title: How to use @JsonProperty to convert Snake Case?
body: <p>I have a Entity in Spring Boot REST app, I tried to convert property name from Camel Case to Snake Case and I used as below</p>
  
  <pre><code>@JsonProperty
  private String createdBy;
  </code></pre>
  
  <p>but I can't get what I need in JSON naming as created_by, why? do I have to use @JsonProperty("created_by")? is there any default way to do?</p>