使用spring data jpa 的删除操作,需要加注解@Modifying @Transactional 否则报错如下: No EntityManager with actual transaction available for current thread - cannot reliably process 'remove' call 场景如下: 在service中,先执行 delete 操作,再执行 save操作 报错如下: No EntityManager with actu
题目: Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1.
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jQuery 3.0 的 Data Snandy If you cannot hear the sound of the genuine in you, you will all of your life spend your days on the ends of strings that somebody else pulls. jQuery 3.0 的 Data 浅析 jQuery 3.0 在6月9日正式发布了,3.0 也被称为下一代的 jQuery .这个版本从14年10月开始,其中发布