RE: First Servlet 404 error
Howdy,
Read the spec... When asking for a RequestDispatcher the resource path
you're requesting must start with a / indicating its relativity to the
context docBase.
Yoav Shapira
Millennium ChemInformatics
>-Original Message-
>From: Jim Si [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, September 02, 2003 11:11 AM
>To: Tomcat Users List; [EMAIL PROTECTED]; [EMAIL PROTECTED]
>Subject: Re: First Servlet 404 error
>
>Then I got HTTP Status 500 error
>
>description The server encountered an internal error () that prevented
it
>from
>fulfilling this request.
>
>exception
>
>java.lang.IllegalArgumentException: Path welcome.jsp does not start
with a
>"/"
>character
>at
>org.apache.catalina.core.ApplicationContext.getRequestDispatcher(Applic
atio
>nContext.java:1179)
>
>
>
>
>Stuart MacPherson wrote:
>
>> Tomcat can usually find JSPs very easily. Is welcome.jsp also in
>> CATALINA_HOME/webapps/onjava/ ? Try the following:
>>
>> private String target = "welcome.jsp";
>>
>> If 'onjava' is your namespace then this might work.
>>
>> -----Original Message-
>> From: Jim Si [mailto:[EMAIL PROTECTED]
>> Sent: 29 August 2003 19:04
>> To: Tomcat Users List
>> Cc: Stuart MacPherson
>> Subject: Re: First Servlet 404 error
>>
>> Thank you Stuart for your great help.
>>
>> HellowWorld servlet works! But I still have one problem.
>>
>> I got login.jsp in the webapps\onjava directory. It has
>> action="servlet/com.onjava.login">
>>
>> In login.java, it has
>> private String target = "/welcome.jsp";
>> ...
>> // Forward the request to the target named
>> ServletContext context = getServletContext();
>> RequestDispatcher dispatcher =
context.getRequestDispatcher(target);
>> dispatcher.forward(request, response);
>>
>> In welcome.jsp, it has very simple return statement.
>>Welcome : <%= request.getAttribute("USER")
>>
>> In webapps\onjava\Web-inf\web.xml, I have
>>
>> login
>> com.onjava.login
>>
>>
>>
>> login
>> /servlet
>>
>>
>> In a browser, I use http://localhost:8080/onjava/login.jsp and I got
the
>> login
>> screen, then click on submit button. I got the following error.
>>
>> HTTP Status 404 - /welcome.jsp
>> description The requested resource (/welcome.jsp) is not available.
>>
>> Look like it runs the login class, how do I correct this problem?
Thank
>> you.
>>
>> > Also, make sure your HelloWorld servlet is mapped-in in your
webapps
>> > deployment descriptor. By the way, the folder should be called
WEB-INF
>> not
>> > web-inf.
>> >
>>
>> Windows somehow change WEB-INF to Web-inf automatically. I could not
use
>> WEB-INF.
>>
>> Jim
>>
>> -
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>> -
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>-
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Re: First Servlet 404 error
Then I got HTTP Status 500 error
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception
java.lang.IllegalArgumentException: Path welcome.jsp does not start with a "/"
character
at
org.apache.catalina.core.ApplicationContext.getRequestDispatcher(ApplicationContext.java:1179)
Stuart MacPherson wrote:
> Tomcat can usually find JSPs very easily. Is welcome.jsp also in
> CATALINA_HOME/webapps/onjava/ ? Try the following:
>
> private String target = "welcome.jsp";
>
> If 'onjava' is your namespace then this might work.
>
> -Original Message-
> From: Jim Si [mailto:[EMAIL PROTECTED]
> Sent: 29 August 2003 19:04
> To: Tomcat Users List
> Cc: Stuart MacPherson
> Subject: Re: First Servlet 404 error
>
> Thank you Stuart for your great help.
>
> HellowWorld servlet works! But I still have one problem.
>
> I got login.jsp in the webapps\onjava directory. It has
>
>
> In login.java, it has
> private String target = "/welcome.jsp";
> ...
> // Forward the request to the target named
> ServletContext context = getServletContext();
> RequestDispatcher dispatcher = context.getRequestDispatcher(target);
> dispatcher.forward(request, response);
>
> In welcome.jsp, it has very simple return statement.
>Welcome : <%= request.getAttribute("USER")
>
> In webapps\onjava\Web-inf\web.xml, I have
>
> login
> com.onjava.login
>
>
>
> login
> /servlet
>
>
> In a browser, I use http://localhost:8080/onjava/login.jsp and I got the
> login
> screen, then click on submit button. I got the following error.
>
> HTTP Status 404 - /welcome.jsp
> description The requested resource (/welcome.jsp) is not available.
>
> Look like it runs the login class, how do I correct this problem? Thank
> you.
>
> > Also, make sure your HelloWorld servlet is mapped-in in your webapps
> > deployment descriptor. By the way, the folder should be called WEB-INF
> not
> > web-inf.
> >
>
> Windows somehow change WEB-INF to Web-inf automatically. I could not use
> WEB-INF.
>
> Jim
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: First Servlet 404 error
One more nit-pick. As I said earlier, use "/servlet/login" instead of
"servlet/com.onjava.login". Then you can turn off the InvokerServlet,
which could be used for security exploits. Your current mapping (in
your last email) had
login
/servlet
What exactly are you trying to achieve here? This is simply in error.
Do you really want "/servlet" to map to your login servlet each and
every time? You would not be able to have any other servlets in your
application. Perhaps what you are trying to do is have all
unauthenticated requests to go to the login servlet? To do this, use a
, , and instead.
(See Tomcat's admin and manager applications for an example). Then you
can map all requests into your web app (the ones you want secured
anyway) to your login.jsp that you are working on.
I'm not sure if that will fix your welcome.jsp problem; probably not.
Try removing the slash like Stuart said, though it should work either
way if welcome.jsp is in webapps/onjava/
- Jeff Tulley
>>> [EMAIL PROTECTED] 8/29/03 5:36:36 PM >>>
Tomcat can usually find JSPs very easily. Is welcome.jsp also in
CATALINA_HOME/webapps/onjava/ ? Try the following:
private String target = "welcome.jsp";
If 'onjava' is your namespace then this might work.
-Original Message-
From: Jim Si [mailto:[EMAIL PROTECTED]
Sent: 29 August 2003 19:04
To: Tomcat Users List
Cc: Stuart MacPherson
Subject: Re: First Servlet 404 error
Thank you Stuart for your great help.
HellowWorld servlet works! But I still have one problem.
I got login.jsp in the webapps\onjava directory. It has
In login.java, it has
private String target = "/welcome.jsp";
...
// Forward the request to the target named
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher(target);
dispatcher.forward(request, response);
In welcome.jsp, it has very simple return statement.
Welcome : <%= request.getAttribute("USER")
In webapps\onjava\Web-inf\web.xml, I have
login
com.onjava.login
login
/servlet
In a browser, I use http://localhost:8080/onjava/login.jsp and I got
the
login
screen, then click on submit button. I got the following error.
HTTP Status 404 - /welcome.jsp
description The requested resource (/welcome.jsp) is not available.
Look like it runs the login class, how do I correct this problem?
Thank
you.
> Also, make sure your HelloWorld servlet is mapped-in in your webapps
> deployment descriptor. By the way, the folder should be called
WEB-INF
not
> web-inf.
>
Windows somehow change WEB-INF to Web-inf automatically. I could not
use
WEB-INF.
Jim
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: First Servlet 404 error
One note: Windows only makes it look like you have the name Web-inf. Do a "Properties" on it (right click, choose properties), and you might see it is actualy "WEB-INF". So, you might be ok. Windows doesn't change the folder, it just displays it innacurately. - Jeff Tulley >>> [EMAIL PROTECTED] 8/29/03 5:36:36 PM >>> Tomcat can usually find JSPs very easily. Is welcome.jsp also in CATALINA_HOME/webapps/onjava/ ? Try the following: private String target = "welcome.jsp"; If 'onjava' is your namespace then this might work. -Original Message- From: Jim Si [mailto:[EMAIL PROTECTED] Sent: 29 August 2003 19:04 To: Tomcat Users List Cc: Stuart MacPherson Subject: Re: First Servlet 404 error Windows somehow change WEB-INF to Web-inf automatically. I could not use WEB-INF. Jim - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: First Servlet 404 error
Tomcat can usually find JSPs very easily. Is welcome.jsp also in
CATALINA_HOME/webapps/onjava/ ? Try the following:
private String target = "welcome.jsp";
If 'onjava' is your namespace then this might work.
-Original Message-
From: Jim Si [mailto:[EMAIL PROTECTED]
Sent: 29 August 2003 19:04
To: Tomcat Users List
Cc: Stuart MacPherson
Subject: Re: First Servlet 404 error
Thank you Stuart for your great help.
HellowWorld servlet works! But I still have one problem.
I got login.jsp in the webapps\onjava directory. It has
In login.java, it has
private String target = "/welcome.jsp";
...
// Forward the request to the target named
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher(target);
dispatcher.forward(request, response);
In welcome.jsp, it has very simple return statement.
Welcome : <%= request.getAttribute("USER")
In webapps\onjava\Web-inf\web.xml, I have
login
com.onjava.login
login
/servlet
In a browser, I use http://localhost:8080/onjava/login.jsp and I got the
login
screen, then click on submit button. I got the following error.
HTTP Status 404 - /welcome.jsp
description The requested resource (/welcome.jsp) is not available.
Look like it runs the login class, how do I correct this problem? Thank
you.
> Also, make sure your HelloWorld servlet is mapped-in in your webapps
> deployment descriptor. By the way, the folder should be called WEB-INF
not
> web-inf.
>
Windows somehow change WEB-INF to Web-inf automatically. I could not use
WEB-INF.
Jim
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: First Servlet 404 error
Thank you Stuart for your great help.
HellowWorld servlet works! But I still have one problem.
I got login.jsp in the webapps\onjava directory. It has
In login.java, it has
private String target = "/welcome.jsp";
...
// Forward the request to the target named
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher(target);
dispatcher.forward(request, response);
In welcome.jsp, it has very simple return statement.
Welcome : <%= request.getAttribute("USER")
In webapps\onjava\Web-inf\web.xml, I have
login
com.onjava.login
login
/servlet
In a browser, I use http://localhost:8080/onjava/login.jsp and I got the login
screen, then click on submit button. I got the following error.
HTTP Status 404 - /welcome.jsp
description The requested resource (/welcome.jsp) is not available.
Look like it runs the login class, how do I correct this problem? Thank you.
> Also, make sure your HelloWorld servlet is mapped-in in your webapps
> deployment descriptor. By the way, the folder should be called WEB-INF not
> web-inf.
>
Windows somehow change WEB-INF to Web-inf automatically. I could not use
WEB-INF.
Jim
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: First Servlet 404 error
I tried it but it still does not work. I even tried to put a HelloWorld.class file into webapps\onjava\Web-inf\classes directory and use link http:\\localhost:8080\onjava\servlet\HelloWorld I still have the same error. But when I put HelloWorld.class file into webapps\examples\Web-inf\classes, then it works. What it might be the problem? Jim Stuart MacPherson wrote: > In your JSP form change this: > > > .. > > > to this: > > > .. > > > [Note the capitals in POST also] > > -Original Message- > From: Jim Si [mailto:[EMAIL PROTECTED] > Sent: 28 August 2003 21:37 > To: Tomcat Users List > Subject: First Servlet 404 error > > It is difficult to get my first servlet working. I got HTTP Status 404 - > /onjava/servlet/com.onjava.login error. Maybe something I did not get it > right. > Here are the things I have. > > Tomcat 4.1.27 > > In conf/server.xml, I added the following line. >crossContext="true" reloadable="true" > mapperClass="org.apache.catalina.core.StandardContextMapper" > useNaming="true" > debug="0" swallowOutput="false" privileged="false" displayName="On Java > Example" > wrapperClass="org.apache.catalina.core.StandardWrapper" docBase="onjava" > cookies="true" path="/onjava" cachingAllowed="true" > charsetMapperClass="org.apache.catalina.util.CharsetMapper"> > > > In conf/web.xml, I uncomment the invoker mapping, i.e. > > invoker > /servlet/* > > > The I have login.jsp and welcome.jsp file under webapps/onjava directory. > In login.jsp, I have the following code > > .. > > > I have login.java file with package statement on top. > package com.onjava; > I compiled the code and move the login.class file into > webapps/onjava/Web-inf/classes/com/onjava directory. > > In webapps/Web-inf/web.xml file, I have the following line of code. > > > - > - > login > com.onjava.login > > - > login > /servlet/login > > > > I am able to get login.jsp by using http://localhost:8080/onjava/login.jsp. > But > when I submit it I got the HTTP status 404 - > /onjava/servlet/com.onjava.login > error. > > Anything I did wrong? > > Jim > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: First Servlet 404 error
You didn't mention anything about a HelloWorld Servlet before. You have not configured the context of your webapp, and tomcat does not even know it exists. Create a file called onjava.xml and place it in your webapps directory. This should contain something along the lines of: Also, make sure your HelloWorld servlet is mapped-in in your webapps deployment descriptor. By the way, the folder should be called WEB-INF not web-inf. HTH stu -Original Message- From: Jim Si [mailto:[EMAIL PROTECTED] Sent: 29 August 2003 16:57 To: Tomcat Users List; Stuart MacPherson Subject: Re: First Servlet 404 error I tried it but it still does not work. I even tried to put a HelloWorld.class file into webapps\onjava\Web-inf\classes directory and use link http:\\localhost:8080\onjava\servlet\HelloWorld I still have the same error. But when I put HelloWorld.class file into webapps\examples\Web-inf\classes, then it works. What it might be the problem? Jim Stuart MacPherson wrote: > In your JSP form change this: > > > .. > > > to this: > > > .. > > > [Note the capitals in POST also] > > -Original Message- > From: Jim Si [mailto:[EMAIL PROTECTED] > Sent: 28 August 2003 21:37 > To: Tomcat Users List > Subject: First Servlet 404 error > > It is difficult to get my first servlet working. I got HTTP Status 404 - > /onjava/servlet/com.onjava.login error. Maybe something I did not get it > right. > Here are the things I have. > > Tomcat 4.1.27 > > In conf/server.xml, I added the following line. >crossContext="true" reloadable="true" > mapperClass="org.apache.catalina.core.StandardContextMapper" > useNaming="true" > debug="0" swallowOutput="false" privileged="false" displayName="On Java > Example" > wrapperClass="org.apache.catalina.core.StandardWrapper" docBase="onjava" > cookies="true" path="/onjava" cachingAllowed="true" > charsetMapperClass="org.apache.catalina.util.CharsetMapper"> > > > In conf/web.xml, I uncomment the invoker mapping, i.e. > > invoker > /servlet/* > > > The I have login.jsp and welcome.jsp file under webapps/onjava directory. > In login.jsp, I have the following code > > .. > > > I have login.java file with package statement on top. > package com.onjava; > I compiled the code and move the login.class file into > webapps/onjava/Web-inf/classes/com/onjava directory. > > In webapps/Web-inf/web.xml file, I have the following line of code. > > > - > - > login > com.onjava.login > > - > login > /servlet/login > > > > I am able to get login.jsp by using http://localhost:8080/onjava/login.jsp. > But > when I submit it I got the HTTP status 404 - > /onjava/servlet/com.onjava.login > error. > > Anything I did wrong? > > Jim > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: First Servlet 404 error
What is the common practise? Jeff Tulley wrote: > It looks like you want your form action to actually be servlet/login, or > maybe /onjava/servlet/login (you can use > <%=request.getContextPath()%>/servlet/login in the jsp if you don't want > to hardcode your context name). > You have set up the mapping of /servlet/login in your web.xml, not > /servlet/com.onjava.login That name is only known internally since it > does not have its own servlet-mapping. > > Jeff Tulley ([EMAIL PROTECTED]) > (801)861-5322 > Novell, Inc., The Leading Provider of Net Business Solutions > http://www.novell.com > > >>> [EMAIL PROTECTED] 8/28/03 2:36:33 PM >>> > It is difficult to get my first servlet working. I got HTTP Status 404 > - > /onjava/servlet/com.onjava.login error. Maybe something I did not get > it right. > Here are the things I have. > > Tomcat 4.1.27 > > In conf/server.xml, I added the following line. >crossContext="true" reloadable="true" > mapperClass="org.apache.catalina.core.StandardContextMapper" > useNaming="true" > debug="0" swallowOutput="false" privileged="false" displayName="On Java > Example" > wrapperClass="org.apache.catalina.core.StandardWrapper" > docBase="onjava" > cookies="true" path="/onjava" cachingAllowed="true" > charsetMapperClass="org.apache.catalina.util.CharsetMapper"> > > > In conf/web.xml, I uncomment the invoker mapping, i.e. > > invoker > /servlet/* > > > The I have login.jsp and welcome.jsp file under webapps/onjava > directory. > In login.jsp, I have the following code > action="servlet/com.onjava.login"> > .. > > > I have login.java file with package statement on top. > package com.onjava; > I compiled the code and move the login.class file into > webapps/onjava/Web-inf/classes/com/onjava directory. > > In webapps/Web-inf/web.xml file, I have the following line of code. > > > - > - > login > com.onjava.login > > - > login > /servlet/login > > > > I am able to get login.jsp by using > http://localhost:8080/onjava/login.jsp. But > when I submit it I got the HTTP status 404 - > /onjava/servlet/com.onjava.login > error. > > Anything I did wrong? > > Jim > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: First Servlet 404 error
It looks like you want your form action to actually be servlet/login, or maybe /onjava/servlet/login (you can use <%=request.getContextPath()%>/servlet/login in the jsp if you don't want to hardcode your context name). You have set up the mapping of /servlet/login in your web.xml, not /servlet/com.onjava.login That name is only known internally since it does not have its own servlet-mapping. Jeff Tulley ([EMAIL PROTECTED]) (801)861-5322 Novell, Inc., The Leading Provider of Net Business Solutions http://www.novell.com >>> [EMAIL PROTECTED] 8/28/03 2:36:33 PM >>> It is difficult to get my first servlet working. I got HTTP Status 404 - /onjava/servlet/com.onjava.login error. Maybe something I did not get it right. Here are the things I have. Tomcat 4.1.27 In conf/server.xml, I added the following line. In conf/web.xml, I uncomment the invoker mapping, i.e. invoker /servlet/* The I have login.jsp and welcome.jsp file under webapps/onjava directory. In login.jsp, I have the following code .. I have login.java file with package statement on top. package com.onjava; I compiled the code and move the login.class file into webapps/onjava/Web-inf/classes/com/onjava directory. In webapps/Web-inf/web.xml file, I have the following line of code. - - login com.onjava.login - login /servlet/login I am able to get login.jsp by using http://localhost:8080/onjava/login.jsp. But when I submit it I got the HTTP status 404 - /onjava/servlet/com.onjava.login error. Anything I did wrong? Jim - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: First Servlet 404 error
In your JSP form change this: .. to this: .. [Note the capitals in POST also] -Original Message- From: Jim Si [mailto:[EMAIL PROTECTED] Sent: 28 August 2003 21:37 To: Tomcat Users List Subject: First Servlet 404 error It is difficult to get my first servlet working. I got HTTP Status 404 - /onjava/servlet/com.onjava.login error. Maybe something I did not get it right. Here are the things I have. Tomcat 4.1.27 In conf/server.xml, I added the following line. In conf/web.xml, I uncomment the invoker mapping, i.e. invoker /servlet/* The I have login.jsp and welcome.jsp file under webapps/onjava directory. In login.jsp, I have the following code .. I have login.java file with package statement on top. package com.onjava; I compiled the code and move the login.class file into webapps/onjava/Web-inf/classes/com/onjava directory. In webapps/Web-inf/web.xml file, I have the following line of code. - - login com.onjava.login - login /servlet/login I am able to get login.jsp by using http://localhost:8080/onjava/login.jsp. But when I submit it I got the HTTP status 404 - /onjava/servlet/com.onjava.login error. Anything I did wrong? Jim - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
