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Posted to user@velocity.apache.org by Mike D'Ambrogia <mi...@jamagination.com> on 2005/08/02 00:40:45 UTC
Newb: SampleServlet Example not working
All,
New/inexperienced in Tomcat 5.0.28 but getting there slowly, currently
reading the tomcat tutorial. I've searched the V-U archives on
marc.theaimsgroup.com without luck. Trying to get the simpleservlet
example up and running without luck. I've gone overboard with info here
in the hopes that the configuration mistake I'm making will be readily
apparent to someone.
TC located in C:\apache\tomcat\ on Win2kpro system,
JAVA_HOME=j2sdk1.4.2_04 but also have jdk1.5.0_04 on the system too
Per the instructions in
velocity-1.4\examples\servlet_example1\readme.txt I've done the
following:
- made a new directory structure as follows :
C:\apache\tomcat\webapps\velexample
./velexample/WEB-INF
./velexample/WEB-INF/lib
./velexample/WEB-INF/classes
- put the velocity.jar into the velexample/WEB-INF/lib directory (it
came named as velocity-1.4.jar, have not renamed)
- put the SampleServlet.class into the velexample/WEB-INF/classes
directory
- put the sample.vm template into the velexample directory.
- restart tomcat and access the servlet at
http://127.0.0.1:8080/velexample/servlet/SampleServlet
I've done nothing else to TC other than stop/start it. on restart the
console output shows this:
Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Installing web application at context path /velexample from URL
file:C:\Apache\Tomcat\webapps\velexample
Aug 1, 2005 3:18:18 PM org.apache.catalina.startup.ContextConfig
applicationConfig
INFO: Missing application web.xml, using defaults only
StandardEngine[Catalina].StandardHost[localhost].StandardContext[/velexa
mple]
Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHost start
after restart I go to the url above and get this:
HTTP Status 404 - /velexample/servlet/SampleServlet
type Status report
message /velexample/servlet/SampleServlet
description The requested resource (/velexample/servlet/SampleServlet)
is not available.
If I go to http://127.0.0.1:8080/velexample/ I get a dir listing
If I click on the sample.vm file in the listing I get the actual
contents of the .vm file without the velocity substitutions for $name,
$list, etc displayed which is probably correct given that I'm not
running thru the servlet.
Notes towards the bottom of \velocity-1.4\docs\developer-guide.html make
reference to changes that need to be made to the web.xml file, adding:
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.foo.bar.MyServlet</servlet-class>
<init-param>
<param-name>properties</param-name>
<param-value>/velocity.properties</param-value>
</init-param>
</servlet>
Is this chg to web.xml required to run this example code?? Info is abit
thin (for me at least) on what the values for servlet-name and
servlet-class should be, looking for some help with these. If this chg
is necessary can I add it to a web.xml file in
C:\Apache\Tomcat\webapps\velexample\WEB-INF\web.xml?
All help appreciated, looking fwd to coming up to speed
Mike
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Re: Newb: SampleServlet Example not working
Posted by Andrea Sponziello <an...@unile.it>.
I think you have to do some work in web.xml file to add the servlet...
Andrea
Mike D'Ambrogia wrote:
>All,
>
>New/inexperienced in Tomcat 5.0.28 but getting there slowly, currently
>reading the tomcat tutorial. I've searched the V-U archives on
>marc.theaimsgroup.com without luck. Trying to get the simpleservlet
>example up and running without luck. I've gone overboard with info here
>in the hopes that the configuration mistake I'm making will be readily
>apparent to someone.
>
>TC located in C:\apache\tomcat\ on Win2kpro system,
>JAVA_HOME=j2sdk1.4.2_04 but also have jdk1.5.0_04 on the system too
>
>Per the instructions in
>velocity-1.4\examples\servlet_example1\readme.txt I've done the
>following:
>
> - made a new directory structure as follows :
>
> C:\apache\tomcat\webapps\velexample
> ./velexample/WEB-INF
> ./velexample/WEB-INF/lib
> ./velexample/WEB-INF/classes
>
> - put the velocity.jar into the velexample/WEB-INF/lib directory (it
>came named as velocity-1.4.jar, have not renamed)
>
> - put the SampleServlet.class into the velexample/WEB-INF/classes
>directory
>
> - put the sample.vm template into the velexample directory.
>
> - restart tomcat and access the servlet at
>http://127.0.0.1:8080/velexample/servlet/SampleServlet
>
>I've done nothing else to TC other than stop/start it. on restart the
>console output shows this:
>
>Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHostDeployer
>install
>INFO: Installing web application at context path /velexample from URL
>file:C:\Apache\Tomcat\webapps\velexample
>Aug 1, 2005 3:18:18 PM org.apache.catalina.startup.ContextConfig
>applicationConfig
>INFO: Missing application web.xml, using defaults only
>StandardEngine[Catalina].StandardHost[localhost].StandardContext[/velexa
>mple]
>Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHost start
>
>after restart I go to the url above and get this:
>
>HTTP Status 404 - /velexample/servlet/SampleServlet
>type Status report
>message /velexample/servlet/SampleServlet
>description The requested resource (/velexample/servlet/SampleServlet)
>is not available.
>
>If I go to http://127.0.0.1:8080/velexample/ I get a dir listing
>
>If I click on the sample.vm file in the listing I get the actual
>contents of the .vm file without the velocity substitutions for $name,
>$list, etc displayed which is probably correct given that I'm not
>running thru the servlet.
>
>Notes towards the bottom of \velocity-1.4\docs\developer-guide.html make
>reference to changes that need to be made to the web.xml file, adding:
>
><servlet>
> <servlet-name>MyServlet</servlet-name>
> <servlet-class>com.foo.bar.MyServlet</servlet-class>
> <init-param>
> <param-name>properties</param-name>
> <param-value>/velocity.properties</param-value>
> </init-param>
></servlet>
>
>Is this chg to web.xml required to run this example code?? Info is abit
>thin (for me at least) on what the values for servlet-name and
>servlet-class should be, looking for some help with these. If this chg
>is necessary can I add it to a web.xml file in
>C:\Apache\Tomcat\webapps\velexample\WEB-INF\web.xml?
>
>All help appreciated, looking fwd to coming up to speed
>
>Mike
>
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: velocity-user-unsubscribe@jakarta.apache.org
>For additional commands, e-mail: velocity-user-help@jakarta.apache.org
>
>
>
>
--
______________________________________________
Ing. Andrea Sponziello
Center for Advanced Computational Technologies
University of Lecce
s.p. Lecce Arnesano - 73100 Lecce - Italy
voice 0039.0832.298173
email andrea.sponziello@unile.it
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Re: Newb: SampleServlet Example not working
Posted by Nathan Bubna <nb...@gmail.com>.
if you are going to do web app development with Velocity, be sure to
check out VelocityTools. it has the successor to the deprecated
VelocityServlet, multiple example apps packaged as war files, and
other useful goodies. :)
On 8/2/05, Mike D'Ambrogia <mi...@jamagination.com> wrote:
> Thanks for the replies, they were all in the correct direction. I was
> able to get the example working finally after stumbling across the
> correct search keyword to revive a thread
> (http://marc.theaimsgroup.com/?l=velocity-user&m=104758993921759&w=2)
> from the V-U archive that noted a more correct web.xml config setup.
>
> Mike
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: velocity-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: velocity-user-help@jakarta.apache.org
>
>
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RE: Newb: SampleServlet Example not working
Posted by Mike D'Ambrogia <mi...@jamagination.com>.
Thanks for the replies, they were all in the correct direction. I was
able to get the example working finally after stumbling across the
correct search keyword to revive a thread
(http://marc.theaimsgroup.com/?l=velocity-user&m=104758993921759&w=2)
from the V-U archive that noted a more correct web.xml config setup.
Mike
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Re: Probably Spam Newb: SampleServlet Example not working
Posted by Will Glass-Husain <wg...@forio.com>.
Hi Steve,
As a side note, VelocityServlet is deprecated with the upcoming version
1.5 - consider using the Velocity Tools VelocityViewServlet which is
actively maintained and supported.
See:
http://jakarta.apache.org/velocity/webapps.html
WILL
----- Original Message -----
From: "Steve O'Hara" <so...@pivotal-solutions.co.uk>
To: "Velocity Users List" <ve...@jakarta.apache.org>;
<mi...@jamagination.com>
Sent: Tuesday, August 02, 2005 5:17 AM
Subject: RE: Probably Spam Newb: SampleServlet Example not working
> Hi Mike,
>
> The problem is in your Tomcat configuration. Here's how it works:-
>
> Firstly-
> When Tomcat cranks up, it looks in the server.xml file to determine what
> servlets/plugins etc to load.
> You need to make sure that you have a <context> descriptor in here like
> the
> following for your application;
> <Context path="/CorrMan" docBase="D:\GLA\CorrMan"
> debug="0" reloadable="false"> </Context>
> This tells Tomcat that a servlet exists in "D:\GLA\CorrMan" and that
> requests that start with /CorrMan should be directed to it e.g.
> http://localhost/CorrMan
>
> Secondly-
> A servlet directory MUST contain a WEB-INF subdirectory (e.g.
> D:/GLA/CorrMan/WEB-INF) within which there MUST be a web.xml file.
> The web.xml file tells Tomcat which class to invoke when it recieves a
> request destined for your servlet.
> Here's a typical one;
> <web-app>
> <servlet>
> <servlet-name>CorrManServlet</servlet-name>
> <servlet-class>com.pivotal.CorrManServlet</servlet-class>
> </servlet>
> <servlet-mapping>
> <servlet-name>CorrManServlet</servlet-name>
> <url-pattern>/main/*</url-pattern>
> </servlet-mapping>
> </web-app>
> This maps requests like http://localhost/CorrMan/main/blahblahblah to the
> class com.pivotal.CorrManServlet
>
> Finally-
> You need to make sure that the Tomcat servlet container can find your
> class.
> You do this by either putting it in a jar file within a lib subdirectory
> of
> WEB-INF, a war file in the root of WEB-INF or explicitly within the
> classes
> subdirectory of WEB-INF e.g.
> D:\GLA\CorrMan\WEB-INF\classes\com\pivotal\CorrManServlet.class
>
> That's about it - I haven't looked at your example to know the specific
> details, but this should be enough for you to work the rest out.
>
> Steve
>
>
> -----Original Message-----
> From:
> velocity-user-return-16463-sohara=pivotal-solutions.co.uk@jakarta.apache
> .org
> [mailto:velocity-user-return-16463-sohara=pivotal-solutions.co.uk@jakart
> a.apache.org]On Behalf Of Mike D'Ambrogia
> Sent: 01 August 2005 23:41
> To: velocity-user@jakarta.apache.org
> Subject: Probably Spam Newb: SampleServlet Example not working
>
>
> All,
>
> New/inexperienced in Tomcat 5.0.28 but getting there slowly, currently
> reading the tomcat tutorial. I've searched the V-U archives on
> marc.theaimsgroup.com without luck. Trying to get the simpleservlet
> example up and running without luck. I've gone overboard with info here
> in the hopes that the configuration mistake I'm making will be readily
> apparent to someone.
>
> TC located in C:\apache\tomcat\ on Win2kpro system,
> JAVA_HOME=j2sdk1.4.2_04 but also have jdk1.5.0_04 on the system too
>
> Per the instructions in
> velocity-1.4\examples\servlet_example1\readme.txt I've done the
> following:
>
> - made a new directory structure as follows :
>
> C:\apache\tomcat\webapps\velexample
> ./velexample/WEB-INF
> ./velexample/WEB-INF/lib
> ./velexample/WEB-INF/classes
>
> - put the velocity.jar into the velexample/WEB-INF/lib directory (it
> came named as velocity-1.4.jar, have not renamed)
>
> - put the SampleServlet.class into the velexample/WEB-INF/classes
> directory
>
> - put the sample.vm template into the velexample directory.
>
> - restart tomcat and access the servlet at
> http://127.0.0.1:8080/velexample/servlet/SampleServlet
>
> I've done nothing else to TC other than stop/start it. on restart the
> console output shows this:
>
> Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHostDeployer
> install
> INFO: Installing web application at context path /velexample from URL
> file:C:\Apache\Tomcat\webapps\velexample
> Aug 1, 2005 3:18:18 PM org.apache.catalina.startup.ContextConfig
> applicationConfig
> INFO: Missing application web.xml, using defaults only
> StandardEngine[Catalina].StandardHost[localhost].StandardContext[/velexa
> mple]
> Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHost start
>
> after restart I go to the url above and get this:
>
> HTTP Status 404 - /velexample/servlet/SampleServlet
> type Status report
> message /velexample/servlet/SampleServlet
> description The requested resource (/velexample/servlet/SampleServlet)
> is not available.
>
> If I go to http://127.0.0.1:8080/velexample/ I get a dir listing
>
> If I click on the sample.vm file in the listing I get the actual
> contents of the .vm file without the velocity substitutions for $name,
> $list, etc displayed which is probably correct given that I'm not
> running thru the servlet.
>
> Notes towards the bottom of \velocity-1.4\docs\developer-guide.html make
> reference to changes that need to be made to the web.xml file, adding:
>
> <servlet>
> <servlet-name>MyServlet</servlet-name>
> <servlet-class>com.foo.bar.MyServlet</servlet-class>
> <init-param>
> <param-name>properties</param-name>
> <param-value>/velocity.properties</param-value>
> </init-param>
> </servlet>
>
> Is this chg to web.xml required to run this example code?? Info is abit
> thin (for me at least) on what the values for servlet-name and
> servlet-class should be, looking for some help with these. If this chg
> is necessary can I add it to a web.xml file in
> C:\Apache\Tomcat\webapps\velexample\WEB-INF\web.xml?
>
> All help appreciated, looking fwd to coming up to speed
>
> Mike
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: velocity-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: velocity-user-help@jakarta.apache.org
>
>
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: velocity-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: velocity-user-help@jakarta.apache.org
>
---------------------------------------------------------------------
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RE: Probably Spam Newb: SampleServlet Example not working
Posted by Steve O'Hara <so...@pivotal-solutions.co.uk>.
Hi Mike,
The problem is in your Tomcat configuration. Here's how it works:-
Firstly-
When Tomcat cranks up, it looks in the server.xml file to determine what
servlets/plugins etc to load.
You need to make sure that you have a <context> descriptor in here like the
following for your application;
<Context path="/CorrMan" docBase="D:\GLA\CorrMan"
debug="0" reloadable="false"> </Context>
This tells Tomcat that a servlet exists in "D:\GLA\CorrMan" and that
requests that start with /CorrMan should be directed to it e.g.
http://localhost/CorrMan
Secondly-
A servlet directory MUST contain a WEB-INF subdirectory (e.g.
D:/GLA/CorrMan/WEB-INF) within which there MUST be a web.xml file.
The web.xml file tells Tomcat which class to invoke when it recieves a
request destined for your servlet.
Here's a typical one;
<web-app>
<servlet>
<servlet-name>CorrManServlet</servlet-name>
<servlet-class>com.pivotal.CorrManServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CorrManServlet</servlet-name>
<url-pattern>/main/*</url-pattern>
</servlet-mapping>
</web-app>
This maps requests like http://localhost/CorrMan/main/blahblahblah to the
class com.pivotal.CorrManServlet
Finally-
You need to make sure that the Tomcat servlet container can find your class.
You do this by either putting it in a jar file within a lib subdirectory of
WEB-INF, a war file in the root of WEB-INF or explicitly within the classes
subdirectory of WEB-INF e.g.
D:\GLA\CorrMan\WEB-INF\classes\com\pivotal\CorrManServlet.class
That's about it - I haven't looked at your example to know the specific
details, but this should be enough for you to work the rest out.
Steve
-----Original Message-----
From:
velocity-user-return-16463-sohara=pivotal-solutions.co.uk@jakarta.apache
.org
[mailto:velocity-user-return-16463-sohara=pivotal-solutions.co.uk@jakart
a.apache.org]On Behalf Of Mike D'Ambrogia
Sent: 01 August 2005 23:41
To: velocity-user@jakarta.apache.org
Subject: Probably Spam Newb: SampleServlet Example not working
All,
New/inexperienced in Tomcat 5.0.28 but getting there slowly, currently
reading the tomcat tutorial. I've searched the V-U archives on
marc.theaimsgroup.com without luck. Trying to get the simpleservlet
example up and running without luck. I've gone overboard with info here
in the hopes that the configuration mistake I'm making will be readily
apparent to someone.
TC located in C:\apache\tomcat\ on Win2kpro system,
JAVA_HOME=j2sdk1.4.2_04 but also have jdk1.5.0_04 on the system too
Per the instructions in
velocity-1.4\examples\servlet_example1\readme.txt I've done the
following:
- made a new directory structure as follows :
C:\apache\tomcat\webapps\velexample
./velexample/WEB-INF
./velexample/WEB-INF/lib
./velexample/WEB-INF/classes
- put the velocity.jar into the velexample/WEB-INF/lib directory (it
came named as velocity-1.4.jar, have not renamed)
- put the SampleServlet.class into the velexample/WEB-INF/classes
directory
- put the sample.vm template into the velexample directory.
- restart tomcat and access the servlet at
http://127.0.0.1:8080/velexample/servlet/SampleServlet
I've done nothing else to TC other than stop/start it. on restart the
console output shows this:
Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Installing web application at context path /velexample from URL
file:C:\Apache\Tomcat\webapps\velexample
Aug 1, 2005 3:18:18 PM org.apache.catalina.startup.ContextConfig
applicationConfig
INFO: Missing application web.xml, using defaults only
StandardEngine[Catalina].StandardHost[localhost].StandardContext[/velexa
mple]
Aug 1, 2005 3:18:18 PM org.apache.catalina.core.StandardHost start
after restart I go to the url above and get this:
HTTP Status 404 - /velexample/servlet/SampleServlet
type Status report
message /velexample/servlet/SampleServlet
description The requested resource (/velexample/servlet/SampleServlet)
is not available.
If I go to http://127.0.0.1:8080/velexample/ I get a dir listing
If I click on the sample.vm file in the listing I get the actual
contents of the .vm file without the velocity substitutions for $name,
$list, etc displayed which is probably correct given that I'm not
running thru the servlet.
Notes towards the bottom of \velocity-1.4\docs\developer-guide.html make
reference to changes that need to be made to the web.xml file, adding:
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.foo.bar.MyServlet</servlet-class>
<init-param>
<param-name>properties</param-name>
<param-value>/velocity.properties</param-value>
</init-param>
</servlet>
Is this chg to web.xml required to run this example code?? Info is abit
thin (for me at least) on what the values for servlet-name and
servlet-class should be, looking for some help with these. If this chg
is necessary can I add it to a web.xml file in
C:\Apache\Tomcat\webapps\velexample\WEB-INF\web.xml?
All help appreciated, looking fwd to coming up to speed
Mike
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