Dear,
thank you David and Christopher for your replies,
the servlet is already packaged,
I put my class in a jar file and put it in
"tomcat_home/webapps/Servlet_HTML/WEB-INF/lib/"and i made the necessary
modification to the web.xml file
<servlet>
<servlet-name>BrowseRegions</servlet-name>
<servlet-class>edu.rice.rubis.servlets.BrowseRegions</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>BrowseRegions</servlet-name>
<url-pattern>/edu.rice.rubis.servlets.BrowseRegions</url-pattern>
</servlet-mapping>
and when I call the servlet from this address
"http://localhost:8030/Servlet_HTML/edu.rice.rubis.servlets.BrowseRegions";, I
got this error:
type Status report message Servlet BrowseRegions is not available
I know I should not set any CLASSPATH variable, I just did it to test that the
class exists in the jar file
Regards
Omar
> The first exception below implies you didn't put the servlet in a
> package. Packageless classes have been strongly discouraged since
> tomcat 3 (/ancient/ history). You might want to fix that first and be
> sure to drop any future attempt at setting CLASSPATH.
>
> --David
>
> Omar Chebaro wrote:
> >
> >
> >
> > Dear,I have an "Apache Tomcat/6.0.14" installed on the latest version of
> > ubuntu osI am trying to add a servlet to the example application, I put my
> > class in a jar file and put it in
> > "tomcat_home/webapps/examples/WEB-INF/lib/"and i made the necessary
> > modification to the web.xml fileand when I call the servlet I got this
> > error:
> > type Status report
> > message Servlet BrowseRegions is not available
> > description The requested resource (Servlet BrowseRegions is not available)
> > is not available.so I made an " export
> > CLASSPATH=/tmp/tomcat/webapps/examples/WEB-INF/lib/my-jar.jar"and after
> > restarting tomcat The error message changed to this,
> > type Exception report
> > message
> > description The server encountered an internal error () that prevented it
> > from fulfilling this request.
> > exception javax.servlet.ServletException: Error allocating a servlet
> > instance
> > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
> >
> > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> >
> > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
> >
> > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
> >
> > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
> >
> > org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> > java.lang.Thread.run(Thread.java:619)
> > root cause java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
> > java.lang.ClassLoader.defineClass1(Native Method)
> > java.lang.ClassLoader.defineClass(ClassLoader.java:620)
> > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> > java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> > java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> > java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> > java.security.AccessController.doPrivileged(Native Method)
> > java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> > java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
> > java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> > java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> > java.lang.ClassLoader.defineClass1(Native Method)
> > java.lang.ClassLoader.defineClass(ClassLoader.java:620)
> > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> > java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> > java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> > java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> > java.security.AccessController.doPrivileged(Native Method)
> > java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> > java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
> > java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1273)
> >
> > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
> >
> > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
> >
> > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> >
> > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
> >
> > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
> >
> > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
> >
> > org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> > java.lang.Thread.run(Thread.java:619)what could possibly be the reason that
> > it was not loading the jar file at first, and why can't it find the
> > httpServlet now although the example HelloWorldExample is working fineThank
> > you for your timeRegardsOmar
> >
> > Windows Live Hotmail and Microsoft Office Outlook – together at last. Get
> > it now!
> > _________________________________________________________________
> > Climb to the top of the charts! Play Star Shuffle: the word scramble
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> >
>
>
> --
> =======================================
> David Smith
> Network Operations Supervisor
> Department of Entomology
> College of Agriculture & Life Sciences
> Cornell University
> 2132 Comstock Hall
> Ithaca, NY 14853
> Phone: 607.255.9571
> Fax: 607.255.0939
>
>
>
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