解Hibernate +1
?span style="">?/span>??+1
?/span>夳?/span>Hibernate黤{etch="select"etch="join",g载??
?/span>?/span>
1对E(one-to-many) 11sql?对象??迸对象Q以nsql1sql? 1 +n??/span>
2E对<many-to-one>??sqln对象?n对象对1 对象?亥?sql? +n??/span>
3terator ??举Q?sql?ID没中D?? 产1+nSQL?/span>
?/span>解?/span>
1azy=true?hibernate3?已认lazy=truelazy=true询象覹象Kd孵Q?/span>
2 亨?1+N Q为使?询Q中以祾~中徿?1+N ?/span>
3 ) 以֮etch="join"塨失载??/span>