playframework中将log输出到文件里的配置方法

1.现在项目的根目录下创建一个logs文件夹

2.在conf中创建一个log4j.properties文件，写入配置信息，如:

### set log levels ###

log4j.rootLogger=DEBUG,A1,A2

### direct messages to file framework.log ###

log4j.appender.A2=org.apache.log4j.DailyRollingFileAppender

log4j.appender.A2.File=logs/application.log

#log4j.appender.A2.Threshold = DEBUG ## \u8F93\u51FADEBUG\u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7

log4j.appender.A2.DatePattern='.'yyyy-MM-dd

log4j.appender.A2.layout=org.apache.log4j.PatternLayout

log4j.appender.A2.layout.ConversionPattern=[%-5p]%d%n%l%n%m%n

log4j.appender.A1=org.apache.log4j.ConsoleAppender

log4j.appender.A1.Target=System.out

log4j.appender.A1.layout=org.apache.log4j.PatternLayout

log4j.appender.A1.layout.ConversionPattern=%-5p(%10c{1}) %m%n

### application log config ###

log4j.logger.com.may=DEBUG,A1,A2

然后再重新运行项目，这时log就写入application.log中了。