更改 pojo class 的 MongoDatabase 上的字段？

Question

I have a CSV file that I am reading into MongoDB using a POJO class like:

public class Student {
    @JsonProperty("NAME")
    private String name;

    @JsonProperty("ID")
    private Integer id;

    //getters and setters
}

I want the fields in Mongo DB to be appeared like:

{
  "NAME": "John",
  "ID": 4212
}

Instead they are like:

{
  "name": "John",
  "id": 4212
}

All of them are lower case, instead of upper case.

Answer 1

If you are using Spring Data MongoDB, you can use @Field to change the field name as follows:

public class Student {
    @JsonProperty("NAME")
    @Field("NAME")
    private String name;

    @JsonProperty("ID")
    @Field("ID")
    private Integer id;

    //getters and setters
}