JPA更改新增操作報錯identifier an instance of .... was altered from 58 to nuLL；
原因如下： 解決的辦法是因爲我前面的代碼位置錯誤而導致更改一下邊可，因爲我用到的BeanUtils.copyProperties(sources,target) 一開始我是反過來導致的問題，後面過仔細勘察，才發現反了，一開始BeanUtils.copyProperties(put1,put)這樣存在問題 正確的是BeanUtils.copyProperties(put,put1) ，下圖是正確
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相關文章
- 1. identifier of an instance of com.xjgx.domain.education.PropagandaDatail was altered from 8a82a6ef74b
- 2. identifier of an instance of xx.entity was altered from xxKey@249e3cb2 to xxKey@74e8f4a3; nested exc
- 3. 【hibernate】錯誤：org.hibernate.HibernateException: identifier of an instance of com.agen.entity.Monthde...
- 4. org.hibernate.HibernateException: identifier of an instance of 實體類的完整類路徑 was altered from X to X.
- 5. sqlplus conneted to an idle instance
- 6. 關於「NullReferenceException: Object reference not set to an instance of an object」的思考
- 7. 【IllegalArgumentException】: object is not an instance of declaring class
- 8. org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from Str
- 9. Null value was assigned to a property of primitive
- 10. NullReferenceException: Object reference not set to an instance of an object（GameManager.instance爲空）