Running HelloWorld Servlet--Tomcat 4.1

Dear Sir,
With most humble submission I would like to inform you that I have recently downloaded Tomcat 4.1 from http://jakarta.apache.org/ and installed it on Windows 98. I am using jdk1.3
I am an amateur for Java Servlets. I am following the instructions given in the book "Java Servlet Programming" by O'reilly and according to this book I have to store my class files(I tried with HelloWorld.class) in the dir server_root/webapps/root/web-inf/classes dir. but when i called it from microsoft internet explorer 5.0(the browser i am using currently) using the URL http://localhost:8080/servlet/HelloWorld
I get the 404 error.
I also tried to call a static file (.html) by storing it in the dir server_root/webapps/root(according to the book) and i get the proper output but not in case of .class file. Even the example codes provided with the server do not run.
Please help me to fix out my problem.
Thanking you in anticipation,
Yours sincerely
roopesh

Hi:
1)You need set classpath
2) do you open your Tomcat?
Thank

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Sourav_cs wrote:
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~

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I have compiled the servlet and put the class file HelloWorld.class inside
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and also mapped servlet in
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<web-app xmlns="http://java.sun.com/xml/ns/javaee"
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<servlet-mapping>
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</web-app>and run the servlet using this url......*.http://localhost/HelloWorld*
but I got following error code under tomcat 6.0.18
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.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
     org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
     org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
     org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
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root cause
java.lang.NoClassDefFoundError: HelloWorld (wrong name: hall/HelloWorld)
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     org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:890)
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     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
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note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.is there something I did wrong?
Edited by: san_4u on Mar 16, 2009 1:20 AM

root cause
java.lang.NoClassDefFoundError: HelloWorld (wrong name: hall/HelloWorld)Is your servlet contains first line as package hall;If it is there,remove it from the servlet code. And run your program.
If you want to keep it, then make a folder named hall in classes folder and put your HelloWorld.class there. Also change <servlet-class> as
<servlet>
    <servlet-name>HelloWorld</servlet-name>
    <servlet-class>hall.HelloWorld</servlet-class>
</servlet>

Beginner's Stuff - HelloWorld Servlet

          Here's my net to nothing DD.
          <?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE web-app
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          "http://java.sun.com/dtd/web-app_2_3.dtd">
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                    <servlet-class>HelloWorldServlet</servlet-class>
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          The WebApp Name is Hello
          Whatever I do (hostname:port/Hello/HelloWorld or hostname:port/Hello/servlet/HelloWorld
          - This one run fine on Tomcat), I keep getting 404.
          What Wrong ??? Somebody help before I go crazy.
          Thanx.


          You need to have a
          <servlet-mapping>
          <servlet-name>servlet</servlet-name>
          <url-pattern>/*</url-pattern>
          </servlet-mapping>
          see http://e-docs.bea.com/ for details :)
          "Lindsay Chap" <[email protected]> wrote:
          >
          >Here's my net to nothing DD.
          >
          ><?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE web-app
          > PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
          > "http://java.sun.com/dtd/web-app_2_3.dtd">
          >
          ><web-app>
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          >          <servlet-name>HelloWorld</servlet-name>
          >           <servlet-class>HelloWorldServlet</servlet-class>
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          ></web-app>
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          >The WebApp Name is Hello
          >Whatever I do (hostname:port/Hello/HelloWorld or hostname:port/Hello/servlet/HelloWorld
          >- This one run fine on Tomcat), I keep getting 404.
          >
          >What Wrong ??? Somebody help before I go crazy.
          >
          >Thanx.

Error while running application with Tomcat 5.0

Hi,
I am trying to run my application on Tomcat 5.0. I have java environment version 1.4
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Mar 30, 2007 3:51:03 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Mar 30, 2007 3:51:03 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1047 ms
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Mar 30, 2007 3:51:03 PM org.apache.catalina.core.StandardHost start
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Mar 30, 2007 3:51:03 PM org.apache.catalina.core.StandardHost
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Mar 30, 2007 3:51:03 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Processing Context configuration file URL file:C:\Program
Files\Apache Sof
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Mar 30, 2007 3:51:04 PM org.apache.struts.util.PropertyMessageResources
<init>
INFO: Initializing, config='org.apache.struts.util.LocalStrings',
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e
Mar 30, 2007 3:51:04 PM org.apache.struts.util.PropertyMessageResources
<init>
INFO: Initializing, config='org.apache.struts.action.ActionResources',
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l=true
Mar 30, 2007 3:51:05 PM org.apache.struts.util.PropertyMessageResources
<init>
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config='org.apache.webapp.admin.ApplicationResources', retur
nNull=true
Mar 30, 2007 3:51:06 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Processing Context configuration file URL file:C:\Program
Files\Apache Sof
tware Foundation\Tomcat 5.0\conf\Catalina\localhost\balancer.xml
Mar 30, 2007 3:51:07 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Processing Context configuration file URL file:C:\Program
Files\Apache Sof
tware Foundation\Tomcat 5.0\conf\Catalina\localhost\manager.xml
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file:C:\
Program Files\Apache Software Foundation\Tomcat 5.0\webapps\jsp-examples
Mar 30, 2007 3:51:07 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Installing web application at context path from URL
file:C:\Program Files
\Apache Software Foundation\Tomcat 5.0\webapps\ROOT
Mar 30, 2007 3:51:07 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Installing web application at context path /servlets-examples from
URL fil
e:C:\Program Files\Apache Software Foundation\Tomcat
5.0\webapps\servlets-exampl
es
Mar 30, 2007 3:51:07 PM org.apache.catalina.core.StandardHostDeployer
install
INFO: Installing web application at context path /tomcat-docs from URL
file:C:\P
rogram Files\Apache Software Foundation\Tomcat 5.0\webapps\tomcat-docs
Mar 30, 2007 3:51:07 PM org.apache.catalina.core.StandardHostDeployer
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m Files\Apache Software Foundation\Tomcat 5.0\webapps\webdav
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Mar 30, 2007 3:51:07 PM org.apache.jk.common.ChannelSocket init
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Mar 30, 2007 3:53:08 PM org.apache.struts.util.PropertyMessageResources
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java:39)
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sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.commons.beanutils.PropertyUtils.setSimpleProperty(Property
Utils.java:1656)
at
org.apache.commons.beanutils.PropertyUtils.setNestedProperty(Property
Utils.java:1551)
at
org.apache.commons.beanutils.PropertyUtils.setProperty(PropertyUtils.
java:1580)
at
org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:919
at
org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:726)
at
org.apache.commons.digester.SetPropertiesRule.begin(SetPropertiesRule
.java:251)
at org.apache.commons.digester.Rule.begin(Rule.java:152)
at
org.apache.commons.digester.Digester.startElement(Digester.java:1361)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Sour
ce)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unkn
own Source)
at
org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Sourc
e)
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org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unkn
own Source)
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org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent
Dispatcher.dispatch(Unknown Source)
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org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un
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at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
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org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionSe
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org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet
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at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:470)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
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org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
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at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:86
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at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4013)
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org.apache.catalina.core.StandardContext.start(StandardContext.java:4
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org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
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org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDep
loyer.java:277)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
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org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.j
ava:701)
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org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432
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org.apache.catalina.startup.HostConfig.check(HostConfig.java:1083)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:327)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
at
org.apache.catalina.core.StandardHost.backgroundProcess(StandardHost.
java:800)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p
rocessChildren(ContainerBase.java:1619)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p
rocessChildren(ContainerBase.java:1628)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.r
un(ContainerBase.java:1608)
at java.lang.Thread.run(Thread.java:534)
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com/hyperceller/form/LoginFor
m (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
3)
at
org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp
ClassLoader.java:1634)
at
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa
der.java:860)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1307)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1189)
at
org.apache.struts.config.FormBeanConfig.formBeanClass(FormBeanConfig.
java:320)
at
org.apache.struts.config.FormBeanConfig.setType(FormBeanConfig.java:1
91)
... 46 more
Mar 30, 2007 3:53:09 PM org.apache.struts.action.ActionServlet
handleConfigExcep
tion
SEVERE: Parsing error processing resource path
java.lang.reflect.InvocationTargetException
at
org.apache.commons.digester.Digester.createSAXException(Digester.java
:2919)
at
org.apache.commons.digester.Digester.createSAXException(Digester.java
:2945)
at
org.apache.commons.digester.Digester.startElement(Digester.java:1364)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Sour
ce)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unkn
own Source)
at
org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Sourc
e)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unkn
own Source)
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org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent
Dispatcher.dispatch(Unknown Source)
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known Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
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org.apache.commons.digester.Digester.parse(Digester.java:1647)
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org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionSe
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org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
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org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:86
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at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4013)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4
357)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:823)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDep
loyer.java:277)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.j
ava:701)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432
at
org.apache.catalina.startup.HostConfig.check(HostConfig.java:1083)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:327)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
at
org.apache.catalina.core.StandardHost.backgroundProcess(StandardHost.
java:800)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p
rocessChildren(ContainerBase.java:1619)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.p
rocessChildren(ContainerBase.java:1628)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.r
un(ContainerBase.java:1608)
at java.lang.Thread.run(Thread.java:534)
Mar 30, 2007 3:53:44 PM org.apache.struts.util.PropertyMessageResources
<init>
INFO: Initializing, config='org.apache.struts.taglib.html.LocalStrings',
returnN
ull=true
Mar 30, 2007 3:53:44 PM org.apache.struts.util.PropertyMessageResources
<init>
INFO: Initializing, config='org.apache.struts.util.LocalStrings',
returnNull=tru
e
Mar 30, 2007 3:53:44 PM org.apache.struts.util.PropertyMessageResources
<init>
INFO: Initializing, config='org.apache.struts.taglib.html.LocalStrings',
returnN
ull=true
could anyone tell me what the problem may be???
Note: When I configure my application on the Tomcat 5.5 and java 1.5 then it runs fine. But the problem arises when I compile my code on the java 1.4 and run on the Tomcat 5.0
Thanks in advance!!

I am sorry that I forgot to tell you that I am running a struts application. Struts 1.1

Error While trying to run a servlet

I am getting the below error while trying to run a servlet using tomcat.In this admin is a directory where I have a html file called admin.html which calls the servlet AdminServlet & replaces the url by /servlet/AdminServlet.
HTTP Status 404 - /SPOT/admin/servlet/AdminServlet
type Status report
message /SPOT/admin/servlet/AdminServlet
description The requested resource (/SPOT/admin/servlet/AdminServlet) is not available.
For more details I am also copying the code from the admin.html file below.
<script language=JavaScript>
document.location.replace('../servlet/AdminServlet');
</script>

JavaScript != javareplace or redirect ??

Error while running HelloWorld page in OAF

Hi,
While running Helloworld tutorial its throwing following Exception:
oracle.apps.fnd.framework.OAException: Application: ICX, Message Name: Could not create the transaction Id for this session. at oracle.apps.fnd.framework.CreateIcxSession.createTransaction(CreateIcxSession.java:520) at runregion.jspService(runregion.jsp:103) at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:727) at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306) at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803) at java.lang.Thread.run(Thread.java:534)
Few days back it was running successfully after that no setup change has been made.
Please suggest the reason.
Thanks in advance for your help.

Hi ,
1) Try deleting all the class files and try to run.
2) If you get another instance dbc file try running the file against the database.
3) Create a connection to the database from Jdev and Test it, it is working or not,
Once it get success message, then try to run the page.
4) Or instead of running the HelloWorld, create your own PG.xml and add a AM and CO and try to run the file.
Thanks.
With Regards,
Kali.
OSSI.

Having problem running a servlet program in Tomcat5.5

Hi,
I wrote a sample servlet, HelloWorld.java and I compiled it and put the .class file in the WEB-INF\Classes directory in the Tomcat directory. Now when I do this,
http://localhost:8080/ it's working fine but when I do this, http://localhost:8080/servlet/HelloWorld I am getting an error message "*HTTP Status 404"*.
I have done no changes to web.xml and server.xml. Should I be doing anything?
My HelloWorld.Java file is as below.
package Users.Ravi.Desktop.CurrentProject.Servlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
      throws ServletException, IOException {
    PrintWriter out = response.getWriter();
    out.println("Hello World");
}Thanks.

Ah, I see the problem now. You need to put servlet class as
<code class="jive-code jive-java">Users.Ravi.Desktop.CurrentProject.Servlets.HelloWorld</code>
<code class="jive-code jive-java">So, your web.xml will have</code>
<servlet>
     <servlet-name>HelloWorld</servlet-name>
     <servlet-class></code><code class="jive-code jive-java">Users.Ravi.Desktop.CurrentProject.Servlets.HelloWorld</code><code class="jive-code jive-java"></servlet-class>
</servlet>{code}

Running HelloWorld Servlet--Tomcat 4.1

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