ids for this class must be manually assigned before calling save():Xxx - 码上欢乐

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ids for this class must be manually assigned before calling save():Xxx

本文转载自查看原文 2014-10-26 09:35 2163

把Xxx.hbm.xml主键生成策略改成identity

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猜您在找 错误信息：ids for this class must be manually assigned before calling save(): sample.db.Completedsample org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save() "> Private field 'XXX' is never assigned的解决办法 QWidget: Must construct a QApplication before a QWidget解决 Tensorflow错误：RuntimeError: The Session graph is empty. Add operations to the graph before calling run(). Tensorflow安装以及RuntimeError: The Session graph is empty. Add operations to the graph before calling run().解决方法 java.lang.IllegalStateException: Must have the StrutsPrepareFilter execute before this one Qt 解决：QWidget: Must construct a QApplication before a QWidget eslint 报错-Missing space before value for key ‘xxx’

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