On Thu, 13 Dec 2001, Purcell, Scott wrote:
> Date: Thu, 13 Dec 2001 14:19:09 -0600
> From: "Purcell, Scott" <[EMAIL PROTECTED]>
> Reply-To: Tomcat Users List <[EMAIL PROTECTED]>
> To: 'Tomcat Users List' <[EMAIL PROTECTED]>
> Subject: RE: web.xml file confusion
>
> Thanks Craig,
> I think my issue is registering the servlet. I cannot seem to find how to do
> that. How do I register a servlet with the server?
>
In web.xml, using a <servlet> entry. Please see the docs I referenced for
more info.
> thanks
> Scott
>
Craig
>
>
> -----Original Message-----
> From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 13, 2001 1:51 PM
> To: Tomcat Users List
> Subject: Re: web.xml file confusion
>
>
>
>
> On Thu, 13 Dec 2001, Purcell, Scott wrote:
>
> > Date: Thu, 13 Dec 2001 13:34:18 -0600
> > From: "Purcell, Scott" <[EMAIL PROTECTED]>
> > Reply-To: Tomcat Users List <[EMAIL PROTECTED]>
> > To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
> > Subject: web.xml file confusion
> >
> > Hello,
> > I am working out of Martys book on Servlets, and there is an example of
> > using the init block to get some parameters from the web.xml file.
> > When I searched for web.xml to find it, I found one in about each
> directory.
> > I do not think that is right. Where should the web.xml file live?
> >
> > Also, Is there a way to find out (print out possibly) the parameters so I
> > can see what is being read? I am asking this, because I have added the
> > following snippet to my web.xml file, but the code below does NOT read
> those
> > params. I am confused by this, and could use some assistance.
> >
>
> There should be a web.xml file for each web application (in a WEB-INF
> subdirectory), because each application is independent of the others.
>
> The basic rules for what web.xml is all about are spelled out in the
> Servlet Specificaiton, which you can download at:
>
> http://java.sun.com/products/servlet/download.html
>
> (although I suspect that reading the book's discussion about web.xml would
> also probably help you understand it better :-).
>
>
> > Thanks
> > Scott
> >
>
>
> > // here is part of my web.xml file The file I am running and compiles
> > properly is in a package called cwp.ShowMessage. I thought all looks good,
> > but maybe a second set of eyes may help.
> >
> >
> > <web-app>
> >
> > <servlet>
> > <servlet-name>ShowMessage</servlet-name>
> > <servlet-class>cwp.ShowMessage</servlet-class>
> > <init-param>
> > <param-name>message</param-name>
> > <param-value>Alert FM</param-value>
> > </init-param>
> > <init-param>
> > <param-name>repeats</param-name>
> > <param-value>20</param-value>
> > </init-param>
> > </servlet>
> >
> >
> > <servlet>
> > <servlet-name>ShowMessage</servlet-name>
> > <servlet-class>coreservlets.ShowMessage</servlet-class>
> > <init-param>
> > <param-name>message</param-name>
> > <param-value>Alert FM</param-value>
> > </init-param>
> > <init-param>
> > <param-name>repeats</param-name>
> > <param-value>20</param-value>
> > </init-param>
> > </servlet>
> >
> >
> >
> > // part of my class to go get the web.xml parameters message and repeats.
> > public class ShowMessage extends HttpServlet {
> >
> > private String message;
> > private String defaultMessage= "No Messages Today";
> > private int repeats = 1;
> >
> > public void init() throws ServletException {
> > ServletConfig config = getServletConfig();
> > message = config.getInitParameter("message");
> > if (message == null) {
> > message= defaultMessage;
> > }
> >
> > try {
> > String repeatString = config.getInitParameter("repeats");
> > repeats = Integer.parseInt(repeatString);
> > } catch (NumberFormatException nfe) {
> > }
> > }
> >
> >
>
> The missing link is that you need to use a <servlet-mapping> to connect a
> particular request URL to the <servlet> definition, then use that URL to
> request the servlet's output.
>
> > Scott Purcell
> >
>
> Craig McClanahan
>
>
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