log4j.properties 文件，放在 src 下

log4j.rootLogger=INFO,CONSOLE,ERRORLOG log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.Target=System.out log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %c %x - %m%n log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p [%t]  %x - %m%n log4j.appender.ERRORLOG=org.apache.log4j.DailyRollingFileAppender log4j.appender.ERRORLOG.Threshold=ERROR log4j.appender.ERRORLOG.Append=true log4j.appender.ERRORLOG.DatePattern='_'yyyyMMdd'.log' log4j.appender.ERRORLOG.layout=org.apache.log4j.PatternLayout log4j.appender.ERRORLOG.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %c %x - %m%n log4j.appender.ERRORLOG.File=../AppErrorLog log4j.logger.com.ibatis = DEBUG   log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG   log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG   log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG   log4j.logger.java.sql.Connection = DEBUG   log4j.logger.java.sql.Statement = DEBUG   log4j.logger.java.sql.PreparedStatement = DEBUG log4j.logger.java.sql.ResultSet = DEBUG