bean>

Objectmappingcustomer.java

    package com.interceptor;             import java.io.IOException;import org.codehaus.jackson.JsonGenerator;import  org.codehaus.jackson.jsonparser;import org.codehaus.jackson.jsonprocessingexception;import  org.codehaus.jackson.map.jsonserializer;import org.codehaus.jackson.map.objectmapper;import  org.codehaus.jackson.map.serializerprovider;import org.codehaus.jackson.map.ser.stdserializerprovider;           public class ObjectMappingCustomer  extends objectmapper      {                 public objectmappingcustomer ()            {               super ();              //  Allow single quotes                this.configure (JsonParser.Feature.ALLOW_SINGLE_QUOTES,  true);              //  Fields and values are quoted               this.configure ( Jsonparser.feature.allow_unquoted_field_names, true);               //  numbers are also quoted                this.configure (jsongenerator.feature.write_numbers_as_strings, true);               this.configure ( Jsongenerator.feature.quote_non_numeric_numbers, true);              //  null processing is empty string               stdserializerprovider sp  =  (Stdserializerprovider)  this.getserializerprovider ();             sp.setnullvalueserializer (new jsonserializer<object> () {                  @Override                  public void  serialize (object value, jsongenerator jg,                          SERIALIZERPROVIDER&NBSP;SP)  throws IOException,                          jsonprocessingexception {                     jg.writestring ("");                   }                             });               }      }

And then add @ResponseBody Note to SPRINGMVC Controller.

Need Jackson-all.jar

SPRING MVC JSON null idling "" empty string