如何在SpringBoot上创建自定义findBy？

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface CustomRepository<T, ID> extends JpaRepository<T, ID> {
    // 添加自定义的查询方法
    List<T> findByCustomField(String customFieldValue);
}

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
public class YourEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String customField;

    // 省略其他属性和方法
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import java.util.List;

@Repository
public class CustomRepositoryImpl<T, ID> implements CustomRepository<T, ID> {

    private final EntityManager entityManager;

    @Autowired
    public CustomRepositoryImpl(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    @Override
    public List<T> findByCustomField(String customFieldValue) {
        TypedQuery<T> query = entityManager.createQuery("SELECT e FROM YourEntity e WHERE e.customField = :customFieldValue", YourEntity.class);
        query.setParameter("customFieldValue", customFieldValue);
        return query.getResultList();
    }
}

import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@Configuration
@EnableJpaRepositories(repositoryBaseClass = CustomRepositoryImpl.class)
public class JpaConfig {
    // 配置其他JPA相关的Bean
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class YourService {
    private final CustomRepository<YourEntity, Long> customRepository;

    @Autowired
    public YourService(CustomRepository<YourEntity, Long> customRepository) {
        this.customRepository = customRepository;
    }

    public List<YourEntity> findByCustomField(String customFieldValue) {
        return customRepository.findByCustomField(customFieldValue);
    }
}