The configuration of the Struts log file log4j

1: Establish log4j.properties files

2: Placement Path/web-inf/classes

3: The standard contents are as follows

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### 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.patternlayout
Log4j.appender.stdout.layout.conversionpattern=%d{absolute}%5p%c{1}:%l-%m%n

### Direct messages to file Hibernate.log ###
#log4j. Appender.file=org.apache.log4j.fileappender
#log4j. Appender.file.file=hibernate.log
#log4j. appender.file.layout=org.apache.log4j.patternlayout
#log4j. Appender.file.layout.conversionpattern=%d{absolute}%5p%c{1}:%l-%m%n

### set Log levels-for more verbose logging change ' info ' to ' debug ' ###

Log4j.rootlogger=warn, stdout

#log4j. Logger.org.hibernate=info
Log4j.logger.org.hibernate=debug

### Log HQL Query parser activity
#log4j. Logger.org.hibernate.hql.ast.ast=debug

### Log just the SQL
#log4j. Logger.org.hibernate.sql=debug

### log JDBC bind parameters ###
Log4j.logger.org.hibernate.type=info
#log4j. Logger.org.hibernate.type=debug

### Log Schema Export/update ###
Log4j.logger.org.hibernate.tool.hbm2ddl=debug

### Log HQL Parse trees
#log4j. Logger.org.hibernate.hql=debug

### Log Cache Activity ###
#log4j. Logger.org.hibernate.cache=debug

### Log Transaction activity
#log4j. Logger.org.hibernate.transaction=debug

### Log JDBC Resource acquisition
#log4j. Logger.org.hibernate.jdbc=debug

### enable the following line if your want to track down connection ###
### when using leakages Onprovider ###
#log4j. logger.org.hibernate.connection.drivermanagerconnectionprovider=trace