[Java] Mutual conversion of notations such as camel case and snake case [Jackson]

Guava is famous for mutual conversion of naming conventions in Java such as camel case and snake case, but Jackson can also do it, so I will summarize it.

manner

You can do this by using the various Strategys defined in com.fasterxml.jackson.databind.PropertyNamingStrategy.

As an example, here is the conversion from camel case to snake case.

public static String camelToSnake(String value) {
    return new PropertyNamingStrategy.SnakeCaseStrategy().translate(value);
}

See the source code and documentation for other conversions.

Supplement

As another method, ModelMapper and Gson are likely to have equivalent functions.

-Java -Map and Bean conversion with snake case key | teratail

Articles that I used as a reference

-Jackson's Property Naming Strategy Summary -Qiita

• jackson-databind/PropertyNamingStrategy.java at master · FasterXML/jackson-databind