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From "Micael Padraig Og mac Grene" <caraun...@harbornet.com>
Subject Re: TC 4.0 newbie - servlet app won't run (correction)
Date Mon, 26 Nov 2001 19:38:21 GMT
Mark.  I personally work on my sites at a distance, so I am presently ftping
the webapps/examples to have a look at them.  Micael
-----Original Message-----
From: Mark <markd@bellsouth.net>
To: Tomcat Users List <tomcat-user@jakarta.apache.org>
Date: Monday, November 26, 2001 10:15 AM
Subject: Re: TC 4.0 newbie - servlet app won't run (correction)


>Correction, using POST results in a 405-Resource not allowed due to the
>HelloWorldExample servlet not implementing doPost().  Others do and work
>fine with POST. My apologies.
>
>
>At 01:02 PM 11/26/2001 -0500, you wrote:
>>The examples you mentioned are the JSPs examples. I realize JSPs compile
to
>>servlets, but what about the straight up HelloWorldExample servlet?  I
>>didn't see mapping for that or the other servlet (vs. JSP) examples in the
>>web.xml.  Being a newbie, I could very well be missing something so please
>>bear with me (again).
>>
>>BTW - I've fiddled with the example servlet index.html to use FORM vs.
>>"href=../servlet/abc" method of running servlets.  POST always results in
a
>>404.  GET does however work.
>>
>>Example:
>>
>>   <FORM ACTION="../servlet/HelloWorldExample" method="POST">  - doen't
work
>>   <FORM ACTION="../servlet/HelloWorldExample" method="GET">   - works.
>>
>>Mark
>>
>>
>>
>>At 09:30 AM 11/26/2001 -0800, you wrote:
>>>Okay, Mark, Part II, I want to make sure we are communicating properly
>>>before going further.  No sense wasting time.  Your note is not correct
>>>about at least somethings -- for example (no pun intended):
>>>
>>>The web.xml for examples/WEB-INF/web.xml DOES have servlet mappings.  So,
I
>>>am not sure what you are looking at.  The servlet SnoopServlet has the
>>>mappings to the patterns /snoop and *.snp under the name "snoop".  The
>>>servlet servletToJsp which has the same name, i.e. "servletToJsp," has a
>>>mapping to the pattern /servletToJsp.
>>>
>>>Micael
>>>
>>>
>>>-----Original Message-----
>>>From: Mark <markd@bellsouth.net>
>>>To: Tomcat Users List <tomcat-user@jakarta.apache.org>
>>>Date: Monday, November 26, 2001 7:00 AM
>>>Subject: Re: TC 4.0 newbie - servlet app won't run
>>>
>>>
>>>>Thanks for your reply Scott, and thanks to your and Micael's responses I
>>>>_believe_ I understand the relationship between the servlet
naming/mapping
>>>>and the associated html.  As Micael noted, one could put "pudding" in
the
>>>>url-pattern as long as the html was setup as ACTION="pudding".  But...
how
>>>>do the example servlets work when they don't seem to have any servlet
>>>>mapping in the ..\examples\WEB-INF\web.xml?
>>>>
>>>>Even after all the advice, I *STILL* can't get my app to run - I still
get
>>>>a 404 error on the servlet. This seems like such a simple issue but I
can
>>>>NOT get past it.  I've even gone as far as downloading Tomcat 3.3, with
the
>>>>same result. Again, I know Tomcat is parsing my web.xml, because if I
>>>>intentionally make a typo, the parser complains when Tomcat is started.
>>>>
>>>>To recap where I am:
>>>>
>>>>(a)  I have myservlet.class in the
>>>>$CATALINA_HOME\webapps\myapp\WEB-INF\classes
>>>>     directory.  The servlet has no associated package.
>>>>(b)  The html is <FORM ACTION="/servlet/myservlet" method="POST">
>>>>(c)  My $CATALINA_HOME\webapps\myapp\WEB-INF\web.xml is as follows:
>>>>
>>>>     <?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>
>>>>         <servlet>
>>>>             <servlet-name>myservlet</servlet-name>
>>>>             <servlet-class>myservlet</servlet-class>
>>>>         </servlet>
>>>>         <servlet-mapping>
>>>>             <servlet-name>myservlet</servlet-name>
>>>>             <url-pattern>/servlet/myservlet</url-pattern>
>>>>         </servlet-mapping>
>>>>     </web-app>
>>>>
>>>>
>>>>Am I still missing something?  This is driving me berserk...
>>>>
>>>>TIA. Mark.
>>>>
>>>>
>>>>
>>>>At 12:22 AM 11/22/2001 -0500, you wrote:
>>>>>Mark,
>>>>>
>>>>>The servlet tag is used to assign a name to a particular servlet class
>>>>>file.
>>>>>
>>>>> <servlet>
>>>>>           <servlet-name>myservlet</servlet-name>
>>>>>           <servlet-class>myservlet</servlet-class>
>>>>>       </servlet>
>>>>>
>>>>>This would attempt to assign the name 'myservlet' to the class
>>>>>'myservlet.class.'
>>>>>
>>>>>The servlet-mapping tag defines the pattern or 'location' of a named
>>>>>servlet from the root of your context. This means that ....
>>>>>
>>>>><servlet-mapping>
>>>>>           <servlet-name>myservlet</servlet-name>
>>>>>           <url-pattern>/classes</url-pattern>
>>>>>       </servlet-mapping>
>>>>>
>>>>>if this were the ROOT context, this would map your servlet at /classes
>>>>>and your form action would need to be defined as
>>>>>
>>>>><FORM ACTION="/classes" method="POST">
>>>>>
>>>>>A more common mapping for servlets is
>>>>>
>>>>><servlet-mapping>
>>>>>           <servlet-name>myservlet</servlet-name>
>>>>>           <url-pattern>/servlet/myservlet</url-pattern>
>>>>>       </servlet-mapping>
>>>>>
>>>>>which would have a coresponding form tag of
>>>>>
>>>>><FORM ACTION="/servlet/myservlet" method="POST">
>>>>>
>>>>>
>>>>>~Scott
>>>>>
>>>>>Mark wrote:
>>>>>
>>>>>>I installed Tomcat 4.0.1 under Win 2k using JDK 1.3 and able to run
the
>>>>>>example servlets, but not my own.  My html displays and I can execute
my
>>>>>>JSPs, but a POST to a servlet does not work (this app has run under
Forte
>>>>>>and VA Java in the past).   I get a 404 error with "the requested
>>>resource
>>>>>>(/myservlet) is not available". Since the examples work, I have to
assume
>>>>>>it's something in my configuration. Any help figuring out why the
servlet
>>>>>>won't run would be *greatly* appreciated.  I suspect it's something
>>>>>>simple/braindead on my part.
>>>>>>
>>>>>>
>>>>>>o  My directory structure for the app:
>>>>>>   TomcatHome
>>>>>>        |
>>>>>>        +--webapps
>>>>>>              |
>>>>>>              +--myapp\.jsp, .html .gif
>>>>>>                 |
>>>>>>                 +--WEB-INF\web.xml
>>>>>>                       |
>>>>>>                       +--classes\.class files
>>>>>>
>>>>>>
>>>>>>o  My html POST stmt. I've tried various path prefixes to myservlet,
eg
>>>>
>>>>>>   "classes/myservlet".  As with the Tomcat examples, this servlet
has
no
>>>>>>   package:
>>>>>>
>>>>>>    <FORM ACTION="/myservlet" method="POST">
>>>>>>
>>>>>>
>>>>>>o  My web.xml - I know Tomcat's seeing/parsing this because if I
>>>>deliberately
>>>>>>   make a typo I get an error upon startup:
>>>>>>
>>>>>>     <?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>
>>>>>>       <!-- Define servlets that are included in the application
-->
>>>>>>       <servlet>
>>>>>>           <servlet-name>myservlet</servlet-name>
>>>>>>           <servlet-class>myservlet</servlet-class>
>>>>>>       </servlet>
>>>>>>       <servlet-mapping>
>>>>>>           <servlet-name>myservlet</servlet-name>
>>>>>>           <url-pattern>/classes</url-pattern>
>>>>>>       </servlet-mapping>
>>>>>>    </web-app>
>>>>>>
>>>>>>
>>>>>>o  Update to server.xml
>>>>>>
>>>>>>   <Context path="/myapp" docBase="myapp" debug="0">
>>>>>>       <Logger className="org.apache.catalina.logger.FileLogger"
>>>>>>               prefix="myapp_log." suffix=".txt"
>>>>>>               timestamp="true"/>
>>>>>>   </Context>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
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>>>>>
>>>>
>>>>
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>>>
>>>
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>
>
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