log4j.properties

log4j.properties

### 把日志信息输出到控制台 ###
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{yyyy-MM-dd HH:mm:ss} %l  %m%n

### 把日志信息输出到文件:accp.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=c:/accp.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss}  %l  %m%n

### 设置优先级别、以及输出源 ###
log4j.rootLogger=ERROR, stdout, file
原文地址:https://www.cnblogs.com/bors/p/log4j.html