Hibernate 产生损坏的查询

Question

我有一个通过 Hibernate 映射到数据库 table 的实体：

@Entity
@NoArgsConstructor
@Getter 
@Setter
@FieldNameConstants
public class Set extends AbstractEntity {
    
    @ManyToOne(fetch = FetchType.EAGER, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
    @JoinColumn(name = "owner_id")
    private User owner;
    
    private LocalDate date;
    
    private String password;
    
    @Enumerated(EnumType.STRING)
    private SetStatus status;
    
    @ManyToMany(fetch = FetchType.EAGER, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
    @Fetch(value = FetchMode.SUBSELECT)
    @JoinTable(name = "set_user", joinColumns = @JoinColumn(name = "set_id"), inverseJoinColumns = @JoinColumn(name = "user_id"))
    private List<User> users;
    
    @ManyToMany(fetch = FetchType.EAGER, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
    @Fetch(value = FetchMode.SUBSELECT)
    @JoinTable(name = "cocktail_set", joinColumns = @JoinColumn(name = "set_id"), inverseJoinColumns = @JoinColumn(name = "cocktail_id"))
    private List<Cocktail> cocktails;
}

并在此 Spring 服务中完成映射：

@Service
public class SetService {
    
    @Autowired
    private SetRepository setRepository;
    
    public Page<Set> findAll(HttpSession session, SetSearch search, Pageable pageable) {
        
        Specification<Set> specification = SetSpecifications.empty();
        
        UUID id = (UUID)session.getAttribute("userId");
        UserRole role = (UserRole)session.getAttribute("userRole");
        if (role == UserRole.BARMEN)
            specification = specification.and(SetSpecifications.setsForBarmen(id));
        else if (role == UserRole.USER)
            specification = specification.and(SetSpecifications.setsForUser(id));
        if (search.getDate() != null)
            specification = specification.and(SetSpecifications.dateEquals(search));
        if (search.getStatus() != null)
            specification = specification.and(SetSpecifications.statusEquals(search));
        
        Sort sortByDate = Sort.by(Sort.Direction.DESC, "date");
        return setRepository.findAll(specification, ((PageRequest)pageable).withSort(sortByDate));
    }

}

但是，当我向该服务发送请求时，Hibernate 会生成一个查询，该查询会导致 SQLSyntaxErrorException 和一个很长的堆栈跟踪。

查询是：

select
        set0_.id as id1_5_,
        set0_.date as date2_5_,
        set0_.owner_id as owner_id5_5_,
        set0_.password as password3_5_,
        set0_.status as status4_5_ 
    from
        
    set
        set0_ 
    where
        1=1 
    order by
        set0_.date desc limit ?

异常消息以：

开头

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'set set0_ where 1=1 order by set0_.date desc limit 10' at line 1

除了 from 之后的这个愚蠢的换行符外，查询看起来完全没问题，从异常消息来看，这似乎是原因。在我看来，Hibernate 这次真的拉屎了。

我想得到一个答案，严格到第i点。 e.提供了一个可行的解决方案。如果你没有，就跳过这个，不要浪费你的时间写，我的时间看。

Answer 1

Table 名称设置导致您出现问题。 set 是 MySQL 的保留关键字。看看 MySQL documentation

Hibernate 产生损坏的查询

Hibernate produces broken query

java

spring

hibernate