Spring MVC JSON problem

Applicationcontext.xml

1 <Beanclass= "Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">  2         < Propertyname= "Messageconverters">  3             <List>  4                <Beanclass= "Org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">  5                    < Propertyname= "Supportedmediatypes">  6                        <List>  7                            <value>Text/plain;charset=utf-8</value>  8                            <value>Application/json;charset=utf-8</value>  9                        </List>  Ten                    </ Property>   One                    < Propertyname= "Objectmapper">   A                        <Beanclass= "Com.charmyin.cmstudio.common.utils.ObjectMappingCustomer"></Bean>   -                    </ Property>   -                </Bean>      the             </List>   -         </ Property>   -     </Bean>

I tried it here, too.

<Bean class= "Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter "> ... </bean>

Objectmappingcustomer.java

1  Packagecom.charmyin.cmstudio.common.utils;2 3 4 Importjava.io.IOException;5 6 ImportCom.fasterxml.jackson.databind.JsonSerializer;7 ImportCom.fasterxml.jackson.databind.ObjectMapper;8 ImportCom.fasterxml.jackson.core.JsonGenerator;9 ImportCom.fasterxml.jackson.core.JsonParser; Ten Importcom.fasterxml.jackson.core.JsonProcessingException; One ImportCom.fasterxml.jackson.databind.SerializerProvider; A   -      Public classObjectmappingcustomerextendsObjectmapper -  the     { -  -         /** -          *  +          */ -         Private Static Final LongSerialversionuid = 1L;  +  A         at  -          PublicObjectmappingcustomer () -  -         {   - // -             Super();  in  -             //allow single quotation marks to  +              This. Configure (JsonParser.Feature.ALLOW_SINGLE_QUOTES,true);  -  the             //fields and values are quoted *  $              This. Configure (JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES,true); Panax Notoginseng  -             //numbers are also quoted the  +              This. Configure (JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS,true);  A  the              This. Configure (JsonGenerator.Feature.QUOTE_NON_NUMERIC_NUMBERS,true);  + // - //            //null processing is an empty string $ // $Serializerprovider sp = (serializerprovider) This. Getserializerprovider (); -  -Sp.setnullvalueserializer (NewJsonserializer<object>(){ the  -  Wuyi  the @Override -  Wu                  Public voidSerialize (Object value, Jsongenerator JG, -  AboutSerializerprovider sp)throwsIOException, $  - jsonprocessingexception { -  -Jg.writestring ("");  A  +                 } the  -                   $  the             }); the // the //        the // -         }   in  the}

JSON for output

{    "rows": [        {            null,            "praId": " BFFA397B245849909A9C2AF4E74E007D19A1E6CB ",            " Creatorid ": 248,            " creatorname ":" Stu123 ",            null      }    ]}

Spring MVC JSON problem