How does mybatis change a field name of an entity class to another name in the json data returned to the front end?

the overall use of the ssm framework.
this is the entity class:

I write that the json data returned to the front end is still of the type {name:.}. Is there any way to change the name displayed in json to another name, such as product_name? how should I change it?

Mybatis spring java

Mar.13,2021

Add @ JsonProperty ("return the field name of the front end")

to the

field.

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SSM operation error: UnsatisfiedDependencyException
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Mybatis spring java

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b36228-3439c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b36228-3439c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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