JPA: How to get entity based on field value other than ID?

Question

In JPA (Hibernate), when we automatically generate the ID field, it is assumed that the user has no knowledge about this key. So, when obtaining the entity, user would query

Answer 1

Refer - Spring docs for query methods

We can add methods in Spring Jpa by passing diff params in methods like:
List findByEmailAddressAndLastname(EmailAddress emailAddress, String lastname);

// Enabling static ORDER BY for a query 

List findByLastnameOrderByFirstnameAsc(String lastname);