No row with the given identifier exists

本文探讨了在使用Hibernate过程中遇到的“找不到具有给定标识符的行”异常问题,分析了可能的原因,包括错误的ID使用、损坏的外键关系及会话跨多个事务等,并提供了相应的解决方案。

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      在为已建的表添加一个字段,因为我要用一个自动脚本工具生成bean类,hibernate和ibatis的相关配置文件,所以按以往的做法把表删掉然后用重建表。
      最后JBPM的实例表,变量表与该文档绑定了ID导致如下面类似的错误:
Hibernate: No row with the given identifier exists

ObjectNotFoundException: No row with the given identifier exists

Where it can occur:

This might occur if you try to load a non-proxied object with session.load() or you load a proxied object and later access the proxy. It may also occur when loading mapped collections which are not eagerly fetched.

What it means:

This means just what it says - Hibernate expected to have a row with a certain id in the database, and did however not find it.

How it can be caused:

Wrong id for load

If you are using a nonexistant id for a load(), you will get this exception. Note that if you are using proxies, this may occur later on, when the proxy is first "broken".

Broken foreign key relationships

If you map for example a many-to-one relationship, and the table containing the objects on the "many" side contains a foreign key to a non-existant row of the "one" side table, you will get such an exception. This will only happen if the collection is not fetched eagerly.

Reusing a session across multiple transactions

The hibernate session internally memorizes some state. For example it internally stores ids which it assumes are already deleted from the database. So if you make the session believe somehow an object with a certain id has been deleted, and later try to load it again, you will get this exception without Hibernate even trying to access the database. So be careful with that.

How it can be fixed:

  • Check the ids you are using for load
  • Validate your foreign key relationships - the database should already maintain such integrity constraints.
  • Beware of multiple transactions within a single session. Try to stick to "one session, one transaction" rule. Especially do not reuse sessions after an HibernateException.

也就是是说关系数据库一致性遭到了破坏,找到相关表,就可以解决了。

"no data found for resource with given identifier"是一个常见的错误提示,意思是在系统中找不到与给定标识符对应的数据。这个错误通常出现在项目部署到生产环境后,在外网访问接口时发生。这可能是由于以下几个原因造成的: 1. 数据库连接问题:可能是由于数据库连接配置错误,导致系统无法访问或找到相应的数据。你可以检查数据库连接配置是否正确,并确保数据库服务正常运行。 2. 接口请求参数问题:错误的标识符或参数可能导致系统无法找到匹配的数据。你可以仔细检查请求参数是否正确,并与系统设计人员或开发人员确认标识符的正确性。 3. 数据库中没有对应的数据:给定的标识符可能在数据库中不存在,导致系统无法找到相应的数据。你可以在数据库中确认是否存在对应的数据,并确保数据已正确存储。 解决这个问题的方法包括: 1. 检查数据库连接配置,并确保数据库服务正常运行。 2. 仔细检查接口请求参数,并与系统设计人员或开发人员确认标识符的正确性。 3. 确认数据库中是否存在对应的数据,并确保数据已正确存储。 4. 如果问题仍然存在,可以通过查看系统日志或联系技术支持人员来获取更多的调试信息,以进一步分析和解决问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span> #### 引用[.reference_title] - *1* [Failed to load response data:No data found for resource with given identifier](https://blog.csdn.net/weixin_45500506/article/details/121232198)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"] - *2* *3* [记一次调用接口无返回的生产问题](https://blog.csdn.net/tmuffamd/article/details/128617853)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"] [ .reference_list ]
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