工作札记--“ids for this class must be manually assigned before calling save”解决办法
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一般是没没有在XXX.java中对主键设置自增长造成的。
加入以下代码即可：
@GeneratedValue(strategy=GenerationType.AUTO)
如：
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "id", unique = true, nullable = false)
public Integer getId() {
return this.id;
}
- 工作札记--“ids for this class must be manually assigned before calling save”解决办法
- ids for this class must be manually assigned before calling save():***错误说明
- error:ids for this class must be manually assigned before calling save():
- error:ids for this class must be manually assigned before calling save()
- ids for this class must be manually assigned before calling save()
- error:ids for this class must be manually assigned before calling save():
- ids for this class must be manually assigned before calling save() hibernate
- org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save():
- IdentifierGenerationException: ids for this class must be manually assigned before calling save()
- ids for this class must be manually assigned before calling save()..
- HibernateSystemException--ids for this class must be manually assigned before calling save()
- error:ids for this class must be manually assigned before calling save():
- 关于 error:ids for this class must be manually assigned before calling save(): 的解决方案
- ids for this class must be manually assigned before calling save():
- ids for this class must be manually assigned before calling save()..
- ids for this class must be manually assigned before calling save()
- message ids for this class must be manually assigned before calling save(): ID 的问题
- ids for this class must be manually assigned before calling save():
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