I have a problem with one of my tomcat installations.
The webapp do not pick up a specific log4j.properties file. The only way to make this work was by delete the $CATALINA_BASE/conf/logging.properties file and adding my log4j.properties file in $CATALINA_BASE/lib/ folder.
I was wondering how to configure it to pick up my webapp specific property file (preferably without deleting conf/logging.properties).
I have tried putting the log4j.properties file in WEB-INF/lib, WEB-INF/classes and in a jar to be picked up but to no avail. The only thing that worked was what I described earlier.
Tomcat version is 6.0.18
The properties file is correct as it is working as described
According to the Tomcat 6 docs, put log4j.jar and log4j.properties into WEB-INF/lib and WEB-INF/classes of your web application.
If that doesn't resolve the issue, please edit your question and include a copy of your log4j.properties file.
Related
I have log4j2 jars under $CATALINA_HOME/lib:
log4j-api-2.10.0.jar
log4j-core-2.10.0.jar
log4j-jul-2.10.0.jar
export JAVA_OPTS="${JAVA_OPTS} -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager"
In catalina.properties I've got common classloader and I tried to add log4j-jul-2.10.0.jar again even if it is already under the CATALINA_HOME/lib, but no success.
common.loader="${catalina.base}/lib","${catalina.base}/lib/.jar","${catalina.home}/lib","${catalina.home}/lib/.jar","/opt/tomcat/apache-tomcat-8.5.15/lib/log4j-jul-2.10.0.jar"
I have deleted logging.properties under Tomcat and add a new log4j2.xml to path
ERRORMESSAGE:
Could not load Logmanager "org.apache.logging.log4j.jul.LogManager"
java.lang.ClassNotFoundException: org.apache.logging.log4j.jul.LogManager
Any idea why LogManager is still missing or should I use some other jars instead. In another messages they are speaking juli.jar and extras, but in their case they have older Tomcat version, 6 or 7.
You just need to add the log4j2-api, log4j2-core and log4j2-appserver libraries into the Tomcat classpath, provide the log4j2 configuration file and remove the $CATALINA_BASE/conf/logging.properties from your installation.
This is most easily done by:
Creating a set of directories in catalina home named log4j2/lib and
log4j2/conf.
Placing log4j2-api-2.x.x.jar, log4j2-core-2.x.x.jar, and
log4j2-appserver-2.x.x.jar in the log4j2/lib directory.
Creating a file named log4j2-tomcat.xml, log4j2-tomcat.json,
log4j2-tomcat.yaml, log4j2-tomcat.yml, or log4j2-tomcat.properties
in the log4j2/conf directory.
Create or modify setenv.sh in the tomcat bin directory to include
CLASSPATH=$CATALINA_HOME/log4j2/lib/*:$CATALINA_HOME/log4j2/conf
You can force the applications that use the JUL framework to use log4j2 format changing the environment variable LOGGING_MANAGER. You can do this by adding in the setenv.sh file: LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager"
Remember that org.apache.logging.log4j.jul.LogManager is included in the log4j-jul-2.x.x.jar bridge which must be added to your classpath.
refs:
https://db-blog.web.cern.ch/blog/luis-rodriguez-fernandez/2019-03-keeping-your-logs-clean-apache-tomcat-9-log4j2-and-spring-boot
https://logging.apache.org/log4j/2.x/log4j-appserver/index.html
I know that this is a little late to answer this question, but I'm sure it could help someone struggling like me trying to configure tomcat so that it uses lo4j.
I've been working on something similar for the past 3 days, and I found out that the extras folder provided by tomcat's website are not what I need. But, you can still grab them using maven. I was able to configure tomcat so that it uses the mentioned jar files ( tomcat-extras-juli.jar and tomcat-extras-juli-adapters.jar ). Just remember to include the VM argument -Dlog4j.debug to make your life easier and catch errors quicker.
Maven repo: https://mvnrepository.com/artifact/org.apache.tomcat.extras/tomcat-extras-juli-adapters
I came upon the same problem after I included the mentioned jars provided by tomcat's repository. After a quick analysis I found that the interface org.apache.juli.WebAppProperties was not included in the jar file tomcat-extras-juli.jar which is utilized by the file org.apache.catalina.loader.WebappClassLoaderBase. After researching a bit more, I realized that the tomcat jar files are included in the Maven Repo. I downloaded the mentioned jar files under the same version of tomcat ( currently 8.5 ), plugged those jars in my tomcat installation and everything worked as expected. Now my version of tomcat uses log4j instead of juli.
log4j2 jars must be loaded along with bootstrap.jar (tomcat startup) and tomcat-juli.jar (logging)
These jars are present in CATALINA_HOME/bin directory and are responsible for
initialization of tomcat including logging.
In CATALINA_HOME/cataline.bat in case of windows, you will find below code -
set "CLASSPATH=%CLASSPATH%%CATALINA_HOME%\bin\bootstrap.jar"
Here, you should add log4j2 jars at the classpath so that when tomcat starts, these jars are there.
Create in tomcat\bin\ file setenv.bat and add to file:
set "CLASSPATH=%CLASSPATH%%CATALINA_BASE%\bin;%CATALINA_BASE%\bin\log4j-core-2.10.0.jar;%CATALINA_BASE%\bin\log4j-api-2.10.0.jar;%CATALINA_BASE%\bin\log4j-jul-2.10.0.jar"
copy jars files
log4j-api-2.10.0.jar
log4j-core-2.10.0.jar
log4j-jul-2.10.0.jar
to folder tomcat\bin\
create file log4j2.xml in tomcat\bin folder
Recently While I was doing a Dynamic web project,I forgot to include OJDBC.jar in the WEB-INF folder.But the code ran file without showing any Class Not Found Exception.But when my friend did the same,Class not found exception was shown.Then when he included the OJDBC.jar in the WEB-INF folder,the code ran fine.I am not able to understand why this is the case.Is it not mandatory to include OJDBC file in WEB-INF folder?And we both used Apache Tomcat Server.
As you can see from the above screenshot,I experimented by not including OJDBC.jar in the WEB-INF folder.The code ran fine.Please tell me why this is the case?
Well, Eclipse builds the context's classpath joining libraries from several locations:
Of corse, the <tomcat_home>\lib\*.jar files.
The <project>\WEB-INF\lib\*.jar files.
... and also the deployment assembly entries (within the project's properties).
Check out every one of these and compare with your partner ones.
Can I put LOG4J jar at server level and still manage to use LOG4J.XML ofindividual War files ?
I have a problem here. I know the way to get around this problem is to package LOG4J jar in my own EAR or WAR file. But is there a way to put my LOG4J jar in the server level classpath, and have each application follow its own log4j.xml. In this case the LOG4J is getting initialized once with the log4j.xml of the first invoked application and applies the same properties for all the applications.It does not bother to look for the LOG4J.XML of the other applications.
You help is really appreciated. Thanks for your time!
Hello I have a webapp in Tomcat server on linux
I need to be able to tell it in what order to load the jars located in WEB-INF/bin.
I tried to set it up in the META-INF/MANIFEST.MF under Class-Path but it didn't work, and I've searched the web for a solution and did not find any.
(My project is not inside a war file)
(The solution to chane the jar filename to "aaaaaaaRealName.jar" is unacceptable)
(I'm using Tomcat 7 (I think its v7.0.27))
Ido
The tomcat loads jars in the following order (extract from here: http://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html):
bootstrap (JRE/lib/ext folder)
system (can't used to add yours)
webapp libraries (first WEB-INF/classes, then WEB-INF/lib)
common libraries (check the common.loader property , then tomcat instance/lib, then common tomcat folder/lib)
So if you want to specify the order, just put the jars in the right place.
In Tomcat I want to use a jar inside a web application. The jar file will exist outside of the Tomcat directory.
To include the jar file in tomcat classpath, I modified the TomcatHome/conf/catalina.properties to include the absolute path of my jar file like,
shared.loader=D:\jaa\MyJarFile.jar
as per the suggestion given in link,
http://www.mulesoft.com/tomcat-classpath
But it throws the error,
java.lang.NoClassDefFoundError
I have also tried ,
shared.loader=D:\jaa\*.jar
shared.loader=file:\\D:\jaa\MyJarFile.jar
None of them seem to work :(
If I try placing the jar inside tomcat/lib it seem to work. But I am not allowed to do that.
Please help me out with this issue as I have implementation the next week..
I figured myself how to add the classpath for tomcat. Instead of editing catalina.properties, just create a "setenv.sh" in the Tomcat Bin directory with the classpath,
Example,
CLASSPATH=D:\jaa\MyJarFile.jar
I just checked the catalina.sh in Tomcat/bin and these classpath variable will be set while setting the bootstrap as the classpath.
I was using IntelliJ and I tried everything like:
Using CtrlAltShiftS (Project Settings) and adding a dependency of mysql-connector.jar. Didn't work. (The only thing that worked was that code completion inside IntelliJ was working fine.
Adding mysql-connector.jar to apache-home/lib/ folder. Didn't work.
Including mysql-connector.jar from Maven inside IntelliJ. Just didn't work.
The thing that worked for me:
Include the mysql-connector.jar file in the PROJECT/web/WEB-INF/lib folder.
No need to add it as a dependency anywhere. Just compile this and it will work fine.
I find myself copying extra JARs, which should be available for all contexts and should therefor go into the root loader, into the following directory:
C:\Program Files\Apache Software Foundation\Tomcat 9.0\lib
But this only possible if you have access to this directory, which might not be the case for all ISPs. At least you can do it at home.
Bye