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1 # 设置全局的输出级别 2 log4j.rootLogger=ERROR,stdout,file 3 4 # 输出ERROR级别以上的日志到控制台 5 log4j.appender.stdout=org.apache.log4j.ConsoleAppender 6 log4j.appender.stdout.Target=System.out 7 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 8 log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n 9 10 # 输出ERROR级别以上的日志到E:\\test.log 11 log4j.appender.file=org.apache.log4j.RollingFileAppender 12 log4j.appender.file.File=E:\\test.log 13 log4j.appender.file.MaxFileSize=5MB 14 log4j.appender.file.MaxBackupIndex=10 15 log4j.appender.file.layout=org.apache.log4j.PatternLayout 16 log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} %-5p %c{1}\:%L - %m%n
1 package basic; 2 3 import org.apache.log4j.Logger; 4 5 public class Log4jTest { 6 7 private static final Logger logger = Logger.getLogger(Log4jTest.class); 8 9 public static void main(String[] args) { 10 logger.error("This is debug message."); 11 } 12 }
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原文地址:http://www.cnblogs.com/stray/p/5562016.html