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  #1  
Old February 12th, 2007, 03:18 AM
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Log4j.properties
I created the following log4j.properties in /WEB-INF/classes/

Code:
# For JBoss: Avoid to setup Log4J outside $JBOSS_HOME/server/default/deploy/log4j.xml!
# For all other servers: Comment out the Log4J listener in web.xml to activate Log4J.
log4j.rootLogger=INFO, stdout, logfile

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n

log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=C:/Temp/springapp.log
log4j.appender.logfile.MaxFileSize=512KB
# Keep three backup files.
log4j.appender.logfile.MaxBackupIndex=3
# Pattern to output: date priority [category] - message
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n


However, no springapp.log is generated at all. Is there any additional configuration required? Thanks.
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  #2  
Old February 12th, 2007, 07:48 AM
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How are you loading the properties file?
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  #3  
Old February 12th, 2007, 12:04 PM
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I am not sure, how can I check?

In the same folder, there is a Resource Bundle file called messages.properties. It works.
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  #4  
Old February 12th, 2007, 12:48 PM
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Quote:
Comment out the Log4J listener in web.xml to activate Log4J.

Did you do this?

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Old February 12th, 2007, 03:22 PM
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Normally I use the PropertyConfigurator to load log4j properties files. But it can be done through the classpath and through xml configuration files as your comment seems to suggest.
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  #6  
Old February 12th, 2007, 08:02 PM
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It seems so. In the comment, there is "Comment out the Log4J listener in web.xml to activate Log4J."

Should there be somewhere else to activate Log4J in web.xml? Please advise. Thanks.
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  #7  
Old February 13th, 2007, 09:07 AM
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Quote:
Should there be somewhere else to activate Log4J in web.xml? Please advise. Thanks.

Check the web.xml for a Log4jListener. You may also try specifying a Log4JConfigListener in your deployment descriptor (web.xml).

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  #8  
Old February 13th, 2007, 08:56 PM
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the file /WEB-INF/classes/log4j.properties should be called automatically, shouldn't it?
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  #9  
Old February 14th, 2007, 07:12 AM
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Quote:
the file /WEB-INF/classes/log4j.properties should be called automatically, shouldn't it?

Not necessarily, and apparently not in your case. Is there some reason you don't want to configure an appropriate listener?

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  #10  
Old February 14th, 2007, 09:49 PM
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Quote:
Originally Posted by Yawmark
Not necessarily, and apparently not in your case. Is there some reason you don't want to configure an appropriate listener?

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I did it now but I cannot deploy the application. Please help advise. Thanks.

Error:
Code:
log4j:WARN No appenders could be found for logger (org.springframework.web.context.support.XmlWebApplicationContext).
log4j:WARN Please initialize the log4j system properly.
2007-02-15 11:30:42,894 ERROR [org.apache.catalina.core.StandardContext] - <Error listenerStart>
2007-02-15 11:30:42,894 ERROR [org.apache.catalina.core.StandardContext] - <Context [/springapp] startup failed due to previous errors>


web.xml:
Code:
	<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>/WEB-INF/classes/log4j.properties</param-value>
	</context-param>
	<listener>
	   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>	
	<listener>
	   <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
	</listener>
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  #11  
Old February 15th, 2007, 07:16 AM
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Quote:
Please help advise. Thanks.

At this point, I'm just guessing. So I can provide better assistance, please provide the complete details of your configuration in its current state; i.e., web framework and version, servlet container and version, full web.xml and log4j configuration files, deployment structure, file locations, etc.

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Old February 15th, 2007, 09:39 PM
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I followed the below example to set up log4j but failed.
http://www.springframework.org/docs/MVC-step-by-step/Spring-MVC-step-by-step-Part-1.html

So I set up log4jConfigLocation later
then my log file springapp.log appeared but get the error posted in the previous post and I cannot start my web application.

Thanks.
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Old February 23rd, 2007, 03:02 AM
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Finally I solved the problem. Let me share the key here:

Part of web.xml:
Code:
	<context-param>
		<param-name>webAppRootKey</param-name>
		<param-value>springapp.root</param-value>
	</context-param>
	<context-param>
		<param-name>log4jConfigLocation</param-name>
		<param-value>/WEB-INF/classes/log4j.properties</param-value>
	</context-param>
<listener><listener-class>org.springframework.web.util.Log4jConfigListener</listener-class></listener>


That's all. Thanks.
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