一个关于多线程的事例,学习多线程最好用上12分的心,很多的意外错误让你想冬眠.也许你还发誓一辈子都只写单线程的.~^~-one of the examples of multi-threaded, multi-thread study the best use of 12 hours of heart, Many accidents wrong to let you hibernate. Perhaps you also vowed only to write a lifetime of the

双向映射关系 hibernate 的双向映射、一对多、多对多、一对一、注解-Bidirectional mapping relationship hibernate bidirectional mapping, one-to-many, many-to-many

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