Lava Saleem wrote:
Hi everyone,
I have a single page html file with java script embadded in it, I have
created a war file for it and deployed it successfully but when I click on
the page I get the below error, the structure of my war file is the
following
webapp --> filename --> WEB-INF--> filename.htm + web.xml + META-INF
+ classes + lib
I did not modify the web.xml since I don't need the servlets do I need to
modify anything?
HTTP status 404
description the requested resource (/filename/)is not available
Hi.
Except the 404 error which your are getting, not much above makes any sense at
all.
So it is better to forget all that, and start new.
You really have to learn to walk before you can run.
First, consider the directory structure of a standard Tomcat installation :
(CATALINA_HOME)
(=CATALINA_BASE)
|
|- bin (tomcat "programs" and scripts)
|- conf (configuration files)
|- lib (global library files)
|- logs (logfiles)
|- webapps (* web applications *)
|- ROOT (the special, top-level, default web application)
|- app1 (a web application)
|- app2 (another web application)
|- ...
|- lastapp (another web application)
In the above, "(CATALINA_HOME)" represents the top directory of your Tomcat installation,
the one under which the rest of Tomcat is found.
For example, on your system it may be "C:\tomcat" or "C:\program files\Apache Software
Foundation\tomcat6.0" or "/usr/share/tomcat6" or "/usr/local/tomcat6" or whatever.
The "webapps" sub-directory is what is important for you now. That is where you will put
"web applications", composed of static html pages (with or without javascript in them),
JSP pages (special html pages with embedded Java code), java servlets (compiled java
applications), etc..
The ROOT web application is special. It is the "default application".
When you use a URL like : http://yourserver.yourcompany.com/abc.html
Tomcat is going to look for "abc.html" under the webapps/ROOT directory.
The other subdirectories under "webapps" are each one separate web application.
To access for example the application named "app1", you will have to use a URL starting
with "http://yourserver.yourcompany.com/app1/....";
For example, if you place a html page named "xyz.html" in the subdirectory
(CATALINA_HOME)/webapps/app1, then the URL to call it up will be
http://yourserver.yourcompany.com/app1/xyz.html
Under such a web application directory like ../webapps/app1, there is also a
structure.
It looks like this :
(CATALINA_HOME)
(=CATALINA_BASE)
|- webapps (* dir, top of all web applications *)
|
|- app1 (dir, contains the web application named "app1")
- public files (html etc..)
- WEB-INF (directory)
|- files (private)
|- web.xml (configuration file for the application)
|- classes (dir.)
|- compiled java classes, like servlets
|- lib (dir)
|- java libraries for this webapp
- META-INF (dir.)
|- context.xml (more settings for the application)
Basically everything under "app1" is optional. Tomcat will supply a default if
needed.
Of course, you will want at least one file under there, to make the execise
meaningful.
What is in the sub-directories WEB-INF and META-INF, can never be obtained directly by a
browser. Tomcat will not allow it.
So if you enter the following URL in the browser :
http://yourserver.yourcompany.com/app1/WEB-INF/something
Tomcat will respond with an error, even if "something" exists.
But to start, I suggest that you just
- stop tomcat
- create a new sub-directory under ../webapps/, for example "myapp".
- under that subdirectory, place a file called "myfile.html"
- verify that the ownership and permissions of these files are such that the Tomcat user
can read them
- start Tomcat
- in the browser, enter the URL :
http://yourserver.yourcompany.com/myapp/myfile.html
and enjoy.
Now play around with the above :
- create another page "mypage2.html", place it alongside "myfile.html", start Tomcat and
call up the new page in the browser.
- then stop Tomcat again, and create another subdirectory under "webapps", put something
there, start Tomcat and call it up with the browser.
- then stop Tomcat again, create a sub-directory "WEB-INF" under one of your webapps, put
something in it, start Tomcat and try to call up that file.
When you understand exactly how that works, then go read this page (again) :
http://tomcat.apache.org/tomcat-6.0-doc/appdev/deployment.html
And then you should come back for more questions about how to make .war files and deploy
them properly.
(tip : a .war file is just a zip file with the same content as the "app1" subdirectory
above. It has to be named "app1.war", and you have to copy it under /webapps/ for Tomcat
to understand what you want).
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