Http Status 404 Apache Tomcat

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posted 9 years ago
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  • Hi Joe, Attached are all the logs. Thank you Regards, Huziana Fauzi On Thu, Aug 15, 2013 at 10:34 AM, Montri Ridjaibun wrote: Hi Huziana, Seems your Tomcat is crashed and malfunctioned from your previous power failure.
  • Attempted to navigate to a 3rd party vendor sight which uses Apache. I get the following error: HTTP Status 404 - /jsonServerErrorView.jsp type Status report message.
Hi all,
I'm new to servlet to I'm testing my first servlet program but it is giving HTTP STATUS 404 error. The things which I have done are:
1> Installed java-> C:Program FilesJavajdk1.7.0
2> Installed Tomcat-> C:apache-tomcat-7.0.23
3> When I type -> localhost:8080 in the browser it works fine.
4> Directory for the folder which I created-> C:apache-tomcat-7.0.23webappsHello
It contains a web.xml file and WEB-INF folder.
Inside WEB-INF, there is a folder named classes, which contains HelloServlet.class
The Souce code for my java file 'HelloServlet.java' is given below-

web.xml file code-

After reading few suggestions I tried by changing url to /HelloServlet.htm (or .html) but still I get the same error message.
******************************************************
HTTP Status 404 - /Hello/HelloServlet.html
type Status report
message /Hello/HelloServlet.html
description The requested resource (/Hello/HelloServlet.html) is not available.
Apache Tomcat/7.0.23
******************************************************
Log file catalina.2011-12-11 is-
Dec 11, 2011 8:25:59 AM org.apache.catalina.core.AprLifecycleListener init
INFO: Loaded APR based Apache Tomcat Native library 1.1.22.
Dec 11, 2011 8:26:00 AM org.apache.catalina.core.AprLifecycleListener init
INFO: APR capabilities: IPv6 [false], sendfile [true], accept filters [false], random [true].
Dec 11, 2011 8:26:07 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ['http-apr-8080']
Dec 11, 2011 8:26:07 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ['ajp-apr-8009']
Dec 11, 2011 8:26:07 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 9718 ms
Dec 11, 2011 8:26:07 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 11, 2011 8:26:07 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.23
Dec 11, 2011 8:26:07 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappsdocs
Dec 11, 2011 8:26:11 AM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,313] milliseconds.
Dec 11, 2011 8:26:11 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappsexamples
Dec 11, 2011 8:26:12 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappsHello
Dec 11, 2011 8:26:13 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappshost-manager
Dec 11, 2011 8:26:13 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappsmanager
Dec 11, 2011 8:26:13 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:apache-tomcat-7.0.23webappsROOT
Dec 11, 2011 8:26:13 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ['http-apr-8080']
Dec 11, 2011 8:26:13 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ['ajp-apr-8009']
Dec 11, 2011 8:26:14 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 6679 ms
Please help me out as soon as possible. I'll be very much thankful to you.
Regards-
Rahul

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posted 9 years ago
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Hi,
I think the problem is that you have mapped 'HelloServlet' to your servlet and not 'HelloServlet.html'.
Did you try accessing your servlet without the .html extension?
Louis
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posted 9 years ago
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Hi,
Thanks for the reply, yes I tried with .htm and with .htm (or .html) extension. I tried url-pattern as /hello/helloservlets and /HelloServlets also but nothing worked. Can there be any problem with the code or environment variables?
Regrards-
Rahul
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posted 9 years ago
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URL patterns are case sensitive. They are also exact, unless you use a wildcard. If you want to use /Hello/HelloServlet.html in the browser, the url-pattern value must be /Hello/HelloServlet.html as well. If you want also /Hello/HelloServlet, /Hello/HelloServlet.htm and even /Hello/HelloServlet.jsp or /Hello/HelloServlet.php, change the url-pattern value into /Hello/HelloServlet*.

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posted 9 years agoHttp Status 404 Apache Tomcat
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Is the servlet container ignoring your servlet class because it's in the default package (no package)?
Try moving your servlet into a custom package (pick any unique name you want - 'mypackage' should work for testing). I think the servlet container will use it then.
Also, if your web application context is 'Hello', and your servlet's url-mapping is '/HelloServlet', the correct URI is '/Hello/HelloServlet' - case sensitive (since HTTP is case sensitive), and no .htm or .html suffix appended.

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posted 9 years ago
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Your doGet parameters look as though they are the wrong way around.
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posted 9 years ago
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Louis Bros wrote:Your doGet parameters look as though they are the wrong way around.


This is where the @Override annotation can really help you.

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posted 9 years ago
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And, the deployment descriptor (web.xml) belongs inside WEB-INF.

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posted 9 years ago
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[quote=Pete Nelson]Is the servlet container ignoring your servlet class because it's in the default package (no package)?
Try moving your servlet into a custom package (pick any unique name you want - 'mypackage' should work for testing). I think the servlet container will use it then.
Also, if your web application context is 'Hello', and your servlet's url-mapping is '/HelloServlet', the correct URI is '/Hello/HelloServlet' - case sensitive (since HTTP is case sensitive), and no .htm or .html suffix appended.[/quote]
Hi Pete thanks for the reply. Can you please tell me should I put my HelloServlet.class file into 'mypackage' or entire class folder in this my package. Then what will be the url-pattern? Will it be /mypackage/HelloServlet?
For your second suggestion, should I add @Override annotation just above doGet like we do it in toString method?
Hi Bear,
I had read somewhere that web.xml file should be placed inside the folder which we create in webapps, so I placed it inside Hello but now after your suggestion I have moved it inside WEB-INF folder. Thanks.
Thanks Pete,Louis, Bear and Rob for such a prompt response.
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posted 9 years ago
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Hi Pete,
Can you please amend the necessary code with overriding which you told and re-post it. Is it necessary to use doPost also?
Thanks.
Http status 404 apache tomcat/7.0.57
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posted 9 years ago
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Pete Nelson wrote:

Tomcat

Louis Bros wrote:Your doGet parameters look as though they are the wrong way around.

Http Status 404 Apache Tomcat 6


This is where the @Override annotation can really help you.

Apache Tomcat Http Status 404 Error


Thanks a bunch to you guys and this forum, finally my code worked after deleting everything and doing it in a fresh way.
I'm really thankful for all the suggestions they really helped me. I moved my web.xml in side WEB-INF and added @Override to doGet method, after few errors it has worked finally.