### log output control D is debug log output is or not ,E is ERROR OUTPUT is or not control by have D ,E manual control log4j.rootLogger = error,stdout,D,E ### console logs ### 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{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n ### debug log ### log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = ./logs/debug/debug.log log4j.appender.D.Append = true log4j.appender.D.Threshold = DEBUG 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 ###error logs ### log4j.appender.E = org.apache.log4j.DailyRollingFileAppender log4j.appender.E.File = ./logs/error/error.log log4j.appender.E.Append = true log4j.appender.E.Threshold = ERROR log4j.appender.E.layout = org.apache.log4j.PatternLayout log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n