thank for your help,i know what u said,but i am still confuse with the stack,i will check the article myself :D
--- José Antonio Pérez Testa <[EMAIL PROTECTED]> 的正文： > Copied from : > http://www.theserverside.com/articles/article.tss?l=Digester > ..... > The reason you need to push this initial object is > because Digester > keeps pushing and popping objects from the stack as > it encounters tags. > So the first object is created and pushed onto the > stack upon > encountering the first tag, and this object is > popped off the stack when > the last tag is processed. Because you need to hold > a reference to the > object for the first tag, the initial object you > push before you parse > the XML serves the purpose and retains a reference > to that object. > .... > > José Antonio Pérez Testa wrote: > > >Hi Gao, > >You have to add an initial object to the Digester > stack with > >digester.push (miObject); > >and add a new rule > >digester.addSetNext("CMS/CMD/GWPARAMS", > "miObjectMethodName"); > >in order to Digester to call <miObjectMethodName> > with the Device in top > >of the stack, before pop the Device object and > leave the stack empty ( > >and the return null). > > > >Gao Di wrote: > > > > > > > >>my xml is: > >><CMS> > >><CMD> > >><GWPARAMS name='shanghai'> > >><PR name='OSVER' value='V001'/> > >><PR name='HWVER' value='V002'/> > >><PR name='STATUS' value='ON'/> > >><PR name='CONNECTTIME' value='2004-08-30 16:50'/> > >><PR name='UPTIME' value='2004-08-30 16:50'/> > >></GWPARAMS> > >></CMD> > >></CMS> > >>and i want to put the the value into the > javabean,i > >>use; > >>digester.addObjectCreate("CMS/CMD/GWPARAMS", > >>"com.adt.service.transfer.model.Device"); > >>digester.addSetProperties("CMS/CMD/GWPARAMS"); > >>digester.addSetProperty("CMS/CMD/GWPARAMS/PR","name","value"); > >> > >>device = (Device)digester.parse(os.getReader()); > >> > >>i find the parse can find the set method and put > the > >>value in it,but when i use get method to get the > >>result,i only get null,it seems the value can't be > >>persisted,that's why? > >> > >>_________________________________________________________ > >>Do You Yahoo!? > >>150万曲MP3疯狂搜，带您闯入音乐殿堂 > >>http://music.yisou.com/ > >>美女明星应有尽有，搜遍美图、艳图和酷图 > >>http://image.yisou.com > >>1G就是1000兆，雅虎电邮自助扩容！ > >>http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ > >> > >>--------------------------------------------------------------------- > >>To unsubscribe, e-mail: > [EMAIL PROTECTED] > >>For additional commands, e-mail: > [EMAIL PROTECTED] > >> > >> > >> > >> > >> > >------------------------------------------------------------------------------------------------------------------- > >Este correo electr?ico y, en su caso, cualquier > fichero anexo al mismo, contiene informaci? de > car?ter confidencial exclusivamente dirigida a su > destinatario o destinatarios. 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