hibernate and java data objects, which both form the foundation of the new ejb persistence and a common persistence standard, led to a rise in object-relational mapping within the java community, and now the overall java experience is a much more pleasant one hibernate和java数据对象(jdo)二者构成了新的ejb持久性的基础,成为公共的持久性标准,它们引起了java社区中对象关系映射(orm)的兴起,现在整体的java体验要好得多了。