Configure Log4j properties for J

随笔记录程序员成长之路

在Java程序中设置Log4j的方法有很多种，这里我只尝试过一种并且成功了。

首先，需要在main方法中加入一个参数来接收Log4j的properties文件：

//Log4j properties file

String log4jProperties = args[5];

然后创建file

File log4jFile =new File(log4jProperties);

如果你想把log的名字传进去，可以设置system的property

System.setProperty("LOGGINGNAME","hdfsputService");

最后用PropertyConfigurator来配置就行了

PropertyConfigurator.configure(log4jFile.getAbsolutePath());

以下是配置文件

# Spark Streaming Logging Configuration

# See also: http://spark.apache.org/docs/2.0.2/running-on-yarn.html#debugging-your-application

log4j.rootLogger=INFO, logRollingFile

log4j.appender.logRollingFile =org.apache.log4j.RollingFileAppender

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

log4j.appender.logRollingFile.layout.ConversionPattern =%d %p %c %m %n

log4j.appender.logRollingFile.Threshold =DEBUG

log4j.appender.logRollingFile.ImmediateFlush =TRUE

log4j.appender.logRollingFile.Append =TRUE

log4j.appender.logRollingFile.File =/tmp/delevin/log/${LOGGINGNAME}.log

log4j.appender.logRollingFile.MaxFileSize =50MB

log4j.appender.logRollingFile.MaxBackupIndex =10

log4j.appender.logRollingFile.Encoding =UTF-8