Java条件API-从ID = ID的表中选择*

Question

I am new to the criteria api and am trying to build a select query where id matches id.

I would like to build this:

SELECT * FROM movie WHERE id = id(input var)

So far I have this with an input variable id as a long :

    CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Movie> critQuery = criteriaBuilder.createQuery(Movie.class);
    Root<Movie> rootMovie = critQuery.from(Movie.class);
    critQuery.select(rootMovie).where(rootMovie.get("movieId"), id);

This will create errors and doesn't work. Any ideas how to make it work?

error: The method where(Expression) in the type CriteriaQuery is not applicable for the arguments (Path, Long)

Answer 1

您的where条件应如下所示：

.where(criteriaBuilder.equal(rootMovie.get("movieId"), id));