异常信息：

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'/>"/>

版权声明：本文为博主原创文章，未经博主允许不得转载。

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