Liwen Chen wrote:
> Another question: in Jason Hunter's book, jsp stuff looks different from the
> JSP tutorial
> from java.sun.com. Hunter uses <bean></bean>, and the tutorial uses
> <jsp:useBean>
> instead. Any difference?
>
The <bean></bean> syntax is from a much older version of the JSP specification.
You will want to look for tutorials based on the JSP 1.0 or 1.1 specifications.
>
> About the <servlet> tag, the reason I want to use it is: i want to refresh
> my page every
> 5 minutes automatically. when I add some other jsp stuff like <%@....%> in
> my page,
> it cannot be refreshed automatically.
Why not? As long as you generate the appropriate meta refresh tag, the browser
will do the right thing?
> And the Preston suggested me to use
> <servlet>
> tag instead. Do you have some other way to achieve that?
>
Make your page a JSP (i.e. the filename should be something like "mypage.jsp"
instead of "mypage.html").
Include the meta refresh tag in the <head> section of the generated page, as you
would for static HTML.
Use <jsp:include> to include the output of one servlet (or JSP page) in a
different page.
Be sure you are running on a servlet container that supports the JSP 1.0 or 1.1
standards. Tomcat is one such container.
>
> Thanks
>
> Liwen
>
Craig
>
> ----- Original Message -----
> From: "Craig R. McClanahan" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, June 13, 2000 9:32 AM
> Subject: Re: Servlet Tag with Tomcat 3.1
>
> > Liwen Chen wrote:
> >
> > > I embed a servlet tag in a file with extension .shtml and it works fine
> for
> > > JRun 2.3.3 and IIS 4.0 combination. When I try to load it for Tomcat
> 3.1,
> > > it doesn't work. The servlet tag is not recognized by Tomcat. I then
> > > downloaded
> > > ApacheJSSI and put the jar file under <Tomcat_root>/lib and add it to my
> > > classpath.
> >
> > On Windows systems, Tomcat does *not* currently add all the JAR files in
> > %TOMCAT_HOME%\lib to the class path. You need to add it yourself.
> > Alternatively, you could put the JSSI JAR file in the WEB-INF/lib
> directory for
> > your web application.
> >
> > Also, you should know that others have reported problems using JSSI under
> > Tomcat because JSSI is based on the servlet 2.0 API, and several important
> > things have changed since then. You might consider using <jsp:include> to
> > accomplish pretty much the same result.
> >
> > > I also modified the web.xml file to add in a servlet-mapping
> > > which
> > > mapping .shtml to org.apache.servlet.ssi.ServletTagHandler. But when I
> try
> > > to load it, tomcat told me that the class
> > > org.apache.servlet.ssi.ServletTagHandler
> > > cannot be found.
> > >
> > > Help, please!
> > >
> > > Liwen
> > >
> >
> > Craig McClanahan
> >
> >
> > >
> > > ----- Original Message -----
> > > From: "Preston L. Bannister" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Monday, June 12, 2000 2:05 PM
> > > Subject: Re: Refreshing jsp page...
> > >
> > > > From: Liwen Chen
> > > > > is it good for me to keep the information in a database
> > > > > and use a servlet to retrieve real-time information and
> > > > > store them in it. then for the jsp file, it just retrieves
> > > > > data from database?
> > > >
> > > > Unless you have some reason to want to persist the data,
> > > > I cannot see any reason to write it into a database.
> > > >
> > > > I'm guessing that you want to cache the data in a class
> > > > instance stored in the session. The question is when to
> > > > update this information. The answer depends on the time
> > > > required to perform update from the remote(?) source.
> > > >
> > > >
> > >
> ___________________________________________________________________________
> > > > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
> > > body
> > > > of the message "signoff SERVLET-INTEREST".
> > > >
> > > > Archives: http://archives.java.sun.com/archives/servlet-interest.html
> > > > Resources:
> http://java.sun.com/products/servlet/external-resources.html
> > > > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
> > > >
> > >
> > >
> ___________________________________________________________________________
> > > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
> body
> > > of the message "signoff SERVLET-INTEREST".
> > >
> > > Archives: http://archives.java.sun.com/archives/servlet-interest.html
> > > Resources: http://java.sun.com/products/servlet/external-resources.html
> > > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
> >
> >
> ___________________________________________________________________________
> > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
> body
> > of the message "signoff SERVLET-INTEREST".
> >
> > Archives: http://archives.java.sun.com/archives/servlet-interest.html
> > Resources: http://java.sun.com/products/servlet/external-resources.html
> > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
> >
>
> ___________________________________________________________________________
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff SERVLET-INTEREST".
>
> Archives: http://archives.java.sun.com/archives/servlet-interest.html
> Resources: http://java.sun.com/products/servlet/external-resources.html
> LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
