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?
>>
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