Dépendances nécessaires :

        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <scope>compile</scope>
        </dependency>

        <!-- Spring DATA -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <scope>compile</scope>
        </dependency>

        <!-- Hibernate -->
        <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-core</artifactId>
                <version>${hibernate.version}</version>
            </dependency>
            <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-entitymanager</artifactId>
                <version>${hibernate.version}</version>
            </dependency>

Définition de l'entité Hibernate :

import java.io.Serializable;
import javax.persistence.*;
import org.hibernate.annotations.GenericGenerator;

/**
 * Represents a truc in the database.
 */
@Entity
@Table(name = "TRUCS")
public class Truc implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(generator = "increment")
    @GenericGenerator(name = "increment", strategy = "increment")
    @Column(name = "id", nullable = false, unique = true)
    private Long id;

    @Column(name = "name")
    private String name;

    /**
     * Default constructor mandatory for hibernate instanciation.
     */
    public Truc() {
        super();

    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

Définition du CRUD Manager :

import java.util.List;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import org.springframework.data.repository.query.Param;

/**
 * The technical manager able to make CRUD actions on the truc in the database.
 */
public interface ContactManager extends CrudRepository<Truc, Long> {

    /**
     * Get all the trucs in the database with the given name.
     *
     * @param name the name.
     * @return the list of all trucs having the name.
     */
    @Query("select c from Truc c where lower(c.name) = lower(:name)")
    List<Truc> getByName(@Param("name") String name);
}

On utilise les managers via une injection autowired et un scan du package contenant les managers.