[opencms-dev] How to access own Java Class via JSP in OpenCMS 5 RC2

[Marcus Redeker]

You can get access to the CmsObject from your JSP request object. Look
into the nav-demo.jsp Once you have the CmsObject you can give it into
your bean class using a normal setter. It should also be possible to
store the CmsObject within the Web-Session or even the Context. But I am
not sure about that. Maybe Alexander knows about that.

Cheers,
--Marcus



> -----Original Message-----
> From: opencms-dev-owner at www.opencms.org 
> [mailto:opencms-dev-owner at www.opencms.org] On Behalf Of 
> ambiesense at gmx.de
> Sent: Thursday, April 03, 2003 8:08 PM
> To: opencms-dev at www.opencms.org
> Subject: RE: [opencms-dev] How to access own Java Class via 
> JSP in OpenCMS 5 RC2
> 
> 
> Hello,
> 
> thanks for your quick answer :) This sounds good. I have had 
> a look to the usebean Tag. However this bean need to get 
> access to the OpenCMS instance. This seems to be a problem. I 
> have used that code before triggered by a content template. 
> Every time a website, made from this OpenCMS content 
> template, was accessed. My class overwrites that method:
> 
> public byte[] getContent(CmsObject cms, String templateFile, 
> String elementName, 
>                              Hashtable parameters, String 
> templateSelector) throws CmsException {
> 
> so I got access to CmsObject. With this CmsObject I could 
> access i.e. Files in the VFS or users in OpenCMS. 
> 
> How can I do this with the JSP approach?
> 
> Any help would be highly appreciated!
> 
> Cheers,
> Ralf
> 
> > Hi,
> > 
> > this is no problem. You just have to make sure that the 
> OpenCMS webapp 
> > is seeing your class. Either put it into the  opencms.jar or under 
> > WEB-INF/classes. If you just want to use the class as a 
> bean you can 
> > use the "useBean" - Tag. For that you don't need to write your own 
> > tags.
> > 
> > --Marcus
> > 
> > > -----Original Message-----
> > > From: opencms-dev-owner at www.opencms.org
> > > [mailto:opencms-dev-owner at www.opencms.org] On Behalf Of 
> > > ambiesense at gmx.de
> > > Sent: Thursday, April 03, 2003 6:23 PM
> > > To: opencms-dev at www.opencms.org
> > > Subject: [opencms-dev] How to access own Java Class via JSP 
> > > in OpenCMS 5 RC2
> > > 
> > > 
> > > Hi,
> > > 
> > > I followed the advice of Tim Howland and want to use JSP and
> > > JSTL for dynamic page generation. I am planning to develop an 
> > > Hello World example:
> > > 
> > > I want to have a JSP page with a very basic form (textfield
> > > and submit button).  The user enters his name  in the 
> > > textfield (i.e. Bob) and press the submit button. The word 
> > > get somehow transported to another JSP page which calles a 
> > > method in my own Java class with the word as parameter. The 
> > > Java class simply returns the input (Echo method). This 
> > > result should be displayed in this JSP so it finally produces 
> > > the output: "Hello World Bob".
> > > 
> > > Is this generally possible? Will I need to develop my own TLD
> > > file declaring the tags I want to be able to use? Does 
> > > somebody has already developed some JSP which access a own 
> > > (non-OpenCMS) Java class (i.e. a Java Bean) ?
> > > 
> > > Thanks in advance,
> > > Ralf
> > > 
> > > --
> > > +++ GMX - Mail, Messaging & more  http://www.gmx.net +++
> > > Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!
> > > 
> > > 
> > 
> > 
> 
> -- 
> +++ GMX - Mail, Messaging & more  http://www.gmx.net +++
> Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!
> 
>