Re: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
Well, I actually got the properties file loading properly!
When I set undeployWars="false" in server.xml, I can still see my log
messages inside my Tomcat console!
Here's my corrected file (Log4jInitServlet):
import java.io.File;
import java.io.IOException;
import java.util.Properties;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import org.apache.log4j.PropertyConfigurator;
public class Log4jInitServlet extends HttpServlet {
public void init() throws ServletException {
Properties props = new Properties();
// String file = getServletContext().getInitParameter("log4j-init");
// File propFile = new File(file);
// if (!propFile.exists()) {
// System.out.println("log4j.properties file not found" +
propFile.getAbsolutePath());
// }
try {
props.load(this.getClass().getClassLoader().getResourceAsStream("/log4j.properties"));
} catch (IOException e) {
e.printStackTrace();
}
//
PropertyConfigurator.configureAndWatch(propFile.getAbsolutePath(),1);
}
}
Now, my problem is that I can't use the PropertyConfigurator because I
placed log4j.properties in WEB-INF/classes and then just placed it
into my CLASSPATH using getResourceAsStream(). If you look at my code
whihc contains the invocation to PropertyConfigurator, I need a File
type to place as the first parameter inside the configureAndWatch()
method.
Is there a way to convert this stream as File?
Happy holidays!
-JD
On 12/22/06, Hassan Schroeder <[EMAIL PROTECTED]> wrote:
On 12/22/06, James Dekker <[EMAIL PROTECTED]> wrote:
> unpackWARs="true" autoDeploy="true"
>xmlValidation="false" xmlNamespaceAware="false">
>
> tomcat.home=C:/DevTools/tomcat/jakarta-tomcat-5.5.9
> tomcat.deployment.dir=${tomcat.home}/webapps
Most of that was irrelevant :-) but the above doesn't mesh with your
earlier path:
C:\DevTools\tomcat\jakarta-tomcat-5.5.9\mywebapp\WEB-INF\classes\log4j.properties.
:: which doesn't include a 'webapps' directory.
Is that just a typo or are you setting Context atttributes (like docBase)
somewhere else?
--
Hassan Schroeder [EMAIL PROTECTED]
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Re: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
On 12/22/06, James Dekker <[EMAIL PROTECTED]> wrote:
tomcat.home=C:/DevTools/tomcat/jakarta-tomcat-5.5.9
tomcat.deployment.dir=${tomcat.home}/webapps
Most of that was irrelevant :-) but the above doesn't mesh with your
earlier path:
C:\DevTools\tomcat\jakarta-tomcat-5.5.9\mywebapp\WEB-INF\classes\log4j.properties.
:: which doesn't include a 'webapps' directory.
Is that just a typo or are you setting Context atttributes (like docBase)
somewhere else?
--
Hassan Schroeder [EMAIL PROTECTED]
-
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
Hassan:
Thank you for your repsonse...
Here's what I have in my TOMCAT_HOME/conf/server.xml file:
In TOMCAT_HOME/conf/tomcat-users.xml file:
http://${tomcat.server}:8080/manager
tomcat.username=admin
tomcat.password=admin
build.properties:
project.name=mywebapp
build.dir=./build
# Web app properties for the project
webapp.name=mywebapp
webapp.build.dir=${build.dir}/${webapp.name}
webapp.virtual.host=localhost
webapp.meta.dir=${webapp.build.dir}/META-INF
# Tomcat properties
tomcat.home=C:/DevTools/tomcat/jakarta-tomcat-5.5.9
tomcat.deployment.dir=${tomcat.home}/webapps
tomcatTask.properties:
# Tomcat Task Properties
deploy=org.apache.catalina.ant.DeployTask
install=org.apache.catalina.ant.InstallTask
list=org.apache.catalina.ant.ListTask
reload=org.apache.catalina.ant.ReloadTask
remove=org.apache.catalina.ant.RemoveTask
resources=org.apache.catalina.ant.ResourcesTask
roles=org.apache.catalina.ant.RolesTask
start=org.apache.catalina.ant.StartTask
stop=org.apache.catalina.ant.StopTask
undeploy=org.apache.catalina.ant.UndeployTask
Finally, my build.xml file:
Hope this answers your question...
-JD
On 12/22/06, Hassan Schroeder <[EMAIL PROTECTED]> wrote:
On 12/22/06, James Dekker <[EMAIL PROTECTED]> wrote:
From the three lines below:
> ... %CATALINA_HOME%/mywebapp/%WEB-INF/lib
> C:\DevTools\tomcat\jakarta-tomcat-5.5.9\bin\WEB-INF\classes\log4j.properties
>
C:\DevTools\tomcat\jakarta-tomcat-5.5.9\mywebapp\WEB-INF\classes\log4j.properties.
:: I'd bet your basic configuration is wrong. What are your Host appBase
and Context docBase, and where are they being set?
--
Hassan Schroeder [EMAIL PROTECTED]
-
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Re: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
On 12/22/06, James Dekker <[EMAIL PROTECTED]> wrote: From the three lines below: ... %CATALINA_HOME%/mywebapp/%WEB-INF/lib C:\DevTools\tomcat\jakarta-tomcat-5.5.9\bin\WEB-INF\classes\log4j.properties C:\DevTools\tomcat\jakarta-tomcat-5.5.9\mywebapp\WEB-INF\classes\log4j.properties. :: I'd bet your basic configuration is wrong. What are your Host appBase and Context docBase, and where are they being set? -- Hassan Schroeder [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
Dear Chuck Caldarale & Others, Thank you for your response! Chuck - Your e-mail was very informative... I did remove the servlet-apis from my %CATALINA_HOME%/mywebapp/%WEB-INF/lib directory. The only reason I had it there was because I use Eclipse for development and its easier to configure the build path by clicking on "Add Jar" rather than clicking on "Add External Jar". But I took your advice and removed it and now use "Add External Jar". Here's my situation... I changed my Ant build script to move the log4j.properties file into my WEB-INF/classes dir. Also, my log4j-1.2.9.jar gets moved inside my WEB-INF/lib dir. But for some odd reason, when I run Tomcat, it doesn't seem to know where my log4j.properties file is! My Log4jInitServlet seems to have the path wrong! It looks inside: C:\DevTools\tomcat\jakarta-tomcat-5.5.9\bin\WEB-INF\classes\log4j.properties instead of: C:\DevTools\tomcat\jakarta-tomcat-5.5.9\mywebapp\WEB-INF\classes\log4j.properties. Furthermore, it throws a NullPointerException but at the same time, right afterwards, it logs my XmlConfigInitServlet (I have it set there!). Here's what my console says: Dec 22, 2006 9:45:05 AM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive mywebapp.war propFile path is: WEB-INF\classes\log4j.properties log4j.properties not found, C:\DevTools\tomcat\jakarta-tomcat-5.5.9\bin\WEB-INF\classes\log4j.properties 2006-12-22 09:45:07,653 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/mywebapp]] - StandardWrapper.Throwable java.lang.NullPointerException at java.util.Properties$LineReader.readLine(Properties.java:365) at java.util.Properties.load(Properties.java:293) at com.acme.mywebapp.logging.Log4jInitServlet.init(Log4jInitServlet.java:27) at javax.servlet.GenericServlet.init(GenericServlet.java:211) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3857) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4118) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:788) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:677) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:473) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020) at org.apache.catalina.core.StandardHost.start(StandardHost.java:718) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442) at org.apache.catalina.core.StandardService.start(StandardService.java:450) at org.apache.catalina.core.StandardServer.start(StandardServer.java:683) at org.apache.catalina.startup.Catalina.start(Catalina.java:537) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409) 2006-12-22 09:45:07,669 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/mywebapp]] - Servlet /mywebapp threw load() exception java.lang.NullPointerException at java.util.Properties$LineReader.readLine(Properties.java:365) at java.util.Properties.load(Properties.java:293) at com.acme.mywebapp.logging.Log4jInitServlet.init(Log4jInitServlet.java:27) at javax.servlet.GenericServlet.init(GenericServlet.java:211) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3857) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4118) at org.apache.catal
RE: Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
> From: James Dekker [mailto:[EMAIL PROTECTED]
> Subject: Helping setting appropriate prefix when using
> ServletContext.getResourceAsStream()
Where to begin...
> // String prefix = getServletContext().getRealPath("/");
You apparently already figured out the above was a bad idea, as is any
direct I/O request from inside a webapp. When your webapp is deployed
as a .war, it has no access to the structure inside the .war file other
than via the classloader (which includes the getResourceAsStream() API).
Consequently, much of the rest of your code in the servlet is
inappropriate.
As far as where to place log4j.properties, the Tomcat doc states:
"You would place a similar log4j.properties file in your web
application's WEB-INF/classes folder, and log4j1.2.8.jar into
WEB-INF/lib. Then specify your package level logging."
See:
http://tomcat.apache.org/tomcat-5.5-doc/logging.html
for more info.
>
> MySampleAppServlet
> /app
>
Note that the above will allow only the URI
http[s]://host[:port]/myapp/app to reach your servlet. If you want all
requests for the myapp context to be processed by your servlet, change
the url-pattern to just "/" (without the quotes).
>WEB-INF\log4j.properties
>WEB-INF\attributes-config.xml
Use forward slashes in the config files, even on Windows.
> Dec 21, 2006 4:53:16 PM
> org.apache.catalina.loader.WebappClassLoader.validateJarFile
> INFO:
> validateJarFile(C:\DevTools\tomcat\jakarta-tomcat-5.5.9\webapps\
> affiliates\WEB-INF\lib\servlet-api.jar)
> - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending
> class: javax/servlet/Servlet.class
Don't put servlet-api.jar into any of your webapps, since Tomcat already
supplies it in common/lib. No class should ever appear in more than one
place in any given branch of the classloader tree:
Bootstrap
|
System
|
Common
/ \
Catalina Shared
/ \
Webapp1 Webapp2 ...
- Chuck
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Helping setting appropriate prefix when using ServletContext.getResourceAsStream()
Hello there,
I am using JDK 1.5 & Tomcat 5.5.9 on WinXP...
Set up my init servlet which is supposed to load my log4j.properties
file from myapp/WEB-INF/log4j.properties.
Here's my init servlet's source listing:
--
package com.acme.logging;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import org.apache.log4j.PropertyConfigurator;
public class Log4jInitServlet extends HttpServlet {
public void init() throws ServletException {
// String prefix = getServletContext().getRealPath("/");
Properties p = new Properties();
String prefix = "./";
String file = getInitParameter("log4j-init-file");
File propFile = new File(prefix+file);
System.out.println("propFile path is: " + propFile);
try {
InputStream is =
getServletContext().getResourceAsStream("propFile");
if(!propFile.exists()){
System.out.println("log4j.properties not found, " +
propFile.getAbsolutePath());
}
p.load(is);
is.close();
} catch(IOException e) {
e.printStackTrace();
}
PropertyConfigurator.configureAndWatch(propFile.getAbsolutePath(),1);
}
}
Here's my web.xml file:
--
http://java.sun.com/dtd/web-app_2_3.dtd";>
MySampleApp
MySampleApp
MySampleAppServlet
com.acme.MySampleAppServlet
MySampleAppServlet
/app
log4j-init
com.acme.logging.Log4jInitServlet
log4j-init-file
WEB-INF\log4j.properties
1
xml-config-init
com.acme.config.XmlConfigInitServlet
xml-config-file
WEB-INF\attributes-config.xml
2
--
Now, when I deploy my app and run Tomcat this is what it says in the Console:
--
Dec 21, 2006 4:53:14 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Dec 21, 2006 4:53:14 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 847 ms
Dec 21, 2006 4:53:14 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 21, 2006 4:53:14 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.9
Dec 21, 2006 4:53:14 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Dec 21, 2006 4:53:15 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive affiliates.war
Dec 21, 2006 4:53:16 PM org.apache.catalina.loader.WebappClassLoader
validateJarFile
INFO:
validateJarFile(C:\DevTools\tomcat\jakarta-tomcat-5.5.9\webapps\affiliates\WEB-INF\lib\servlet-api.jar)
- jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending
class: javax/servlet/Servlet.class
log4j:WARN No appenders could be found for logger
(org.apache.catalina.session.ManagerBase).
log4j:WARN Please initialize the log4j system properly.
propFile path is: .\WEB-INF\log4j.properties
log4j.properties not found,
C:\DevTools\tomcat\jakarta-tomcat-5.5.9\bin\.\WEB-INF\log4j.properties
Dec 21, 2006 4:53:18 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 3778 ms
--
How should I set the prefix in my Log4jInitServlet to point to:
%CATALINA_HOME%/webapps/mywebapp/
Thank you so much!
-JD
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