Log4J配置文件日志文件路径问题

不写死！

# Global logging configuration

log4j.rootLogger=INFO,file

# SqlMap logging configuration...

log4j.logger.com.ibatis=INFO

log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG

log4j.logger.com.ibatis.common.jdbc.ScriptRunner=INFO

log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=INFO

log4j.logger.java.sql.Connection=INFO

log4j.logger.java.sql.Statement=INFO

log4j.logger.java.sql.PreparedStatement=INFO

log4j.logger.java.sql.ResultSet=INFO

# Console output...

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Threshold=DEBUG

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] -
%m%n

log4j.appender.stdout.Target=System.out

##########################

#log4j.appender.stdout.layout.ConversionPattern=[framework] %d - %c
-%-4r [%t] %-5p %c %x - %m%n

#log4j.appender.stdout.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]
n%c[CATEGORY]%n%m[MESSAGE]%n%n

# File output by days...

log4j.appender.file=org.apache.log4j.DailyRollingFileAppender

log4j.appender.file.Threshold=ERROR

log4j.appender.file.file=${catalina.base}/logs/psp_error.log

log4j.appender.file.MaxFileSize=2000KB

log4j.appender.file.DatePattern="."yyyy-MM-dd

log4j.appender.file.layout=org.apache.log4j.PatternLayout

log4j.appender.file.layout.ConversionPattern=%d %p [%c] -
%m%n

# HTML output...

log4j.appender.sql_html=org.apache.log4j.RollingFileAppender

log4j.appender.sql_html.Threshold=DEBUG

log4j.appender.sql_html.File=${catalina.base}/logs/psp_sql.html

log4j.appender.sql_html.MaxFileSize=5000KB

log4j.appender.sql_html.MaxBackupIndex=1

log4j.appender.sql_html.layout=org.apache.log4j.HTMLLayout