org.springframework.dao.InvalidDataAccessApiUsageException:The given object has a null identifi的解决方案
2015-02-23 17:41
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异常信息：
发生原因：抛这个异常是因为，当你在更新数据时，从JSP页面往Action传值没有传递ID值。
解决方案：把ID值放在隐藏域传递过去就OK了
org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier: com.blog.entity.PersonalizedSettings; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: com.blog.entity.PersonalizedSettings
发生原因：抛这个异常是因为，当你在更新数据时，从JSP页面往Action传值没有传递ID值。
解决方案：把ID值放在隐藏域传递过去就OK了
<input type="hidden" name="personalizedSettings.id" value="<s:property value='personalizedSettings.id'/>"/>
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