在我的项目中，一些实体应该具有基于其值的签名属性。例如，在创建实体并填充其属性后，当调用entity.saveorupdate（）方法时，hibernate事件侦听器应该控制并从db收集uniqueid的下一个序列值。那么同一个事件应该基于实体属性和这个uniqueid生成一个签名（比如String）。签名之后，应该调用真正的saveorupdate事件。所以填充了符号属性的实体被写入数据库。
问题是，在saveorupdate事件中，我做了一些工作并调用了saveorupdate，所以会发生无休止的操作。
你对这类问题有什么解决办法吗？（而不是使用面向方面的编程）
一个快速而肮脏的解决方案是使用ThreadLocal来保存实体。如果threadlocal为空，则更新签名，设置threadlocal，然后保存实体。在下一次调用中，threadlocal将被填充，您可以从侦听器返回。
您可以做的另一件事是在实际saveOrUpdate之前应用侦听器，如果没有ID，则跳过。并在创建实体时手动调用逻辑（每个后续更新都将由侦听器处理）
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