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Posted to users@tomcat.apache.org by David Salisbury <sa...@globe.gov> on 2006/08/29 22:54:13 UTC
XSQL
I'm not sure if I have a tomcat configuration problem or some other problem. I'm try to get Oracle's XSQLServer
application up and working under tomcat... but something's amiss. In trying to get a proof of concept going, I'm
installing under servlets-examples under the tomcat installation directory. I'm a newbie on tomcat, but it's my
understanding that installing applications under the installation directory will help in that I will not have to change
server.xml or CLASSPATH. Is that correct? Seems that tomcat _should_ be able to serve
/usr/local/tomcat/webapps/servlets-examples/WEB-INF/demo.xml without changes to server.xml, but it only
seems to see this file if I put a <Context> directive into server.xml.
But the above .xml problem may be parenthetical.. back to my XSQL
So, I have the class files that Oracle says I need under
webapps/servlets-examples/WEB-INF/lib
oraclexsql.jar xmlparserv2.jar xsqlserializers.jar xsu12.jar
with the XSQLConfig.xml file is in here too
In order to get the servlet to kick off with a url referencing a .xsql file extension, I have in servlets-examples/WEB-INF/web.xml
<servlet>
<servlet-name>xsql</servlet-name>
<servlet-class>oracle/xml/xsql/XSQLServlet</servlet-class> <!-- path from the oraclexsql.jar in lib -->
</servlet>
<servlet-mapping>
<servlet-name>xsql</servlet-name>
<url-pattern>*.xsql</url-pattern>
</servlet-mapping>
It seems that indeed, the XSQLServlet app is launched with a url reference to
http://farley:8090/servlets-examples/demo.xsql
It seems to be found if this demo.xsql file is under WEB-INF or WEB-INF/classes ( normal? ).
But I get the error message on the browser: XSQL-001: Cannot locate requested XSQL file. Check the name.
either way. I don't see any messages in the tomcat log files.
So tomcat seems to find the file, but the servlet doesn't.
Adjusting my CLASSPATH to add tomcat/webapps/servlets-examples/WEB-INF in either
setclasspath.sh or catalina.sh seems to have no effect.
Any help on how things should be set up is more than appreciated.
-ds
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Re: XSQL
Posted by David Smith <dn...@cornell.edu>.
The servlet spec would offer a world of insight into the proper places
of files. But let's take all this one step at a time. My comments are
intermixed.
David Salisbury wrote:
>I'm not sure if I have a tomcat configuration problem or some other problem. I'm try to get Oracle's XSQLServer
>application up and working under tomcat... but something's amiss. In trying to get a proof of concept going, I'm
>installing under servlets-examples under the tomcat installation directory. I'm a newbie on tomcat, but it's my
>understanding that installing applications under the installation directory will help in that I will not have to change
>server.xml or CLASSPATH. Is that correct?
>
Yes.
>Seems that tomcat _should_ be able to serve
>/usr/local/tomcat/webapps/servlets-examples/WEB-INF/demo.xml without changes to server.xml, but it only
>seems to see this file if I put a <Context> directive into server.xml.
>
>
>
According to the servlet spec, demo.xml cannot be served directly to the
client. WEB-INF is protected space for application files like configs,
classes, library jar files, etc., ...
>But the above .xml problem may be parenthetical.. back to my XSQL
>
>So, I have the class files that Oracle says I need under
>
>webapps/servlets-examples/WEB-INF/lib
> oraclexsql.jar xmlparserv2.jar xsqlserializers.jar xsu12.jar
>
> with the XSQLConfig.xml file is in here too
>
>
>
Technically speaking, if this file is supposed to be visible to the
classloader (aka classpath), you should have it in WEB-INF/classes.
>In order to get the servlet to kick off with a url referencing a .xsql file extension, I have in servlets-examples/WEB-INF/web.xml
>
> <servlet>
> <servlet-name>xsql</servlet-name>
> <servlet-class>oracle/xml/xsql/XSQLServlet</servlet-class> <!-- path from the oraclexsql.jar in lib -->
> </servlet>
> <servlet-mapping>
> <servlet-name>xsql</servlet-name>
> <url-pattern>*.xsql</url-pattern>
> </servlet-mapping>
>
>
>
This may not be breaking anything, but servlet-class is usually
expressed in a dot notation like oracle.xml.xsql.XSQLServlet
>It seems that indeed, the XSQLServlet app is launched with a url reference to
>
>http://farley:8090/servlets-examples/demo.xsql
>
>It seems to be found if this demo.xsql file is under WEB-INF or WEB-INF/classes ( normal? ).
>
>
>
Your servlet mapping is correctly invoking the XSQLServlet class because
of the wildcard *.xsql. The servlet itself can't find the file.
>But I get the error message on the browser: XSQL-001: Cannot locate requested XSQL file. Check the name.
>either way. I don't see any messages in the tomcat log files.
>
>So tomcat seems to find the file, but the servlet doesn't.
>
>
Tomcat isn't seeing the file and has no idea about it. It's just
matching the request to the proper servlet. You could try
http://farley:8090/servlet-examples/foobar.xsql to see evidence of that.
>Adjusting my CLASSPATH to add tomcat/webapps/servlets-examples/WEB-INF in either
>setclasspath.sh or catalina.sh seems to have no effect.
>
>
Don't mess with classpath. It will always bring about headaches. If
the files are in their proper place, things will work. Again, a browse
of the servlet spec will offer a world of insight.
>Any help on how things should be set up is more than appreciated.
>
>-ds
>
>
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>To start a new topic, e-mail: users@tomcat.apache.org
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
>
>
--David
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