I am trying to adopt Log4j2 to my project. Since my Java Application is packeted in a JAR file. I don't want "log4j2.xml" configuration packaged inside of JAR file. I am trying to learn how configuration file works from "http://logging.apache.org/log4j/2.x/manual/configuration.html"
But seems there is no clear instruction regarding altering the configuration file path of the Log4j2.
After googling about this topic I found something like "Referencing log4j config file within executable JAR" Referencing log4j config file within executable JAR, But this solution is not available any more according to "http://logging.apache.org/log4j/2.x/manual/migration.html" (if I understand it correctly).
So I am wondering if someone have any idea about this issue.
Thanks
You can set the system property to specify the configuration path.
set the
"-Dlog4j.configurationFile="D:\learning\blog\20130115\config\LogConfig.xml"
in VM arguments. replace
"D:\learning\blog\20130115\config\LogConfig.xml"
to your configuration path.
Put the log4j2.xml file in resource directory in your project so that the log4j will locate files under class path automatically.
Loading log4j2.xml file from the customized location-
You can use the System property/ VM arguments- Dlog4j.configurationFile=file:/path/to/file/log4j2.xml
This will work for any web application.
For some legacy applications, you can create a class for loading log4j2.xml/ log4j2.properties from the custom location on the machine like- D:/property/log4j2.xml
Using any of these approach,during application startup, the log4j2.xml file from the src/resources folder will be overridden by the custom location log4j.xml file.
Try using -Dlogging.config=Path_to_your_file
Related
I have Angular 7 application. I'm building it and generating Dist package. I would like to deploy this package on Tomcat or Apache web-server.
Now, I do not want to hard-code any values in app.config.json file. I would like to externalize these properties. Let's say, i have server.xml file or any other file in tomcat and values should be there and app.config.json should read property values from there.
How can I achieve this? Is there any other way, I can externalize my properties?
Maybe this can help you https://itnext.io/how-does-app-initializer-work-so-what-do-you-need-to-know-about-dynamic-configuration-in-angular-718e7c345971.
Using this approach you can provide your configuration file directly to container (Tomcat or Apache Server) independently on environment.
If you use k8s, you can provide this config file through ConfigMap.
I am getting this error while running the Student Management System project in netbeans Ide project in made in java,jsp,html.Please help me
Your project's build has a dependency on the Java ARchive (.jar file) com.mysql.jdbc_5.1.5
There are two possibilities that I see here, without further details on what you have done so far:
1) You already downloaded the jar, but when you specified the path where your build process is gonna look for that file you had an error in your path ... make sure you have a jar file in C:\Users\Harsh Jain\Downloads\com.mysql.jdbc_5.1.5.jar or C:\Users\Harsh Jain\Downloads\com.mysql.jdbc_5.1.5.jar\com.mysql.jdbc_5.1.5.jar (I'm thinking you might have copied the name of the jar file twice in your path).
2) If you have not manually downloaded that file, then you should do so. You can find that version at http://www.java2s.com/Code/Jar/c/Downloadcommysqljdbc515jar.htm (or elsewhere). Once downloaded, make sure to copy/unzip the actual JAR file to your C:\Users\Harsh Jain\Downloads folder.
Once you have ensured the file is actually on your system AND in the right path, run the build again.
My web application will be deployed to Weblogic application servers on Windows and Linux/Unix in different environments. The log file location, appenders and log levels will vary between the different deployments and we would like to be able to change the logging configuration during runtime (by exchanging the config file), so I cannot embed a log4j2.xml (or whatever other config file) into my deployment. And since I'm running on Application servers I cannot control, I've got no chance to add environment variables to point to another configuration Location.
Currently, my log4j2.xml resides in the classpath of my application and is being packaged into my war file. Is there any way to tell Log4J2 to use a configuration file e. g. relative to the application root (like Log4J's configureAndWatch(fileLocation) method)?
I found lots of examples of how to configure Log4J2, but everything I found about the config file location points to the applications class path.
I finally found a solution for my problem. I added a file named
log4j2.component.properties
to my project (in src/main/resources). This file contains a property pointing to the location of my log4j2 configuration file:
log4j.configurationFile=.//path//on//my//application//server//someLog4j2ConfigFile.xml
This causes log4j2 to read that file and configure itself from it's content.
In our project we are using log4j with log4j2. When I run the Junits I am getting the error saying: No log4j2 configuration file found.
But the log4j.properties file is already available in that location. Using Google I found that it requires logj2.xml file then I provided log4j2.xml file. Junits runs smoothly.
Does log4j2 support property file or not?
Log4j2 does support property file.
Property file can be provided to log4j2 by either of the following 2 ways:
Set the configuration file path (with .properties extension) in "log4j.configurationFile" system property.
Name the configuration file log4j2.properties (or log4j2-test.properties) and keep that in the classpath.
You can learn more about log4j2 configuration here.
I need to configire an apereo/cas in a few of days.
First I build the cas.war 4.2.2 according to https://github.com/apereo/cas-overlay-template. And then I deployed it in tomcat 8.0.36. After I start up the tomcat, I can login by the sample user(casuser: Mellon), but I can't find the cas.log file in tomcat/logs folder and other place by find / -name cas.log.
I have copied the log4j2.xml to /etc/cas/ as per the reference. Besides, I can't any error in tomcat/logs.
Did some one solve this problem or have a clue?
By the way, the log4j2 xml is available at https://github.com/apereo/cas-overlay-template/blob/master/etc/log4j2.xml.
Your log4j file describes where the log should be found. You'll file the location inside a file appender.
Your logging configuration doesn't specify a path so the files are going to end up in whatever the current directory is when you start tomcat or whatever tomcat sets the working directory to. That probably isn't what you want.