1.@mappedBy属性简单理解为设定为主表(OneToMany方)(这只是我个人理解，上面文章中也有提到过) 所以另一端(ManyToOne)则需要设置外键@JoinColumn(name="fk_id") 2.@OneToMany注解下返回Set集合。 3.@ManyToOne注解下...

publicstaticWavFileopenWavFile(Filefile)throwsIOException,WavFileException{FileChannelchannel=newFileInputStream(file).getChannel();MappedByteBuffermappedByteBu...