Considering callbacks: Most of Spring's glue code to other frameworks like Jpa, Jms etc. is based on the template pattern, such as JpaTemplate, JmsTemplate etc.
关于回调：Spring用于粘合jpa、Jms等框架的大多数胶水代码都是基于模板模式，比如JpaTemplate、JmsTemplate等。
Print out the ghost pattern, which you can download here. Cut the ghost from the glitter sheet and glue on the eyes.
打印出幽灵模式，再用黑色闪光纸剪出三个小圆 点作为幽默的眼睛和嘴巴；
Print out the ghost pattern, which you can download here. Cut the ghost from the glitter sheet and glue on the eyes.
打印出幽灵模式，再用黑色闪光纸剪出三个小圆 点作为幽默的眼睛和嘴巴；
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