Auto-discovery for TLD files in WEB-INF

The auto-discovery mechanism in JSP 1.2 can scan through the WEB-INF directory structure for files with .tld exntension and find all <uri> definitions in them, so we can use a symbolic name to map to the actual location of the tld file by using:
<%@ taglib prefix="test" uri="mytaglib" %>
in a JSP page.
My colleague and I did not have luck in making this work. I got the following error message:
"500 Internal Server Error
OracleJSP: oracle.jsp.parse.JspParseException: Line # 1, <%@ taglib prefix="test" uri="kltaglib" %>
Error: java.io.FileNotFoundException: C:\oc4j\j2ee\home\applications\myapp\myapp-web\mytaglib (The system cannot find the file specified) "
The symbolic name was not recognized. Is this a limitation in OC4J? Has anyone make this work? However, another way of auto-discovery by META-INF in JAR files works for me.
Thanks.

Similar Messages

How do I read a properties file in WEB-INF without hard-coding a path?

Hello,
How do I read a properties file in WEB-INF without hard-coding a path?
I tried:
Properties properties = new Properties();
properties.load(new FileInputStream("db.properties"));
driver = properties.getProperty("driver");
but it cannot find the db.properties file.
Thanks for the help.
Frank

Don't use a File to read those properties.
Better to use the servlet context and
getResourceAsStream() method to get the InputStream.
It'll look for any file in the CLASSPATH. If you put
that properties file in the WEB-INF/classes directory
you'll have no problems, even if you deploy with a
WAR file.Completely agree with this approach. Just have to mention the following for completeness
according to the API,
"This method is different from java.lang.Class.getResourceAsStream, which uses a class loader. This method allows servlet containers to make a resource available to a servlet from any location, without using a class loader. "
So using this method, the resource can be anywhere under your web context, not just in the classpath.
Cheers,
evnafets

Log4J - reading properties file from /WEB-INF directory issue..

I'm just learning to implement Log4J; the approach I am taking for my JSF application running under Tomcat 5.5x is to create an initialization servlet to initialize the logger, and then access the logger instance within my backing beans and application module services. I include log4j.jar file in /WEB-INF/lib and log4j.properties in /WEB-INF.
First I wanted to see if this was a good approach, and secondly I'm having trouble accessing the log4j.properties file from the /WEB-INF directory (see below) - any suggestions on how to set up the path so that the properties file can be found (I receive a java.io.filenotfoundexception)?
Where I'm looking for direction is how to define a single instance of the logger and then access that instance from my java classes versus re-creating the logger in each class.
----- web.xml --------
<servlet>
<servlet-name>LogServlet</servlet-name>
<servlet-class>com.sidehire.view.util.LogServlet</servlet-class>
<init-param>
<param-name>setup</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
------ LogServlet class ------
public void init()
throws ServletException {
String config = getInitParameter("setup");
PropertyConfigurator.configure(config);
Thanks
Message was edited by:
javaX

Try to put the log4j.properties in your WEB-INF/classes/ directory.
You could wrap one log4j instance in a static method in a utility class, but then you would probably lose other information depending on your logger configuration.
If you create an instance in each class, which after all is just one line like this:
static Logger logger = Logger.getLogger(ChangePasswrdAction.class.getName());
then you are able to get time and method information.

PLEASE HELP. How do you access properties files in WEB-INF and classes directory

We have a war file that needs to access properties files that are in the WEB-INF directory
of the war file. We also need to load one of the properties files from the classpath.
However, when we deploy the application ( an ear which inlcludes an ejbjar and a
war and the libraries both the ejbjar (with a manifest setting the classpath ) and
war need ) the properties don't get extracted.
In some of our servlets we are trying to access those files with the path "WEB-INF/foo.properties"
and we get a FileNotFoundException. Then we check and see that NO properties files
have been extracted into their appropriate places ( not even those we throw into
the WEB-INF/classes directory ).
PLEASE HELP,
Christian Hargraves

The file doesn't have to be extracted from the war. For example, you can place
test.properties into your app WEB-INF and write a simple JSP to see how it
works:
<%
InputStream in = application.getResourceAsStream("/WEB-INF/test.properties");
%>
It will return you a zip inputstream if you deployed your application as a .war.
Christian Hargraves <[email protected]> wrote:
I try this, but I get a NullPointerException. The file never actually gets extracted
from the war. Under tomcat and resin this works great ( that's why I am having all
of the trouble i am having ), but there are absolutely no properties files in the
extracted directories for WebLogic deploys. only:
WEB-INF/some_tmp_dir/WEB-INF/lib
and then some dynamically generated jor file with all of the classes that would normally
go in WEB-INF/classes ( all except the properties, of course, which are no where
to be found. ).
There has to be some kind of setting I am missing. Please don't make me seperate
these properties files from the war/ear and then put the path to these properties
files in the CLASSPATH, changing one step to three steps to deploy!!
I have found a documented bug where you can't even put the properties files in a
jar file and that bug will never be fixed for WebLogic 6.1.
"Dimitri I. Rakitine" <[email protected]> wrote:
To access files in WEB-INF you can use ServletContext.getResourceXXX("/WEB-INF/filename")
Christian Hargraves <[email protected]> wrote:
We have a war file that needs to access properties files that are in theWEB-INF directory
of the war file. We also need to load one of the properties files fromthe classpath.
However, when we deploy the application ( an ear which inlcludes an ejbjarand a
war and the libraries both the ejbjar (with a manifest setting the classpath) and
war need ) the properties don't get extracted.
In some of our servlets we are trying to access those files with the path"WEB-INF/foo.properties"
and we get a FileNotFoundException. Then we check and see that NO propertiesfiles
have been extracted into their appropriate places ( not even those wethrow into
the WEB-INF/classes directory ).
PLEASE HELP,
Christian Hargraves--
Dimitri
Dimitri

Re: Recognizing JAR files in WEB-INF/lib

Steven Vetzal wrote:
I am attempting to open existing web projects in NitroX and am beingplagued with:
The class "com.someone.Class" is not in the application class path
The classes are contained in JAR files in WEB-INF/lib.
I have been looking for a way to add these JAR files to the classpath.
There is no builder registered, so I'm not sure I can even get there
from here :)
Don't you love it when people answer their own questions?
Here's what I did:
Add the following sections to the .project file-
Under BuildSpec:
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
Under natures:
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>com.m7.nitrox.webProjectNature</nature>
This fixed up all my classpath issues - after I modified the Java
classpath of course... For example, my .classpath file looks like:
<classpathentry kind="src" path="WEB-INF/classes"/>
<classpathentry kind="lib" path="WEB-INF/lib/cms-bindings-3.0.2.jar"/>
<classpathentry kind="con" path="J2ee.runtime.m7"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="lib" path="WEB-INF/lib/cms-ejb-2.4.0.jar"/>
<classpathentry kind="lib" path="WEB-INF/lib/jstl.jar"/>
<classpathentry kind="lib" path="WEB-INF/lib/standard.jar"/>
<classpathentry kind="output" path="WEB-INF/classes"/>
I found that by examining these files from other projects (like from the
web project wizard) it was easy to find out what my broken project was
missing.
Hopefully this will help someone else one day :)
Steve

Hi Steven,
Sorry for the late response, next time you can do this in a more simple way
by launching Properties window (right click on project) and select Java
Build Path, click on Libraries tab.
Thanks
M7 Support
"Steven Vetzal" <[email protected]> wrote in message
news:[email protected]..
Steven Vetzal wrote:I am attempting to open existing web projects in NitroX and am being
plagued with:
The class "com.someone.Class" is not in the application class path
The classes are contained in JAR files in WEB-INF/lib.
I have been looking for a way to add these JAR files to the classpath.
There is no builder registered, so I'm not sure I can even get there from
here :)
Don't you love it when people answer their own questions?
Here's what I did:
Add the following sections to the .project file-
Under BuildSpec:
buildCommand
name>org.eclipse.jdt.core.javabuilder</name
arguments
/arguments
/buildCommand
Under natures:
nature>org.eclipse.jdt.core.javanature</nature
nature>com.m7.nitrox.webProjectNature</nature
This fixed up all my classpath issues - after I modified the Java
classpath of course... For example, my .classpath file looks like:
classpathentry kind="src" path="WEB-INF/classes"/
classpathentry kind="lib" path="WEB-INF/lib/cms-bindings-3.0.2.jar"/
classpathentry kind="con" path="J2ee.runtime.m7"/
classpathentry kind="con"
path="org.eclipse.jdt.launching.JRE_CONTAINER"/
classpathentry kind="lib" path="WEB-INF/lib/cms-ejb-2.4.0.jar"/
classpathentry kind="lib" path="WEB-INF/lib/jstl.jar"/
classpathentry kind="lib" path="WEB-INF/lib/standard.jar"/
classpathentry kind="output" path="WEB-INF/classes"/
I found that by examining these files from other projects (like from the
web project wizard) it was easy to find out what my broken project was
missing.
Hopefully this will help someone else one day :)
Steve

Tomcat6 does not load class files from WEB-INF/lib/myjarfile.jar WHY???

I have placed my jar file in c:\tomcat6\webapps\my-application\WEB-INF\lib\myjarfile.jar
But, after restarting tomcat6, when i try to import the class file contained in the myjarfile.jar in a servlet, it says
ProcessFileUpload.java:4: package test.test1 does not exist
import test.test1.*;
^It clearly tomcat's class loading problem.
As i unzipped my jar and placed the packagefolder structure to
c:\tomcat6\webapps\my-application\WEB-INF\classes\testand it works perfectly.
Anyone knows its workaround? please suggest if any configuration changes is required in tomcat or so.
Thanks.
---Sujoy

Thank you gimbal2 . There was error in creating the jar file myjarfile.jar.
But, now I have created it again and placed it in place
c:\tomcat6\webapps\my-application\WEB-INF\lib\myjarfile.jarand tried to use one on the Class file included within the jar to compile my servlet. But, still I am getting error at servlet compilation time. I want to place executable jar files in
c:\tomcat6\webapps\my-application\WEB-INF\lib\myjarfile.jar and compile my servlet and execute the servlet.
I DO NOT WANT TO unzip the jar, placing all unzipped files to
c:\tomcat6\webapps\my-application\WEB-INF\classes\ folder and comiple my servlet and execute the servlet. But, I am failing to user WEB-INF\lib\ folder facility....please help me why i am not getting class files from WEB-INF\lib\ folder.
If you please see the small code bit and tell me any possible error that would be very helpful.
Step 1: my library java file MyClass.java
package test.test1;
public class MyClass {
     String myName = "Default return string value";
     public void setMyName(String varName) {
          this.myName = varName;
     public String getMyName() {
          return this.myName;
}Step2 : Creating jar file of my library class files
C:\jdk1.6\bin>jar cvf myjarfile.jar test
added manifest
adding: test/(in = 0) (out= 0)(stored 0%)
adding: test/test1/(in = 0) (out= 0)(stored 0%)
adding: test/test1/MyClass.class(in = 452) (out= 296)(deflated 34%)
adding: test/test1/MyClass.java(in = 230) (out= 140)(deflated 39%)
C:\jdk1.6\bin>Step3 : Double checking the created jar file content by listing its content
C:\jdk1.6\bin>jar tf myjarfile.jar
META-INF/
META-INF/MANIFEST.MF
test/
test/test1/
test/test1/MyClass.class
test/test1/MyClass.java
C:\jdk1.6\bin>Step4 : Placed myjarfile.jar to
c:\tomcat6\webapps\my-application\WEB-INF\lib\Step5 : Restarted standalone Tomcat6 in my Windows XP SP2.
Step6 : Created a simple servlet LibFolderTest.java within my-application\WEB-INF\classes\ folder with code
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import test.test1.*;
public class LibFolderTest extends HttpServlet {
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          response.setContentType("text/html");
          PrintWriter out = response.getWriter();
          MyClass mc = new MyClass();
          out.println(mc.getMyName());
}Step7 : Tried to compile my servlet LibFolderTest.java and got the following error
LibFolderTest.java:4: package test.test1 does not exist
import test.test1.*;
^
LibFolderTest.java:11: cannot find symbol
symbol : class MyClass
location: class LibFolderTest
                MyClass mc = new MyClass();
                ^
LibFolderTest.java:11: cannot find symbol
symbol : class MyClass
location: class LibFolderTest
                MyClass mc = new MyClass();
                                 ^
3 errorsThe above servlet compilation error on Step7 is telling me that myjarfile.jar is not loaded by Tomcat6 or not available for use when compiling servlet. I want to use myjarfile.jar from within WEB-INF\lib\ folder but I can not. please help.
---Sujoy

JAR files under WEB-INF but not in lib directory

I am working with JDeveloper 10g and I have several jar files under WEB-INF/lib and other under WEB-INF/libEst.
I have add this libraries to Project properties > Paths and it works fine when I run my aplication in local environment, but it fails when I deploy and run in the server.
I have configured our deploy file to include these WEB-INF/libEst jar files, but when I deploy to our server, it seems to be that this classes included in these jar files are not reachable and they cannot be loaded and throw a ClassNotFoundException.
Is it possible to have jar files under any WEB-INF subdirectory distinct of /lib?
Why is it working in local but not in server?
If someone can help me to configure this in order to deploy in server, I will be very grateful.
Thanks a lot,
Antonio.

Hi Antonio,
I think this document is what you are looking for: http://www.oracle.com/technology/tech/java/oc4j/htdocs/how-to-servlet-warmanifest.html
.. your manifest entries would look like
Class-Path: WEB-INF/libExt/<jarName1>.jar, WEB-INF/libExt/<jarName2>.jar, ...
Let me know if this works for you.
thanks,
Harsha

How can I read a file in WEB-INF?

I have a file under WEB-INF/classes/properties that I want a webapp to be able to read. I'm doing
BufferedReader in = new BufferedReader(new InputStreamReader(fin));But I don't know what to set "fin" to.

ner0 wrote:
I'm not using a servlet. I ended up just doing creating a Properties class and doing a load using ClassName.class.getResourceAsStream("/properties/"+filename) and creating key value pairs inside the property file read from the properties class. I had a suggestion against me doing this so I was trying to find another way, but since this works I'll just use it.That's exactly what evnafets second suggestion does.
I mentioned the static error because I was wondering if there was a static way to do it since all this is being done within a synchronized static method.You should know that the 'this' reference is unknown in a static context, simply because there is no instance of the current object.

Jar file in web-inf\lib is not being loaded - weblogic 7.0

I am callling a webservice from a jsp. everything works fine if I keep the interface
classes under web-inf\classes....but If I put the interface classes in a jar file
and put it under web-inf\lib, then weblogic does not seem to find that....
I am getting following error :
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):14:
class CustomerValue is public, should be declared in a file named CustomerValue.java
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):119:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):120:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):121:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
4 errors
Wondering if it is a bug...?
any thoughts ?
-Girish Bhatia

I wrote up a simple test case for this and it works fine for me.
I suppose there are diffences. ;)
I am using:
WebLogic Server 7.0 SP1 Mon Sep 9 22:46:58 PDT 2002 206753
Take the attached zip, unzip.
cd to directory
ant build
then deploy it via the console, or
java weblogic.Deployer -adminurl t3://127.0.0.1:7001 -user weblogic -password
weblogic -activate -name mywebapp2 -source e:/weblogic/dev/sandbox/griffith/apps/output/exploded_mywebapp_lib/
Then:
http://c863775-d:7001/exploded_mywebapp_lib/frobber
works for me. My servlet implments an interface in the jar in my lib dir.
Cheers
mbg
"Girish" <[email protected]> wrote:
>
I am callling a webservice from a jsp. everything works fine if I keep
the interface
classes under web-inf\classes....but If I put the interface classes in
a jar file
and put it under web-inf\lib, then weblogic does not seem to find that....
I am getting following error :
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):14:
class CustomerValue is public, should be declared in a file named CustomerValue.java
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):119:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):120:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
C:\bea\user_projects\mydomain\.\myserver\.wlnotdelete\_appsdir_omccs_example_war_omccs_example_4653011\jarfiles\WEB-INF\lib\Customer_client32432.jar(com/qwest/omccsexample/ejb/CustomerBean/CustomerValue.java):121:
cannot resolve symbol
symbol : class RuntimeUtils
location: package binding
(source unavailable)
4 errors
Wondering if it is a bug...?
any thoughts ?
-Girish Bhatia
[mywebapptest.zip]

Compiling class file to WEB-INF/classes

I have created 2 source files, viz: DatabaseConnectionBean.java and Agent.java. They both exist in the source directory. In the DatabaseConnectionBean.java I instantiate the Agent.class. When I compile at the Command prompt ... I type javac -d ..\WEB-INF\classes\ Agent.java ... it compiles fine. But when I compile the DatabaseConnectionBean.java by typing javac -d ..\WEB-INF\classes\ DatabaseConnectionBean.java it throws an error.....it cannot resolve symbol 'Agent'.
I have included the package name, viz: smeyl, in both files.
A strange thing happens when I type: javac -d ..\WEB-INF\classes\ *.java; at the command prompt...It doesn't throw an error....it compiles both source files....still though my jsp doesn't work properly..so this isn't a solution.
Please help.
any help will be appreciated....
luv
ushanta

I'm not to sure myself. I've been using eclipse too long to remember all the intracacies of command line stuff. I know the theory, but am out of practice. :-)
If you compile DatabaseConnectionBean on its own, I don't think it looks in the destination directory for supporting classes unless you tell it to:
something like this
javac -d ..\WEB-INF\classes\ -classpath ..\WEB-INF\classes\;%CLASSPATH% DatabaseConnectionBean.java
If I'm talking complete rubbish here, someone will kindly (or unkindly for that matter) correct me I am sure

Weblogic Server not picking the jar files in WEB-INF/lib folder

we are facing a strange problem where Weblogic App Server is not picking the jar files present inside the WEB-INF/lib folder if we update the jar file path in the classpath of the start script then the classes get loaded properly.
Is there any specific setting which I need to do in weblogic to pick these jars ?

Class loaders associated with a Web application can be configured to locate local classes first. To enable this we have to set the <prefer-web-inf-classes> to true in the deployment override weblogic.xml, for example
<container-descriptor>
<prefer-web-inf-classes>true</prefer-web-inf-classes>
</container-descriptor>
http://blog.transfer-solutions.com/2010/12/weblogic-class-loading/

How to package .tld files into MATA-INF folder with jar?

I noticed that tag lib jar file contains *.tld under its META-INF folder. Justwonder how to implement this with command jar? Thank you!

I have discovered how to get it to work, but I'm not sure what the problem is. I can consistently duplicate it.
If I manually copy a file into the myapp\src folder, the file does not get copied to the bin-debug folder and, thus does not get added to the list of files to include. I build my app dozens of times. This file NEVER appears in the file list under the src folder in the Package Explorer View. Even if I close Flash Builder and open it again, my added file NEVER appears in the file list.
Only if I right click on my project in the Package Explorer View and select Refresh, will the file appear in the list. Then and only then, when I go through the Export process, the file will appear in the list and be included in the AIR package.
That seems like a bug to me. Even if you said it wouldn't detect the file being added while Flash Builder is open, it should at least check the project folder when I open it and update the list with any new files.
I'd still like to know how to get this to work without manually refreshing the project although admittedly I won't be adding files to the project often.
The "Copy non-embedded files to output folder" option is something good to know. I initially unchecked it and saved and rechecked it, just to be sure it was set.

Isp file under WEB-INF call css file and jasript file

Hi , is that OK to call a jascript file or css file if the jsp file is under WEB-INF? How to do that?

You have to remember that all client side requests will be of 2 types: relative or absolute. If you refer to the file using the absolute URL of the resource (like http://www.my.com/application/resources/content.css) then you will have no problem.
If you use a relative URL, the URL has to be relative to the address that the client sees on the browser. The JSP may be in the WEB-INF directory, but the client doesn't see that. They put in a URL like http://www.my.com/application/process and the server included/forwarded to the WEB-INF content which the client doesn't see or know about. So when you use a relative URL, the URL has to be relative to http://www.my.com/application/process and not to http://www.my.com/application/WEB-INF/<...>/display.jsp where the JSP actually lives.

Moving files in WEB-INF

Hi,
I've made up some JSF pages under my project node.
Right now I'd like to put all of them except login in a resticted subidir, in order to have a servlet filter mapped to restricted items.
How can I do the in JDev?
Thanks

Francesco,
you can create the pages in JDeveloper with a leading /WEB-INF/ to store them in the WEB-INF directory. As you noted, it requires a servlet filter to add protection because usual decalarative security doesn't help.
If you want to move the files after the fact, make sure you update all the dependencies and backing bean references. Refactoring doesn't work well in JDeveloper's J2EE preview.
Frank

Read XML file in WEB-INF works in exploded format but fails in EAR

I'm able to read an XML file stored in the WEB-INF when my application is deployed in the exploded format, but when its deployed in an EAR, the reading fails.
          I read from forums that getRealPath could fail, so I added in the getResourceAsStream to fall back on. But in the EAR format, both fails.
          What did I miss out?
          Here's my codes:
                      StringBuffer configFileName = new StringBuffer();
            configFileName.append(File.separatorChar).append("WEB-INF");
            configFileName.append(File.separatorChar).append("app-config.xml");
            String fileName = getServletContext().getRealPath(configFileName.toString());
            if (fileName == null) {
              request.setAttribute("efs/xmlmappings-is", getServletContext().getResourceAsStream(configFileName.toString()));
            } else {
              request.setAttribute("efs/xmlmappings-str", fileName);


Hi          > Thread.currentThread().getContextClassLoader().getReso
          > urceAsStream()
          >
          > getClass().getClassLoader().getResourceAsStream()
          > should also work
          > if the file is in WEB-INF/classes
          >
          > regards
          > deepak
          It works, thanks!

Auto-discovery for TLD files in WEB-INF

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