Hi Istvan, Your XSP is not valid. Any xsp:logic tag which comes before first document tag goes to the XSP class definition, not to the XSP method body. So your tag defines string member of the class "fruit" with initializer. Initializer you specified requires request object. At the time of instance creation this request object is obviously missing. Hence, you got NullPointerException.
The correct XSP (assuming you are using Cocoon 2) is: ---------------------8<------------------- <?xml version="1.0"?> <xsp:page xmlns:xsp="http://apache.org/xsp"; xmlns:xsp-request="http://apache.org/xsp/request/2.0";> <html> <xsp:logic> String fruit = <xsp-request:get-parameter name="fruit"/>; </xsp:logic> <b>The string is: </b> <xsp:expr>fruit</xsp:expr> <br/> <b>The request parameter is: </b> <xsp-request:get-parameter name="fruit"/> </html> </xsp:page> ---------------------8<------------------- Regards, Vadim > -----Original Message----- > From: Michael Homeijer [mailto:[EMAIL PROTECTED]] > Sent: Monday, March 04, 2002 9:34 AM > To: '[EMAIL PROTECTED]' > Subject: RE: xsp-request problem > > Hi, > > Have a look at the generated java code in the work directory of your servlet > engine. > I am sure it will give you a clue about how XSP works in Cocoon. ;-) > > Michael > > > -----Original Message----- > > From: Istvan Beszteri [mailto:[EMAIL PROTECTED]] > > Sent: maandag 4 maart 2002 16:35 > > To: [EMAIL PROTECTED] > > Subject: xsp-request problem > > > > > > Hi All, > > > > I just started to learn XSP and I tried some examples. > > I have found a strange problem with xsp-request. > > > > The following xsp works properly: > > > > <?xml version="1.0"?> > > <?cocoon-process type="xsp"?> > > <xsp:page > > xmlns:xsp="http://apache.org/xsp"; > > xmlns:xsp-request="http://apache.org/xsp/request/2.0"; > > > > > <xsp:logic> > > String fruit = "apple"; > > </xsp:logic> > > > > <html> > > <b>The string is: </b><xsp:expr>fruit</xsp:expr> > > <br/> > > <b>The request parameter is: </b> > > <xsp-request:get-parameter > > name="fruit"/> > > </html> > > </xsp:page> > > > > with a certain request, but if I try to give value to the > > fruit string as in > > the following example, I get a null pointer exception: > > > > <?xml version="1.0"?> > > <?cocoon-process type="xsp"?> > > <xsp:page > > xmlns:xsp="http://apache.org/xsp"; > > xmlns:xsp-request="http://apache.org/xsp/request/2.0"; > > > > > <xsp:logic> > > String fruit = <xsp-request:get-parameter name="fruit"/>; > > </xsp:logic> > > > > <html> > > <b>The string is: </b><xsp:expr>fruit</xsp:expr> > > <br/> > > <b>The request parameter is: </b> <xsp-request:get-parameter > > name="fruit"/> > > </html> > > </xsp:page> > > > > It seems <xsp-request:get-parameter name="fruit"/> gives back > > a null pointer > > if I use it within the <xsp:logic> tags. > > > > Any idea? > > > > Thanks in advance! > > > > Istvan > > --------------------------------------------------------------------- Please check that your question has not already been answered in the FAQ before posting. <http://xml.apache.org/cocoon/faqs.html> To unsubscribe, e-mail: <[EMAIL PROTECTED]> For additional commands, e-mail: <[EMAIL PROTECTED]>
