表A
@ManyToOne
private B b;
表B
@Column(length = 10, nullable = false, unique = true)
private String name;
@OneToMany(cascade = CascadeType.REFRESH, mappedBy = "b")
private Set alist;
Service(已加入@Service和@Transactional)
A a = new A();
a.setB(new B(1));
service.save(a);
这时报错：
not-null property references a null or transient value : com.entity.B.name
可是我在JUnit里面用同样的确可以 ，这是怎么回事啊
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