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requested resource not found error
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naved momin
Ranch Hand
Joined: Jul 03, 2011
Posts: 675
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i was making my first web app and fall into this problem , the problem is when i click on a submit button on a html form (welcome page ) it directs me to a http 404 not found error (requested resource not found error)
my web.xml file
my actual servlet class
my welcome page
can any one help me please......???
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Matthew Brown
Bartender
Joined: Apr 06, 2010
Posts: 3795
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You haven't mapped your servlet to any URLs. You need a <servlet-mapping> tag in your web.xml.
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naved momin
Ranch Hand
Joined: Jul 03, 2011
Posts: 675
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Matthew Brown wrote:You haven't mapped your servlet to any URLs. You need a <servlet-mapping> tag in your web.xml.
still same problem
now what ?
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Matthew Brown
Bartender
Joined: Apr 06, 2010
Posts: 3795
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naved momin wrote:still same problem
now what ?
And is your form posting to the URL that you've just mapped your servlet to?
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naved momin
Ranch Hand
Joined: Jul 03, 2011
Posts: 675
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Matthew Brown wrote:
naved momin wrote:still same problem
now what ?
And is your form posting to the URL that you've just mapped your servlet to?
changed the form action to this
still the same 404 error ? now what else can we do ?
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56224
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You should be prefixing the action url with the context path of the web app.
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naved momin
Ranch Hand
Joined: Jul 03, 2011
Posts: 675
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Bear Bibeault wrote:You should be prefixing the action url with the context path of the web app.
you mean to say like this
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56224
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Victor M. Pereira
Ranch Hand
Joined: Mar 02, 2012
Posts: 50
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I can't believe no one has pointed this, but haven't you seen that your <servlet-class> in your DD ends with .Demo instead of .java
naved nomin wrote:
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regards,
Victor M. Pereira
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Prasad Krishnegowda
Ranch Hand
Joined: Apr 25, 2010
Posts: 503
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servlet class should never end with .java or any extension, just the fully qualified name of servlet should be given there..
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Regards, Prasad
SCJP 5 (93%)
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Victor M. Pereira
Ranch Hand
Joined: Mar 02, 2012
Posts: 50
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sorry, I forgot that part!
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sridhar sivaraman
Greenhorn
Joined: Mar 02, 2012
Posts: 13
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when using your url pattern in the <form> tag, just omit the /
so, that your code will be,
<form action="demo" .........>
try and post your output 
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56224
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sridhar sivaraman wrote:when using your url pattern in the <form> tag, just omit the /
so, that your code will be,
<form action="demo" .........>
try and post your output
No. No. No. No. No. That's very bad advice.
Always start the action URL with the context path. Otherwise it's page-relative and fragile and will easily break with the smallest change in the web application.
Follow best practices. They exists because they've been proven to work.
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subject: requested resource not found error
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