How the JSON returned by Spring MVC goes to the root node name

Configuration view in spring XML if it is the following

< Propertyname= "Defaultviews">            <List>                <Beanclass= "Org.springframework.web.servlet.view.json.MappingJackson2JsonView">                </Bean>            </List>        </ Property>

Then the return result will be:

{"Commonajaxresponse": {"code": 1, "ErrorCode":null, "errormessage":null, "data": {"key": "123"}}}

One of the commonajaxresponse is not what we want.

Note The API description of the Mappingjackson2jsonview property Extractvaluefromsinglekeymodel, which can be set to true to resolve.

< Propertyname= "Defaultviews">            <List>                <Beanclass= "Org.springframework.web.servlet.view.json.MappingJackson2JsonView">                    < Propertyname= "Extractvaluefromsinglekeymodel"value= "true" />                </Bean>            </List>        </ Property>

Get:

{"Code": 1, "ErrorCode":null, "errormessage":null, "data": {"key": "123"}}

How the JSON returned by Spring MVC goes to the root node name