【摘要】EJB是用來開發(fā)和部署多層次結(jié)構(gòu)的、分布式的、面向?qū)ο蟮?a target='_blank' class='arckwlink_none'>java構(gòu)件體系結(jié)構(gòu)，針對(duì)EJB中對(duì)象存儲(chǔ)的難題，實(shí)現(xiàn)了一個(gè)基于EJB體系開發(fā)的開發(fā)模式PERO，該模式并沒有改變EJB系統(tǒng)框架。PERO容易操作，結(jié)構(gòu)簡(jiǎn)單，使EJB開發(fā)對(duì)開發(fā)者透明，從而降低了開發(fā)難度；同時(shí)提出了一種快速、簡(jiǎn)潔的解決基于EJB開發(fā)過程中O/R Mapping問題的方案。
關(guān) 鍵 詞 企業(yè)java bean; 對(duì)象/關(guān)系映射; 永久對(duì)象

The realize of a developing pattern's designing and developing,which is based of EJB, has resolve the storage problem of object ,and comparing with the same type of product ,it has serveral advantages,such as easy manipulate,simple structure and it makes the develop of using EJB more transparency to programmer, so it could make the developing easier.This paper also present a method to solve the problem of O/R Mapping .PERO is not an new frame of EJB,but an frame based_on EJB.