As I'm new to springboot and mongodb I've used

Then created a model as below:

package com.example.model;

import java.io.Serializable;
import java.time.LocalDate;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.mongodb.core.mapping.Document;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

@Getter
@Setter
@ToString
@Configuration

@Document(collection = "customer")
@JsonIgnoreProperties(ignoreUnknown = true)
public class Customer implements Serializable {
    
    private static final long serialVersionUID = 6748432793461621268L;

    @JsonProperty("customer_id")
    private String customerId;
    
    @JsonProperty(value= "external_customer_reference_id")
    private String externalCustomerReferenceId;
    
    
    @JsonProperty("title")
    private String title;

    @JsonProperty("first_name")
    private String firstName;
    
    @JsonProperty("middle_name")
    private String middleName;

    @JsonProperty("last_name")
    private String lastName;
    
    @JsonProperty("email")
    private String email;

    @JsonProperty("phone")
    private String phone;

    @JsonProperty("note")
    private String note;
    
    @JsonProperty("date_of_birth")
    private String dateOfBirth;

    @JsonProperty("sex")
    private String sex;
    
    @JsonProperty("contact_address")
    private Address address;
    
    @CreatedDate
    @JsonProperty("create_timestamp")
    private LocalDate createdDate;
    
    @LastModifiedDate
    @JsonProperty("modified_timestamp")
    private LocalDate modifiedDate;
    
    
}

I'm able to save customer in mongodb collection customer. But the collection attribute names are not as same as @JsonProperty("modified_timestamp").

Why db collection attribute names are not as same as JsonProperty? How do I get db collection attribute names as same as JsonProperty?

CodePudding user response：

In MongoDB you're saving an object with his properties names. JsonProperty annotation mapping the deserialization and the serialization with given object.

Marker annotation that can be used to define a non-static method as a "setter" or "getter" for a logical property (depending on its signature), or non-static object field to be used (serialized, deserialized) as a logical property. Default value ("") indicates that the field name is used as the property name without any modifications, but it can be specified to non-empty value to specify different name. Property name refers to name used externally, as the field name in JSON objects.

https://fasterxml.github.io/jackson-annotations/javadoc/2.8/com/fasterxml/jackson/annotation/JsonProperty.html

By using @Field property annotation you can save property in different name as in object.