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can't log Hibernate queries log4j

I am trying to log hibernate queries into a webapp specific log file.
I can log any message but I am still unable to log hibernate queries.
Them are being logged inside the server.log, even in a different file, but I need an app-specific log for each app running on the same server.
I am using log4j 1.2, I am able to create the log files, to log every information passed to console but hibernate queries.
Inside a database.properties file I found the hibernate.show_sql=true that is responsible for the logging output in console.
This is the kind of console's logging output I refer:
16:10:35,827 INFO [stdout] (http-localhost-127.0.0.1-8080-1) Hibernate: select [...](here is outputted the correct query passed, with the ? of the prepared statement)
Anyway, what I need is to log that output.
I tried different log4j.xml settings, but still with no success, it creates log files but does not log those outputs.
Here is the current setting, that is logging everything inside the same file, when I will be able to log even those information I will go on separating the logs.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd" >
<log4j:configuration>
<appender name="mainFileAppender2" class="org.apache.log4j.RollingFileAppender">
<param name="append" value="false" />
<param name="maxFileSize" value="100MB" />
<param name="maxBackupIndex" value="50" />
<param name="File" value="${webapp.root}/WEB-INF/logs/mainCORE.log"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p %c{1}:%L %m %n" />
</layout>
</appender>
<appender name="journaldev-hibernate2" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="${webapp.root}/WEB-INF/logs/hib-queriesCORE.log" />
<param name="Append" value="false"/><!--value="true" /-->
<param name="ImmediateFlush" value="true" />
<param name="MaxFileSize" value="200MB" />
<param name="MaxBackupIndex" value="50" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %d{Z} [%t] %-5p (%F:%L) - %m%n" />
</layout>
</appender>
<root>
<priority value="debug"></priority>
<!-- <appender-ref ref="stdout"/> -->
<appender-ref ref="mainFileAppender2"/>
</root>
This configuration logs everything but those outputs. In the server.log are logged as follows:
16:10:35,827 INFO [stdout] (http-localhost-127.0.0.1-8080-1) Hibernate: select [...](rest of the query)

Configure the logger for the following categories:
log4j.logger.org.hibernate.SQL=DEBUG
log4j.logger.org.hibernate.type=TRACE
The first one will log the SQL-Statement (with ? for parameter values), the second one will print those parameter values if you need them.
So something like this should do the trick in your case:
<category name="org.hibernate.SQL">
<appender-ref ref="journaldev-hibernate2"/>
<priority value="DEBUG"/>
</category>
<category name="org.hibernate.type">
<appender-ref ref="journaldev-hibernate2"/>
<priority value="TRACE"/>
</category>

Solved this way; Anyway it also extracts the values extracted from the query
log = ${jboss.server.log.dir}/log/
#Loggers
log4j.rootLogger = INFO, FILE
log4j.logger.org.hibernate.SQL = DEBUG, HIBERNATE
log4j.logger.org.hibernate.type = TRACE, HIBERNATE
#Appenders
# Main appender
log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FILE.File=${log}/main.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d %-5p %c{1}:%L %m %n
log4j.appender.FILE.ImmediateFlush=true
log4j.appender.FILE.Threshold=debug
log4j.appender.FILE.Append=true
log4j.appender.FILE.DatePattern=dd-MM-yyyy
# Hibernate queries appender
log4j.appender.HIBERNATE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.HIBERNATE.File=${log}/hib-queries.log
log4j.appender.HIBERNATE.layout=org.apache.log4j.PatternLayout
log4j.appender.HIBERNATE.layout.ConversionPattern=%d %d{Z} [%t] %-5p (%F:%L) - %m%n
log4j.appender.HIBERNATE.ImmediateFlush=true
log4j.appender.HIBERNATE.Threshold=debug
log4j.appender.HIBERNATE.Append=true
log4j.appender.HIBERNATE.DatePattern=dd-MM-yyyy

How to configure log4j to write DEBUG messages into a file and INFO to console

How can I configure log4j properties file to print DEBUG messages into a file and only INFO messages to console?
This is my properties file:
# Root logger option
log4j.rootLogger=INFO, stdout
log4j.logger.org.hibernate.SQL=TRACE, stdout
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.stdout.layout.ConversionPattern=%-5p %d{dd-MM-yyyy HH:mm:ss,SS} %t %c{1.}: %m%n

You can use log4j.properties like below:
# Root logger option
log4j.rootLogger=INFO, stdout, file
log4j.logger.org.hibernate.SQL=TRACE, stdout
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout..Threshold=INFO
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.stdout.layout.ConversionPattern=%-5p %d{dd-MM-yyyy HH:mm:ss,SS} %t %c{1.}: %m%n
# Direct log messages to file
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.Threshold=DEBUG
log4j.appender.file.File=/var/log/logfile.log
log4j.appender.file.Append=true
log4j.appender.file.Encoding=UTF-8
log4j.appender.file.DatePattern='-'yyyy-MM-dd'.log'
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%d{ISO8601}] %-5p %x%m%n
By this properties file, log4j create new logfile for each day and save previews logfile with date.

Alternative way with log4j xml configuration. Because I prefer to use xml for log4j config. Perhaps this may help you from some way.
eg.
<?xml version="1.0" encoding="UTF-8"?>
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"
debug="false">
<appender name="CONSOLE_LOG" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<param name="Threshold" value="INFO" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c] %m%n" />
</layout>
</appender>
<appender name="FILE_LOG" class="org.apache.log4j.DailyRollingFileAppender">
<param name="file" value="${catalina.home}/logs/debug.log" />
<param name="Threshold" value="DEBUG" />
<param name="maxBackupIndex" value="5" />
<param name="maxFileSize" value="1500MB" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS} |%5p| [%c] | %m%n" />
</layout>
</appender>
<root>
<appender-ref ref="CONSOLE_LOG" />
<appender-ref ref="FILE_LOG" />
</root>
</log4j:configuration>
So, your Java code be like:
logger.debug("your debug log message");
logger.info("your info log message");
To configure with log4j.properties, possible duplicate at How can I create 2 separate log files with one log4j config file?
Hope this help!

Writing Only INFO logs to console and ERROR logs to file

I have a requirement to write the INFO (not error and lower levels of INFO) logs to console and ERROR logs to file. Need to use log4j for this.

You need to set a Threshold on your appender for console output. Here's an example modified from the log4j distro:
# A1 is set to be a FileAppender sending its output to
# System.out. However, only info messages and above will be printed
# in A1 because A1's threshold is set to Level.INFO.
# The fact that the root level is set to Prority.DEBUG only influences
# log requests made to the root logger. It has no influence on the
# *appenders* attached to root.
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.Threshold=INFO
This way, anything printed to your ConsoleAppender A1 will be ignored if it's not at least INFO level. If you set the logging level to INFO then ONLY the INFO messages will be logged.
There's an FAQ question about this on the apache log4j site.

Try this.
log.file.path=C:/log
datestamp=yyyy-MM-dd HH:mm:ss.SSS
# Define the root logger with appender file
log4j.rootLogger=INFO, stdout
log4j.logger.biz.netweb=error, LOG_FILE
#, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p,[%d{${datestamp}}],[Thread:%t],[%C.%M(%L)]==>: %m%n
# LOG_FILE
log4j.appender.LOG_FILE=org.apache.log4j.RollingFileAppender
log4j.appender.LOG_FILE.File=${log.file.path}/system-log/system-log.txt
log4j.appender.LOG_FILE.ImmediateFlush=true
log4j.appender.LOG_FILE.MaxFileSize=5MB
log4j.appender.LOG_FILE.MaxBackupIndex=50
log4j.appender.LOG_FILE.Append=true
log4j.appender.LOG_FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOG_FILE.layout.conversionPattern=%5p,[%d{${datestamp}}],[%t,%C.%M(%L)]==>, %m%n

log4j.rootLogger = debug,stdout,D,E
print to console
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{ 1 }:%L - %m%n
print to file
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = logs/error.log ## log file name
log4j.appender.D.Append = true
log4j.appender.D.Threshold = ERROR ## ERROR log info!!!
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

Following log4j configuration file will logs only "INFO" level logs in to console and between "INFO" and "FATAL" logs in to log.log file.
I you want to change the log level, you can change the MinLevel/MaxLevel parameters of LevelRangeFilter section on both console and Rolling file appender.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<!--Redirect log messages to console-->
<appender name="stdout" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out"/>
<param name="Threshold" value="INFO"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%m"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMin" value="INFO"/>
<param name="LevelMax" value="INFO"/>
</filter>
</appender>
<!--Redirect log messages to a log file, support file rolling.-->
<appender name="file" class="org.apache.log4j.RollingFileAppender">
<param name="Threshold" value="INFO"/>
<param name="File" value="log.log"/>
<param name="maxFileSize" value="2Mb"/>
<param name="maxBackupIndex" value="10"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L -- %m%n"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMin" value="INFO"/>
<param name="LevelMax" value="FATAL"/>
</filter>
</appender>
<root>
<level value="INFO"></level>
<appender-ref ref="stdout"/>
<appender-ref ref="file"/>
</root>
</log4j:configuration>

Possible to use different log4j appenders for different methods?

I have a log4j configuration file and it uses a ConsoleAppender with a specific layout.
I use
logger.info("some text");
in several places in my java code.
Is it possible to create another appender with a different layout in the configuration file and use the specific appender wherever I choose in the code?

Is it possible to create another appender with a different layout in the configuration file and use the specific appender wherever I choose in the code?
Yes you can create different appender with a different layout and create different categories for each appender.
use the category name to get the logger instead of appender name.
Sample: (log4j.xml)
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="stdout1" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="[%.4t] %-5p %c{1} - %m%n" />
</layout>
</appender>
<appender name="stdout2" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%.4t] %-5p %c{1} - %m%n" />
</layout>
</appender>
<category name="category1">
<priority value="INFO" />
<appender-ref ref="stdout1" />
</category>
<category name="category2">
<priority value="DEBUG" />
<appender-ref ref="stdout2" />
</category>
</log4j:configuration>
Java Code: (get the logger based on category name)
org.apache.log4j.Logger.getLogger("category1").warn("debug msg for stdout1 appender");
org.apache.log4j.Logger.getLogger("category2").info("info msg for stdout2 appender");
Output:
[main] WARN category1 - warn msg for stdout1 appender
2014-05-09 02:46:29,216 [main] INFO category2 - info msg for stdout2 appender

log4j debug messages not showing in console despite isDebugEnabled being true

I am using the following code within my project to log debug messages with log4j
private static final Logger LOG = Logger.getLogger(MyClass.class)
// ...
if(LOG.isDebugEnabled()) {
LOG.debug("my log message");
}
I can confirm that my log4j configuration is correct by adding a break point at the line where the debug message is written, i.e. LOG.isDebugEnabled() does return true.
Interestingly, my debug message does not show up in the console of my IDE (IntelliJ), however when changing LOG.debug() to LOG.info(), the info message is logged as expected.
Any ideas what I should be looking for in order to find out what's going wrong here?
EDIT: here's my log4j.properties file
log4j.appender.Stdout=org.apache.log4j.ConsoleAppender
log4j.appender.Stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.Stdout.layout.conversionPattern=%-5p [%d{dd.MM.yy HH:mm:ss}] %C{1} - %m [thread: %t]\n
log4j.appender.Stdout.threshold=info
log4j.appender.StandaloneFile=org.apache.log4j.RollingFileAppender
log4j.appender.StandaloneFile.File=logs/standalone.log
log4j.appender.StandaloneFile.MaxFileSize=5MB
log4j.appender.StandaloneFile.MaxBackupIndex=20
log4j.appender.StandaloneFile.layout=org.apache.log4j.PatternLayout
log4j.appender.StandaloneFile.layout.ConversionPattern=%-5p [%d{dd.MM.yy HH:mm:ss}] %C{1} - %m [thread: %t]\n
log4j.appender.StandaloneFile.threshold=info
log4j.rootLogger=info, Stdout, StandaloneFile
log4j.logger.com.myPacke.package1=info, Stdout, StandaloneFile
log4j.logger.com.myPacke.package2=DEBUG

log4j.appender.Stdout.threshold=info
Should be:
log4j.appender.Stdout.threshold=debug
You just set the console threshold to be info, so you're not getting debug level logs.
Be aware you also set the RollingFileAppender threshold to info as #Stephen C commented.

Make sure your configuration has below appender...We have used log4j.xml so i am adding from xml
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<param name="Threshold" value="info" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p: %c - %m%n" />
</layout>
</appender>
<appender name="logfile" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="log/dcm_migration.log" />
<param name="Append" value="false" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p [%c{1}] %m %n" />
</layout>
</appender>