heqiao commented on issue #7703:
URL: https://github.com/apache/shardingsphere/issues/7703#issuecomment-714274455
> > There is indeed a workaround - Embed the primary key and sharding key on
the entity level. So the sharding key is disguised as part of JPA's id. Not
pretty, but works... However, it's definitely not something that I could
promote to coworkers "Hey we should use this cool sharding tool, and it works
with JPA only if you carefully configure it"
>
> It would be great if you could share an example!
```
@Embeddable
@Data
public class CompositeId implements Serializable {
private Long id; // pk
private String accountId; // sharding key
}
```
Then you can do findByCompositeIdAccountId.
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