查询1(工作正常!): em.createQuery(
"SELECT r FROM Route r WHERE r.start.x = :x"
, Route.class).setParameter("x", start.getX())
QUERY2(ID真的很喜欢这个工作!): em.createQuery(
"SELECT r FROM Route
我有3个实体客户,数据和信息。实体之间的关系是oneToMany是这样的: public class Customer implements Serializable {
...
@OneToMany
private List<Data> datas;
...
public class Data implements Serializable {
...
@OneToMany(ma