The requested resource (/Beer-V1/) is not available

[Ramm Kummar]

I am getting this error while trying to open a page from the application. I have created all the required deployment folders and defined the servlet in the web.xml too. Please suggest me here.

 

HTTP Status 404 - /Beer-V1/

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

type Status report

message /Beer-V1/

description The requested resource (/Beer-V1/) is not available.


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

Apache Tomcat/6.0.18


   

[Ryan Beckett]

That's not a resource in the container. Resources are HTML files, jsp pages, Servlets, etc.

[Amit Ghorpade]

And not a Tomcat question really, moving..

[Nishan Patel]

Hi,

This will shows you are not getting resource for request.

Either you make folder in your deployment environment or you have to change it in web.xml mapping of your servlet for particular request.

[Saifuddin Merchant]

Ramm Kummar wrote:I am getting this error while trying to open a page from the application. I have created all the required deployment folders and defined the servlet in the web.xml too. Please suggest me here.

 

HTTP Status 404 - /Beer-V1/

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

type Status report

message /Beer-V1/

description The requested resource (/Beer-V1/) is not available.


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

Apache Tomcat/6.0.18


   

We'll some thing has gone wrong with your deployment - either the mapping is not correct or the deployment might have failed. Try to follow the deployment steps again - If it still does not work you might have to post step wise everything that you are doing.

[Shin Kudo]

Edit: Oops, I got it working now. I figure that maybe there're some typos (with the xml's header, i guess) in my original web.xml (I typed it from the book). But I copy the xml's header from other web.xml file and the problem was solved.


I also got problem with making Tomcat to run my first servlet. I follow the steps in the Chapter 1 of Head First Servlets and JSP, 2nd ed. But I only got the message:

HTTP Status 404 -

type Status report

message

description The requested resource () is not available.
Apache Tomcat/5.5.27

Here are what I did:
- compiled and put Ch1Servlet.class into webapps\ch1\WEB-INF\classes
- created web.xml and put it into ch1\WEB-INF\ (I guess nothing's wrong with this file)

<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">

<servlet> 
     <servlet-name>Chapter1 Servlet</servlet-name>
     <servlet-class>Ch1Servlet</servlet-class>
   </servlet>
  
   <servlet-mapping>
     <servlet-name>Chapter1 Servlet</servlet-name>
     <url-pattern>/Serv1</url-pattern>
   </servlet-mapping>  
</web-app>

- run the servlet with http://localhost:8080/ch1/Serv1 and got the error message above

However, I put my Ch1Servlet.class into webapps\servlets-examples\WEB-INF\classes and added these entries:

<servlet> 
     <servlet-name>Chapter1 Servlet</servlet-name>
     <servlet-class>Ch1Servlet</servlet-class>
   </servlet>
  
   <servlet-mapping>
     <servlet-name>Chapter1 Servlet</servlet-name>
     <url-pattern>/Serv1</url-pattern>
   </servlet-mapping>  
</web-app>

into the webapps\servlets-examples\WEB-INF\web.xml then http://localhost:8080/servlets-examples/Serv1 and everything runs fine.

I don't know what went wrong here. For now, I have to put all my .class files in webapps\servlets-examples\WEB-INF\classes and modify the web.xml to make them work.

[Mohamed Inayath]

Servlet classess should be in package.
Place the servlets in a proper package and then test.

[Ramm Kummar]

you have to add the C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\Beer\WEB-INF\classes\ directory to the classpath.

[Mohamed Inayath]

Ramm Kummar wrote:you have to add the C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\Beer\WEB-INF\classes\ directory to the classpath.

Why you want to do that?

[Saifuddin Merchant]

Ramm Kummar wrote:you have to add the C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\Beer\WEB-INF\classes\ directory to the classpath.

You have to do no such thing. The container takes care of everything inside your webapps folder!

[Saifuddin Merchant]

@ Cloud Walker - You sure you got all your cases right? You could try one thing out. Place a simple 'hello word' html file @ webapps\ch1\.
Try accessing the hello world file (lets call it helloWorld.html) using the link --> http://localhost:8080/ch1/helloWorld.html. Does it work?

You could also try Mohamed Inayath suggestion of putting your class in a package - it sometimes cause problems if you don't place your servlet code in a package - though i am not sure why!

[Bear Bibeault]

"Cloud Walker", please check your private messages for an important administrative matter.

[Shin Kudo]

Sam Mercs wrote:@ Cloud Walker - You sure you got all your cases right? You could try one thing out. Place a simple 'hello word' html file @ webapps\ch1\.
Try accessing the hello world file (lets call it helloWorld.html) using the link --> http://localhost:8080/ch1/helloWorld.html. Does it work?

You could also try Mohamed Inayath suggestion of putting your class in a package - it sometimes cause problems if you don't place your servlet code in a package - though i am not sure why!

Everything's alright now. Thank you!

[Krzychu Montana]

[duplicate removed]

[Devendar Rao]

Run into same problem: 404 error
A quick fix
1. Trust the instruction given in book and please place your files in corresponding folders
2. Make sure you are using tomcat version 5.x mine is 5.5.28 ...( apart from other complexity while compiling servlet by javac the classpath to needed libraries are different on version 6.x)
3. If you cannot see anything except 404. TYPO ERROR is main culprit especially in web.xml
A quick check
a. can you see the form in browser when you type http://localhost:8080/Beer-v1/form.html
b. If no just remove or rename web.xml try again after running shutdown.sh and startup.sh
---if you can see then chances are high that you have some typo in web.xml
A quick fix:
go to ----/apache-tomcat-5.5.28/webapps/ROOT/WEB-INF and copy web.xml and put it in
/apache-tomcat-5.5.28/webapps/Beer-v1/WEB-INF and edit following 4 lines in web.xml


<servlet-name>Ch3Beer</servlet-name>
<servlet-class>com.example.web.BeerSelect</servlet-class>

<servlet-name>Ch3Beer</servlet-name>
<url-pattern>/SelectBeer.do</url-pattern>

try again after running shutdown.sh and startup.sh

4. may be you can see the form but pressing submit gives nothing----if you are sure you have compiled and put class in appropriate directories -- then possible culprit is a typo error in form.html---check the following line it must be
action="SelectBeer.do">

5. file permissions---i am linux user--never find any probs with file permission in this case---please dont mess with it...default is ok...

simple solution are best solutions

[William Asher]

Ran into same problem doing the exercise in chapter 3 of Head First Servlets & JSP.

Solution:

1) Pull all hairs out
2) Do what Devender Rao and Shin Kudo said (mainly look for, find, and correct typos in web.xml)
3) Successful deployment of the Beer Selection web app.

Thanks Javaranch!

William Asher