deployment problem

[saikrishna cinux]

I have two servers for database application server(Oracle 9i) and webservers(tomcat) individually.
I am able to run the webapplication from the server but if deploy the same application in my system i am not able to run it..


what should be the problem

should i need to change the configuration file of webserver






thanx in advance


cinux

[Ben Souther]

Which is your system?
What errors are you getting?

[saikrishna cinux]

my system is localhost .
i am able to run a jsp file
but if i submit the information and send my data to the servlet then it give error saying that the servlet cannot be found at particular location


hope u can understand my problem ...
please help me...
cinux

[Ben Souther]

What are you putting in the action attribute of your form?

[saikrishna cinux]

exactly like this

document.mainForm.action=/VisuTestingServices/servlet/com.vlms.vts.grandtest.gre.blueprint.GreIndQnBnkBluePrintServlet

[Ben Souther]

I assume that the one that is not working is Tomcat.
From the look of your form action, you are relying on the InvokerServlet.
See:
http://faq.javaranch.com/view?InvokerServlet


Note: If you're only using Tomcat to create an inexpensive development environment on your desktop and your production server supports this 'invoker like' behavior (and your not in a position to change how things get deployed on the production server), it may actually make sense for you to uncomment the invoker in Tomcat. You'll find the entry in tomcat/conf/web.xml.

[Amarender Reddy]

hi,
please post the error(console log),so that it would be more easy to trouble-shoot your problem.

[saikrishna cinux]

Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server Error

--------------------------------------------------------------------------------

type Exception report

message Internal Server Error

description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.

exception

java.lang.NullPointerException
at org.apache.jsp.GreBluePrint$jsp._jspService(GreBluePrint$jsp.java:134)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
at java.lang.Thread.run(Thread.java:536)



--------------------------------------------------------------------------------

[saikrishna cinux]

Originally posted by Ben Souther:
I assume that the one that is not working is Tomcat.
From the look of your form action, you are relying on the InvokerServlet.
See:
http://faq.javaranch.com/view?InvokerServlet


Note: If you're only using Tomcat to create an inexpensive development environment on your desktop and your production server supports this 'invoker like' behavior (and your not in a position to change how things get deployed on the production server), it may actually make sense for you to uncomment the invoker in Tomcat. You'll find the entry in tomcat/conf/web.xml.

yes the application was deployed in tomcat 4.0 in the server system.
but in my loaclhost sytem i have tomcat5.0
I think this might be the problem.

what actual changes need to be done in my config/web.xml file


thanking u for ur reply



cinux

[Ben Souther]

The problem I was thinking of wouldn't have caused a nullPointerException.
It would have given you a 404 "file not found" error right in your browser's window.

Look at the generated source to see if you can nail down what's causing the nullPointerException.

java.lang.NullPointerException
at org.apache.jsp.GreBluePrint$jsp._jspService(GreBluePrint$jsp.java:134)


You may also be having issues if you are relying on the InvokerServlet but I would look to see what's causing that other error first.

Try this: stopp tomcat, clear all of your logs, start tomcat, and try to hit the page in question. Then look at the logs.
If you don't see that NullPointerException, then you know the two problems are not related.

[saikrishna cinux]

sir, i have checked the web.xml file and uncommented the invoker servlet but no use of it.

please provide me another solution


thanx in advance


cinux

[saikrishna cinux]

I am not getting any nullPointerException
I have checked in log files,which u have told me to do

It's very urgent please help me...


cinux

[Ben Souther]

Did you also un-comment the mapping for the invoker servlet?

 
                                                                                                         
    <!-- The mapping for the invoker servlet -->
<!--
    <servlet-mapping>
        <servlet-name>invoker</servlet-name>
        <url-pattern>/servlet/*</url-pattern>
    </servlet-mapping>
-->
                                                                                                         

Again, it is almost never a good idea to un-comment the invoker servlet.
Was my earlier guess correct?
Is your production environment really set up to invoke servlets with the class name?
If so, is there any chance of changing that?

[saikrishna cinux]

ya i have un commented the invoker servlet but no advantage of it :roll:

Atlast i have deployed it in tomcat4.0 nad it's working now

I am very happy now
but i want to run the same aapplication in tomcat 5.0.
I want to know the reason why it is not running in that version?

is there any way to run the application otehr than uncommenting the invoker servlet



hoping for the best suggestion from u


cinux