Accessing resources from a WAR file.

Do you guys know how a JSP is supposed to reference resources inside the WAR file? I have some gif files in an images folder at the top root of the WAR directory. I'm tying to access them like n the JSP with -
SRC="./images/update_button.gif"
And it is not working. Any suggestions?
Thanks in advance,
dosteov

Usually "./" at the beginning of a path is unnecessary, since "." means "current directory". Did you mean "../images/update_button.gif" instead?

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               Oliver Matz
          | _ \ / \ | __)( ) Oliver Matz, Engineer
          | _/( () )| __) | | fon: +49(0)40/60990-0
          |_| \__/ |___) |_| fax: +49(0)40/60990-113


Yes you can load a java applet form a jar file.
Here is the code for internet explorer.
<body>
     <table align="center" border="1">
          <tr>
               <td>
                    <object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" width="10" height="10" codebase="/plugin/">
                    <param name="code" value="XXX.class">
                    <param name="archive" value="XXX.jar">
                    </object>
               </td>
          </tr>
     </table>
</body>
</html>
Just replace the XXX.class with the class containing the init() method and XXX.jar with the jar file.

EJB(EAR file) lookup from separate WAR file

Hi
I have 2 applications (EAR and WAR) deployed in an OC4J instance using Oracle 10g. All my EJB components are in my EAR file and all my front-end/servlet component are in the WAR file. My lookup in the servlet fails, like:
05/01/21 13:47:05 javax.naming.NameNotFoundException: SessionEJB not found
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05/01/21 13:47:05 at java.lang.Thread.run(Thread.java:534)
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<ejb-ref>
<ejb-ref-name>SessionEJB</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>com.app.bean.SessionEJBHome</home>
<remote>com.app.bean.SessionEJB</remote>
</ejb-ref>
I've added the "parent" attribute in server.xml, something like:
<application name="myapp" path="../applications/myapp.ear" auto-start="true" />
<application name="myweb" path="../applications/myweb.ear" auto-start="true" parent="myapp" />
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lookup in my servlet:
Context ctx = new InitialContext();
Object objref = ctx.lookup("SessionEJB");
sessionEJBHome = (SessionEJBHome)PortableRemoteObject.narrow(objref, SessionEJBHome.class);
beanRemote = sessionEJBHome.create();
I also tried using the jndi.properties file and by specifying context attributes (PROVIDER_URL,INITIAL_CONTEXT_FACTORY,..) nothing worked.
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Hi Naga,
You have to lookup the ejb as follows:
Object objref = ctx.lookup("java:comp/env/ejb/SessionEJB");
location tag in orion-ejb-jar.xml for the EJB determines where the JNDI-name to which this bean will be bound documented in EJB Guide at http://download-west.oracle.com/docs/cd/B14099_01/web.1012/b15505/dtdxml001.htm#sthref1130
<ejb-ref-mapping ... > in orion-web.xml :
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-Debu

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Hi, we have packeged our application/components as a WAR file, but due to the nature of our application we continuously get new images (related to news articles). We want to keep these images outside the WAR file. Does anyone have any suggestions to how we can do that?Eirik

Usually "./" at the beginning of a path is unnecessary, since "." means "current directory". Did you mean "../images/update_button.gif" instead?

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Currently, I have application classes in a jar file, and all other resources (pictures, properties, and so forth..) in my windows folder. I do not have any problem for using them such way. For example to set an icon to a JFrame I have coded :
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Thanks for all
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Trying to access methods from a .class file by creating instance of class

Hey all,
I'm hoping you can help. I've been given a file "Input.class" with methods such as readInt(), readString(), etc. I have tried creating instances of this class to make use of it, but I receive the error "cannot find symbol : class Input".
If you could help at all, I would greatly appreciate it.
Here's my code. The first is the base program, the second is the driver.
import java.util.*;
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No, I don't know the package name....Is there a way
to import the Input.class by itself without importing
the entire packge?
I tried extending the driver program too...It didn't
work either...
Message was edited by:
BoxMan56How do you know you have a class called Input.class ?
You got a jar file which contains it ? or just a simple .class file ?
You have to set the classpath in either case.
But for the former, you should also need to explicitly telling which package containing the class file you looking for (i.e. Input.class)
e.g. java.util.Vector which is a class called Vector inside java.util package.
You don't have to import the whole package, but you should tell which package this class belongs to.

Help.jsp web app war file (how to exclude resources)

Hi, I am making a jsp/JSF application and now wanted to deploy it on a glassfish server. this is the first time i am deploying so am still learning it as i go.
I wanted to clear out something before i go ahead.
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How difficult would it be for me to to then link the resources folder to the deployed application?
I am running against time. i need to clear the above out to make a decision.

thyscorpion wrote:
My application has tons of resuorce files (mainly huge Picture and videos) which are roughly the size of 1-2 GB. I do not want to add them to my WAR file. is it possible to exclude the resources from the war file?Yes.
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You may find this servlet example useful: [http://balusc.blogspot.com/2007/04/imageservlet.html] (specific for images).

Urgent! War File Issue

Hi! people,
Can anybody please guide me? I want to know if we can read the contents of a
folder in a WAR file.
Here is the scenario:
I have a folder by the name: myFolder in the web-app directory root.
(The folder name/location are fixed).
This folder has an arbitrary number of files.(XML files). (The names are
also arbitrary).
I have to parse all of these files in the init() of a servlet.
What I have already tried:
String str = getServletContext().getRealPath("") ;
This gets me the path to the root folder of the Web Application, and I
read all the files in this folder.
This only works from a web-app deployed from a directory, not from a WAR
file.
For a WAR file web-app, getServletContext().getRealPath("") returns
null.
Please help as soon as possible.
Thanks in advance.

Thanks very much for your reply.
The situation is that I need to read a bunch of XML/XSL files and pre-parse
them for efficiency.
There could be any number of these in the WAR file in a fixed name folder.
The other thing that you brought up is reading the contents of the war file.
How will I know the name/path in which my war file is deployed?
If I cannot know that, how will I open it?
Thanks again.
"Cameron Purdy" <[email protected]> wrote in message
news:[email protected]...
I assume by your question that you will not know the names of the XMLfiles?
For example, all of the XMLs in a typical WAR or JAR or EAR are knownbased
on the spec and the vendor implementation. In the case of WL 5.1, youhave
potentially hundreds of XML files, but their names are either specified by
the standard or the names are referred from XML files whose names are
specified by the standard.
AFAIK If you do not know the name you are looking for, you have no choice
but to open the WAR/JAR/EAR using a zip class (see java.util.jar.JarFile).
Cameron Purdy
http://www.tangosol.com
"Ejb Developer" <[email protected]> wrote in message
news:[email protected]...
Thanks for replying.
getResourceAsStream() lets you read a file - basically provides an
InputStream.
What I want to do is read all of the xml files in a folder inside the
WAR
file.
There could be any number of files, with any name. Can you think of away?
Thanks.....
"Cameron Purdy" <[email protected]> wrote in message
news:[email protected]...
I'm not certain what you are asking, but it is possible to load
resources
from the WAR file. I believe that ServletContext.getResourceAsStreamdoes
that, and I know that I have successfully used the resource loadingmethods
from the class loader itself.
Cameron Purdy
http://www.tangosol.com
"Ejb Developer" <[email protected]> wrote in message
news:[email protected]...
Hi! people,
Can anybody please guide me? I want to know if we can read the
contents
of
a
folder in a WAR file.
Here is the scenario:
I have a folder by the name: myFolder in the web-app directory
root.
(The folder name/location are fixed).
This folder has an arbitrary number of files.(XML files). (Thenames
are
also arbitrary).
I have to parse all of these files in the init() of a servlet.
What I have already tried:
String str = getServletContext().getRealPath("") ;
This gets me the path to the root folder of the Web Application,
and
I
read all the files in this folder.
This only works from a web-app deployed from a directory, not
from
a
WAR
file.
For a WAR file web-app, getServletContext().getRealPath("")
returns
null.
Please help as soon as possible.
Thanks in advance.

Using web resources in a JAR/WAR file in another project

Hi,
I would like to make a core set of .jspx files available to other developers without them having to physically include each of the .jspx files into their JDeveloper projects manually.
I've tried creating various WAR and JAR files, and then including those into my JDeveloper projects (Project Properties > Libraries > Add Jar/Directory) but the result is always the same:
javax.faces.FacesException: Problem in renderResponse: /test.jspx Not Found in ExternalContext as a Resource
In the simplest case, I've created a war file with only a single file in it:
/test.jspx
I've also tried a war with:
/public_html/test.jspx
Can anybody provide some pointers as to what it is I need to do here? Some things I've read suggest that I need to extend the classpath to include my test.war, but I can't find the appropriate setting for this in JDeveloper.
I'm using the latest version of JDeveloper 10g, and for the purposes of testing I'm using the embedded OC4J.
Thanks for any tips!
Alistair.

I haven't done this so far, but it should be possible.
One thing you should have in mind is this:
Every WAR is a separate Web Application and has its own context as well as context root.
If you'd like to reuse pages from another WAR file you need to know its context root at the bare minimum to reference to it.
--olaf

Accessing resources from a WAR file.

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