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Posted to log4j-user@logging.apache.org by Jacob Kjome <ho...@visi.com> on 2002/06/05 17:51:51 UTC
Re[2]: logger not working with servlet
Hello Peter,
Well, here's an example that I added to the open source Barracuda project (
http://barracuda.enhydra.org/ ). I'm attaching a zip file that
includes the web.xml and the Log4jInit servlet that the Barracuda
project uses. The nice thing with this servlet is that is sets up
Log4j using configureAndWatch() if it is able to use an absolute file
path (ie... it isn't working straight out of a .war file, rather it is
running from a directory on the file system). If it is running from a
.war file, it loads it via URL...and if it can't find the file in the
specified location, it just lets Log4j set itself up (assuming you put
log4j.properties or log4j.xml in WEB-INF/classes).
Hope this helps,
P.S. If you want to see the example working, go grab the latest cvs from
the Baracuda project, build, and set up Barracuda with Tomcat.
Jake
Wednesday, June 05, 2002, 8:58:25 AM, you wrote:
PC> i followed the instruction from the log4j documentation and put in my
PC> web.xml file the following for the servlet:
PC> <servlet>
PC> <servlet-name>TallyTeset</servlet-name>
PC> <servlet-class>roster.TallyTest</servlet-class>
PC> <init-param>
PC> <param-name>log4j-init-file</param-name>
PC> <param-value>WEB-INF/classes/roster/log4j-ct.prop</param-value>
PC> </init-param>
PC> <load-on-startup>1</load-on-startup>
PC> </servlet>
PC> and i use the following code to read the properties file:
PC> public void init(ServletConfig config) throws ServletException{
PC> super.init(config);
PC> prefix = getServletContext().getRealPath("/");
PC> file = getInitParameter("log4j-init-file");
PC> System.out.println("Prefix: " + prefix);
PC> System.out.println("File: " + file);
PC> }
PC> put looking at it the getInitParameter() method isn't reading the
PC> initialization from the web.xml. is that correct? i thought it would read
PC> it from the web.xml file.
PC> At 09:48 AM 6/5/2002, Ted Velkoff wrote:
>>The problem is not in the property file, but rather that the servlet doesn't
>>know where to find the property file.
>>
>>There are two parts - making sure the servlet reads the file, and second,
>>telling the servlet where to look.
>>
>>1) This tells the configurator to read the property file when the servlet is
>>started
>>
>>public init() {
>> ...
>> PropertyConfigurator.configure(filename);
>> ...
>>}
>>
>>2) But where does filename come from? This can be a headache, but one
>>solution is to put it relative to some location you can easily find from
>>your servlet container. In websphere, there's a system property
>>"server.root". Either the same exists for Tomcat or something similar.
>>Anyway...
>>
>>public init() {
>> ...
>> String filename = System.getProperty("server.root") + File.separator +
>>"log.properties"
>> ... // where "log.properties" is the name of your log4j property file.
>> ... // of course you could have some intermediate directories under
>>server.root...
>> PropertyConfigurator.configure(filename);
>> ...
>>}
>>
>>
>>
>>
>>-----Original Message-----
>>From: Peter Choe [mailto:choepete@mindspring.com]
>>Sent: Wednesday, June 05, 2002 9:31 AM
>>To: log4j-user@jakarta.apache.org
>>Subject: logger not working with servlet
>>
>>
>>i am trying to log4j to work with a servlet on tomcat4.0 and java1.4 on a
>>solaris intel machine. but when i try to call the servlet to get it to
>>log, i get the following message:
>>
>>log4j:WARN No appenders could be found for logger (roster.TallyTest).
>>log4j:WARN Please initialize the log4j system properly.
>>
>>this is my log property file:
>>
>>log4j.rootLogger=debug, A1, R
>>
>>log4j.appender.A1=org.apache.log4j.ConsoleAppender
>>
>>log4j.appender.A1.layout=org.apache.log4j.PatternLayout
>>log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
>>
>>log4j.appender.R=org.apache.log4j.RollingFileAppender
>>log4j.appender.R.File=/export/home/tomcat/logs/coursetally.log
>>log4j.appender.R.MaxFileSize=100KB
>>log4j.appender.R.MaxBackupIndex=1
>>
>>log4j.appender.R.layout=org.apache.log4j.PatternLayout
>>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
>>~
>>
>>any suggestions on why it isn't working for my servlets, but works for
>>stand alone java applications?
>>
>>Peter Choe
>>
>>
>>--
>>To unsubscribe, e-mail: <ma...@jakarta.apache.org>
>>For additional commands, e-mail: <ma...@jakarta.apache.org>
PC> Peter Choe
PC> --
PC> To unsubscribe, e-mail: <ma...@jakarta.apache.org>
PC> For additional commands, e-mail: <ma...@jakarta.apache.org>
--
Best regards,
Jacob mailto:hoju@visi.com
RE: Re[4]: logger not working with servlet
Posted by Benedetta Barbieri <bb...@dianoema.it>.
Hi Jake,
I solved my problem, I had mispelled the JDBCAppender full name (wrote
org.apache.log4j.JDBCAppender instead of org.apache.log4j.jdbc.JDBCAppender)
Benedetta
-----Original Message-----
From: Jacob Kjome [mailto:hoju@visi.com]
Sent: giovedi 6 giugno 2002 17.37
To: Log4J Users List
Subject: Re[4]: logger not working with servlet
Hello Benedetta,
What servlet engine are you using? Version?
Where do you put Log4j? It really needs to be in the WEB-INF/lib of
each webapp using logging and *not* in something like $TOMCAT_HOME/lib
where one Log4j instance is available to all contexts.
Jake
Thursday, June 06, 2002, 4:31:19 AM, you wrote:
BB> I tried your example, I got the error
BB> log4j:ERROR Could not instantiate class [JDBCAppender].
BB> java.lang.ClassNotFoundException: JDBCAppender
BB> in the servlet Log4jInit.
BB> I'm using log4j 1.2.3 and I have put it among the libraries of my
project
BB> The properties file is read fine.
BB> What could be wrong?
BB> Thanks
BB> Benedetta
BB> -----Original Message-----
BB> From: Jacob Kjome [mailto:hoju@visi.com]
BB> Sent: mercoledi 5 giugno 2002 17.52
BB> To: Log4J Users List
BB> Subject: Re[2]: logger not working with servlet
BB> Hello Peter,
BB> Well, here's an example that I added to the open source Barracuda
project (
BB> http://barracuda.enhydra.org/ ). I'm attaching a zip file that
BB> includes the web.xml and the Log4jInit servlet that the Barracuda
BB> project uses. The nice thing with this servlet is that is sets up
BB> Log4j using configureAndWatch() if it is able to use an absolute file
BB> path (ie... it isn't working straight out of a .war file, rather it is
BB> running from a directory on the file system). If it is running from a
BB> .war file, it loads it via URL...and if it can't find the file in the
BB> specified location, it just lets Log4j set itself up (assuming you put
BB> log4j.properties or log4j.xml in WEB-INF/classes).
BB> Hope this helps,
BB> P.S. If you want to see the example working, go grab the latest cvs
from
BB> the Baracuda project, build, and set up Barracuda with Tomcat.
BB> Jake
BB> Wednesday, June 05, 2002, 8:58:25 AM, you wrote:
PC>> i followed the instruction from the log4j documentation and put in my
PC>> web.xml file the following for the servlet:
PC>> <servlet>
PC>> <servlet-name>TallyTeset</servlet-name>
PC>> <servlet-class>roster.TallyTest</servlet-class>
PC>> <init-param>
PC>> <param-name>log4j-init-file</param-name>
PC>>
BB> <param-value>WEB-INF/classes/roster/log4j-ct.prop</param-value>
PC>> </init-param>
PC>> <load-on-startup>1</load-on-startup>
PC>> </servlet>
PC>> and i use the following code to read the properties file:
PC>> public void init(ServletConfig config) throws
ServletException{
PC>> super.init(config);
PC>> prefix = getServletContext().getRealPath("/");
PC>> file = getInitParameter("log4j-init-file");
PC>> System.out.println("Prefix: " + prefix);
PC>> System.out.println("File: " + file);
PC>> }
PC>> put looking at it the getInitParameter() method isn't reading the
PC>> initialization from the web.xml. is that correct? i thought it would
BB> read
PC>> it from the web.xml file.
PC>> At 09:48 AM 6/5/2002, Ted Velkoff wrote:
>>>The problem is not in the property file, but rather that the servlet
BB> doesn't
>>>know where to find the property file.
>>>
>>>There are two parts - making sure the servlet reads the file, and second,
>>>telling the servlet where to look.
>>>
>>>1) This tells the configurator to read the property file when the servlet
BB> is
>>>started
>>>
>>>public init() {
>>> ...
>>> PropertyConfigurator.configure(filename);
>>> ...
>>>}
>>>
>>>2) But where does filename come from? This can be a headache, but one
>>>solution is to put it relative to some location you can easily find from
>>>your servlet container. In websphere, there's a system property
>>>"server.root". Either the same exists for Tomcat or something similar.
>>>Anyway...
>>>
>>>public init() {
>>> ...
>>> String filename = System.getProperty("server.root") + File.separator +
>>>"log.properties"
>>> ... // where "log.properties" is the name of your log4j property
file.
>>> ... // of course you could have some intermediate directories under
>>>server.root...
>>> PropertyConfigurator.configure(filename);
>>> ...
>>>}
>>>
>>>
>>>
>>>
>>>-----Original Message-----
>>>From: Peter Choe [mailto:choepete@mindspring.com]
>>>Sent: Wednesday, June 05, 2002 9:31 AM
>>>To: log4j-user@jakarta.apache.org
>>>Subject: logger not working with servlet
>>>
>>>
>>>i am trying to log4j to work with a servlet on tomcat4.0 and java1.4 on a
>>>solaris intel machine. but when i try to call the servlet to get it to
>>>log, i get the following message:
>>>
>>>log4j:WARN No appenders could be found for logger (roster.TallyTest).
>>>log4j:WARN Please initialize the log4j system properly.
>>>
>>>this is my log property file:
>>>
>>>log4j.rootLogger=debug, A1, R
>>>
>>>log4j.appender.A1=org.apache.log4j.ConsoleAppender
>>>
>>>log4j.appender.A1.layout=org.apache.log4j.PatternLayout
>>>log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
>>>
>>>log4j.appender.R=org.apache.log4j.RollingFileAppender
>>>log4j.appender.R.File=/export/home/tomcat/logs/coursetally.log
>>>log4j.appender.R.MaxFileSize=100KB
>>>log4j.appender.R.MaxBackupIndex=1
>>>
>>>log4j.appender.R.layout=org.apache.log4j.PatternLayout
>>>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
>>>~
>>>
>>>any suggestions on why it isn't working for my servlets, but works for
>>>stand alone java applications?
>>>
>>>Peter Choe
>>>
>>>
>>>--
>>>To unsubscribe, e-mail:
BB> <ma...@jakarta.apache.org>
>>>For additional commands, e-mail:
BB> <ma...@jakarta.apache.org>
PC>> Peter Choe
PC>> --
PC>> To unsubscribe, e-mail:
BB> <ma...@jakarta.apache.org>
PC>> For additional commands, e-mail:
BB> <ma...@jakarta.apache.org>
BB> --
BB> Best regards,
BB> Jacob mailto:hoju@visi.com
BB> --
BB> To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
BB> For additional commands, e-mail:
<ma...@jakarta.apache.org>
--
Best regards,
Jacob mailto:hoju@visi.com
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>
Re[4]: logger not working with servlet
Posted by Jacob Kjome <ho...@visi.com>.
Hello Benedetta,
What servlet engine are you using? Version?
Where do you put Log4j? It really needs to be in the WEB-INF/lib of
each webapp using logging and *not* in something like $TOMCAT_HOME/lib
where one Log4j instance is available to all contexts.
Jake
Thursday, June 06, 2002, 4:31:19 AM, you wrote:
BB> I tried your example, I got the error
BB> log4j:ERROR Could not instantiate class [JDBCAppender].
BB> java.lang.ClassNotFoundException: JDBCAppender
BB> in the servlet Log4jInit.
BB> I'm using log4j 1.2.3 and I have put it among the libraries of my project
BB> The properties file is read fine.
BB> What could be wrong?
BB> Thanks
BB> Benedetta
BB> -----Original Message-----
BB> From: Jacob Kjome [mailto:hoju@visi.com]
BB> Sent: mercoledi 5 giugno 2002 17.52
BB> To: Log4J Users List
BB> Subject: Re[2]: logger not working with servlet
BB> Hello Peter,
BB> Well, here's an example that I added to the open source Barracuda project (
BB> http://barracuda.enhydra.org/ ). I'm attaching a zip file that
BB> includes the web.xml and the Log4jInit servlet that the Barracuda
BB> project uses. The nice thing with this servlet is that is sets up
BB> Log4j using configureAndWatch() if it is able to use an absolute file
BB> path (ie... it isn't working straight out of a .war file, rather it is
BB> running from a directory on the file system). If it is running from a
BB> .war file, it loads it via URL...and if it can't find the file in the
BB> specified location, it just lets Log4j set itself up (assuming you put
BB> log4j.properties or log4j.xml in WEB-INF/classes).
BB> Hope this helps,
BB> P.S. If you want to see the example working, go grab the latest cvs from
BB> the Baracuda project, build, and set up Barracuda with Tomcat.
BB> Jake
BB> Wednesday, June 05, 2002, 8:58:25 AM, you wrote:
PC>> i followed the instruction from the log4j documentation and put in my
PC>> web.xml file the following for the servlet:
PC>> <servlet>
PC>> <servlet-name>TallyTeset</servlet-name>
PC>> <servlet-class>roster.TallyTest</servlet-class>
PC>> <init-param>
PC>> <param-name>log4j-init-file</param-name>
PC>>
BB> <param-value>WEB-INF/classes/roster/log4j-ct.prop</param-value>
PC>> </init-param>
PC>> <load-on-startup>1</load-on-startup>
PC>> </servlet>
PC>> and i use the following code to read the properties file:
PC>> public void init(ServletConfig config) throws ServletException{
PC>> super.init(config);
PC>> prefix = getServletContext().getRealPath("/");
PC>> file = getInitParameter("log4j-init-file");
PC>> System.out.println("Prefix: " + prefix);
PC>> System.out.println("File: " + file);
PC>> }
PC>> put looking at it the getInitParameter() method isn't reading the
PC>> initialization from the web.xml. is that correct? i thought it would
BB> read
PC>> it from the web.xml file.
PC>> At 09:48 AM 6/5/2002, Ted Velkoff wrote:
>>>The problem is not in the property file, but rather that the servlet
BB> doesn't
>>>know where to find the property file.
>>>
>>>There are two parts - making sure the servlet reads the file, and second,
>>>telling the servlet where to look.
>>>
>>>1) This tells the configurator to read the property file when the servlet
BB> is
>>>started
>>>
>>>public init() {
>>> ...
>>> PropertyConfigurator.configure(filename);
>>> ...
>>>}
>>>
>>>2) But where does filename come from? This can be a headache, but one
>>>solution is to put it relative to some location you can easily find from
>>>your servlet container. In websphere, there's a system property
>>>"server.root". Either the same exists for Tomcat or something similar.
>>>Anyway...
>>>
>>>public init() {
>>> ...
>>> String filename = System.getProperty("server.root") + File.separator +
>>>"log.properties"
>>> ... // where "log.properties" is the name of your log4j property file.
>>> ... // of course you could have some intermediate directories under
>>>server.root...
>>> PropertyConfigurator.configure(filename);
>>> ...
>>>}
>>>
>>>
>>>
>>>
>>>-----Original Message-----
>>>From: Peter Choe [mailto:choepete@mindspring.com]
>>>Sent: Wednesday, June 05, 2002 9:31 AM
>>>To: log4j-user@jakarta.apache.org
>>>Subject: logger not working with servlet
>>>
>>>
>>>i am trying to log4j to work with a servlet on tomcat4.0 and java1.4 on a
>>>solaris intel machine. but when i try to call the servlet to get it to
>>>log, i get the following message:
>>>
>>>log4j:WARN No appenders could be found for logger (roster.TallyTest).
>>>log4j:WARN Please initialize the log4j system properly.
>>>
>>>this is my log property file:
>>>
>>>log4j.rootLogger=debug, A1, R
>>>
>>>log4j.appender.A1=org.apache.log4j.ConsoleAppender
>>>
>>>log4j.appender.A1.layout=org.apache.log4j.PatternLayout
>>>log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
>>>
>>>log4j.appender.R=org.apache.log4j.RollingFileAppender
>>>log4j.appender.R.File=/export/home/tomcat/logs/coursetally.log
>>>log4j.appender.R.MaxFileSize=100KB
>>>log4j.appender.R.MaxBackupIndex=1
>>>
>>>log4j.appender.R.layout=org.apache.log4j.PatternLayout
>>>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
>>>~
>>>
>>>any suggestions on why it isn't working for my servlets, but works for
>>>stand alone java applications?
>>>
>>>Peter Choe
>>>
>>>
>>>--
>>>To unsubscribe, e-mail:
BB> <ma...@jakarta.apache.org>
>>>For additional commands, e-mail:
BB> <ma...@jakarta.apache.org>
PC>> Peter Choe
PC>> --
PC>> To unsubscribe, e-mail:
BB> <ma...@jakarta.apache.org>
PC>> For additional commands, e-mail:
BB> <ma...@jakarta.apache.org>
BB> --
BB> Best regards,
BB> Jacob mailto:hoju@visi.com
BB> --
BB> To unsubscribe, e-mail: <ma...@jakarta.apache.org>
BB> For additional commands, e-mail: <ma...@jakarta.apache.org>
--
Best regards,
Jacob mailto:hoju@visi.com
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>
RE: Re[2]: logger not working with servlet
Posted by Benedetta Barbieri <bb...@dianoema.it>.
I tried your example, I got the error
log4j:ERROR Could not instantiate class [JDBCAppender].
java.lang.ClassNotFoundException: JDBCAppender
in the servlet Log4jInit.
I'm using log4j 1.2.3 and I have put it among the libraries of my project
The properties file is read fine.
What could be wrong?
Thanks
Benedetta
-----Original Message-----
From: Jacob Kjome [mailto:hoju@visi.com]
Sent: mercoledi 5 giugno 2002 17.52
To: Log4J Users List
Subject: Re[2]: logger not working with servlet
Hello Peter,
Well, here's an example that I added to the open source Barracuda project (
http://barracuda.enhydra.org/ ). I'm attaching a zip file that
includes the web.xml and the Log4jInit servlet that the Barracuda
project uses. The nice thing with this servlet is that is sets up
Log4j using configureAndWatch() if it is able to use an absolute file
path (ie... it isn't working straight out of a .war file, rather it is
running from a directory on the file system). If it is running from a
.war file, it loads it via URL...and if it can't find the file in the
specified location, it just lets Log4j set itself up (assuming you put
log4j.properties or log4j.xml in WEB-INF/classes).
Hope this helps,
P.S. If you want to see the example working, go grab the latest cvs from
the Baracuda project, build, and set up Barracuda with Tomcat.
Jake
Wednesday, June 05, 2002, 8:58:25 AM, you wrote:
PC> i followed the instruction from the log4j documentation and put in my
PC> web.xml file the following for the servlet:
PC> <servlet>
PC> <servlet-name>TallyTeset</servlet-name>
PC> <servlet-class>roster.TallyTest</servlet-class>
PC> <init-param>
PC> <param-name>log4j-init-file</param-name>
PC>
<param-value>WEB-INF/classes/roster/log4j-ct.prop</param-value>
PC> </init-param>
PC> <load-on-startup>1</load-on-startup>
PC> </servlet>
PC> and i use the following code to read the properties file:
PC> public void init(ServletConfig config) throws ServletException{
PC> super.init(config);
PC> prefix = getServletContext().getRealPath("/");
PC> file = getInitParameter("log4j-init-file");
PC> System.out.println("Prefix: " + prefix);
PC> System.out.println("File: " + file);
PC> }
PC> put looking at it the getInitParameter() method isn't reading the
PC> initialization from the web.xml. is that correct? i thought it would
read
PC> it from the web.xml file.
PC> At 09:48 AM 6/5/2002, Ted Velkoff wrote:
>>The problem is not in the property file, but rather that the servlet
doesn't
>>know where to find the property file.
>>
>>There are two parts - making sure the servlet reads the file, and second,
>>telling the servlet where to look.
>>
>>1) This tells the configurator to read the property file when the servlet
is
>>started
>>
>>public init() {
>> ...
>> PropertyConfigurator.configure(filename);
>> ...
>>}
>>
>>2) But where does filename come from? This can be a headache, but one
>>solution is to put it relative to some location you can easily find from
>>your servlet container. In websphere, there's a system property
>>"server.root". Either the same exists for Tomcat or something similar.
>>Anyway...
>>
>>public init() {
>> ...
>> String filename = System.getProperty("server.root") + File.separator +
>>"log.properties"
>> ... // where "log.properties" is the name of your log4j property file.
>> ... // of course you could have some intermediate directories under
>>server.root...
>> PropertyConfigurator.configure(filename);
>> ...
>>}
>>
>>
>>
>>
>>-----Original Message-----
>>From: Peter Choe [mailto:choepete@mindspring.com]
>>Sent: Wednesday, June 05, 2002 9:31 AM
>>To: log4j-user@jakarta.apache.org
>>Subject: logger not working with servlet
>>
>>
>>i am trying to log4j to work with a servlet on tomcat4.0 and java1.4 on a
>>solaris intel machine. but when i try to call the servlet to get it to
>>log, i get the following message:
>>
>>log4j:WARN No appenders could be found for logger (roster.TallyTest).
>>log4j:WARN Please initialize the log4j system properly.
>>
>>this is my log property file:
>>
>>log4j.rootLogger=debug, A1, R
>>
>>log4j.appender.A1=org.apache.log4j.ConsoleAppender
>>
>>log4j.appender.A1.layout=org.apache.log4j.PatternLayout
>>log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
>>
>>log4j.appender.R=org.apache.log4j.RollingFileAppender
>>log4j.appender.R.File=/export/home/tomcat/logs/coursetally.log
>>log4j.appender.R.MaxFileSize=100KB
>>log4j.appender.R.MaxBackupIndex=1
>>
>>log4j.appender.R.layout=org.apache.log4j.PatternLayout
>>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
>>~
>>
>>any suggestions on why it isn't working for my servlets, but works for
>>stand alone java applications?
>>
>>Peter Choe
>>
>>
>>--
>>To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
>>For additional commands, e-mail:
<ma...@jakarta.apache.org>
PC> Peter Choe
PC> --
PC> To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
PC> For additional commands, e-mail:
<ma...@jakarta.apache.org>
--
Best regards,
Jacob mailto:hoju@visi.com
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>