Logger4j的配置

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1 log4j.rootLogger=CONSOLE,FILE

2 log4j.addivity.org.apache=true

4 # 应用于控制台

5 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender

6 log4j.appender.CONSOLE.Threshold=INFO

7 log4j.appender.CONSOLE.Target=System.out

8 log4j.appender.CONSOLE.Encoding=GBK

9 log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout

10 log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

12 # 每天新建日志

13 log4j.appender.A1=org.apache.log4j.DailyRollingFileAppender

14 log4j.appender.A1.File=C:/log4j/log

15 log4j.appender.A1.Encoding=GBK

16 log4j.appender.A1.Threshold=DEBUG

17 log4j.appender.A1.DatePattern='.'yyyy-MM-dd

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

19 log4j.appender.A1.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L : %m%n

21 #应用于文件

22 log4j.appender.FILE=org.apache.log4j.FileAppender

23 log4j.appender.FILE.File=C:/log4j/file.log

24 log4j.appender.FILE.Append=false

25 log4j.appender.FILE.Encoding=GBK

26 log4j.appender.FILE.layout=org.apache.log4j.PatternLayout

27 log4j.appender.FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

29 # 应用于文件回滚

30 log4j.appender.ROLLING_FILE=org.apache.log4j.RollingFileAppender

31 log4j.appender.ROLLING_FILE.Threshold=ERROR

32 log4j.appender.ROLLING_FILE.File=rolling.log

33 log4j.appender.ROLLING_FILE.Append=true

34 log4j.appender.CONSOLE_FILE.Encoding=GBK

35 log4j.appender.ROLLING_FILE.MaxFileSize=10KB

36 log4j.appender.ROLLING_FILE.MaxBackupIndex=1

37 log4j.appender.ROLLING_FILE.layout=org.apache.log4j.PatternLayout

38 log4j.appender.ROLLING_FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

40 #自定义Appender

41 log4j.appender.im = net.cybercorlin.util.logger.appender.IMAppender

42 log4j.appender.im.host = mail.cybercorlin.net

43 log4j.appender.im.username = username

44 log4j.appender.im.password = password

45 log4j.appender.im.recipient = yyflyons@163.com

46 log4j.appender.im.layout=org.apache.log4j.PatternLayout

47 log4j.appender.im.layout.ConversionPattern =[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

49 #应用于socket

50 log4j.appender.SOCKET=org.apache.log4j.RollingFileAppender

51 log4j.appender.SOCKET.RemoteHost=localhost

52 log4j.appender.SOCKET.Port=5001

53 log4j.appender.SOCKET.LocationInfo=true

54 # Set up for Log Facter 5

55 log4j.appender.SOCKET.layout=org.apache.log4j.PatternLayout

56 log4j.appender.SOCET.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]%n%c[CATEGORY]%n%m[MESSAGE]%n%n

57 # Log Factor 5 Appender

58 log4j.appender.LF5_APPENDER=org.apache.log4j.lf5.LF5Appender

59 log4j.appender.LF5_APPENDER.MaxNumberOfRecords=2000

61 # 发送日志给邮件

62 log4j.appender.MAIL=org.apache.log4j.net.SMTPAppender

63 log4j.appender.MAIL.Threshold=FATAL

64 log4j.appender.MAIL.BufferSize=10

65 log4j.appender.MAIL.From=yyflyons@163.com

66 log4j.appender.MAIL.SMTPHost=www.wusetu.com

67 log4j.appender.MAIL.Subject=Log4J Message

68 log4j.appender.MAIL.To=yyflyons@126.com

69 log4j.appender.MAIL.layout=org.apache.log4j.PatternLayout

70 log4j.appender.MAIL.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

使用Log4j的时候，总是出现

log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).

log4j:WARN Please initialize the log4j system properly.

解决方案：

把上面详细配置的log4j.rootLogger=CONSOLE,FILE

改为log4j.rootLogger=DEBUG,CONSOLE,FILE，你就发现，控制台信息又回来了

2.加载配置文件

3.使用logger日志文件

具体示例如下所示：

（1）Logger4j配置文件：

### set log levels ###

log4j.rootLogger = info,daqAppender,D,outAppender

#log4j.rootLogger = DEBUG,CONSOLE,FILE

log4j.appender.D = org.apache.log4j.ConsoleAppender

log4j.appender.D.Target = System.out

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

log4j.appender.daqAppender =

org.apache.log4j.DailyRollingFileAppender

log4j.appender.daqAppender.File = logs/log.log

log4j.appender.daqAppender.Append = true

log4j.appender.daqAppender.Threshold = info

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

log4j.appender.daqAppender.layout.ConversionPattern=

%-d{yyyy-MM-dd HH:mm:ss}[%t:%r ]-[ %p]%m%n

log4j.appender.outAppender =

org.apache.log4j.DailyRollingFileAppender

log4j.appender.outAppender.File = logs/error.log

log4j.appender.outAppender.Append = true

log4j.appender.outAppender.Threshold = ERROR

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

log4j.appender.outAppender.layout.ConversionPattern=

%-d{yyyy-MM-dd HH\:mm\:ss}[%t\:%r ] -[%p ]%m%n

（2）加载配置文件

URL pa =

ClassLoader.getSystemResource("resources/log4j.properties");

PropertyConfigurator.configure(pa);

（3）使用logger4j输出日志

Loggers.daqlog.info("日志参数加载--info--");

该Loggers日志类如下所示：

import org.apache.log4j.Logger;

public classLoggers{

public staticLoggerdaqlog=Logger.getLogger("daqAppender");

public staticLoggeroutlog=Logger.getLogger("outAppender");

}

Sue remark：上面的示例是自定义的，

定义日志文件输出的位置：

log4j.appender.outAppender.File = logs/error.log

log4j.appender.daqAppender.File = logs/log.log

定义日志的级别：

log4j.appender.outAppender.Threshold = ERROR

log4j.appender.daqAppender.Threshold = info

定义日志的布局：

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

定义日志输出的格式：

log4j.appender.outAppender.layout.ConversionPattern=

%-d{yyyy-MM-dd HH\:mm\:ss}[%t\:%r ] -[%p ]%m%n

标识的意思：

# %c 输出日记信息所属的类的全名

# %d 输出日记时间点的日期或时间，默许格式为ISO8601，也可以或许在厥后指定格式，比如：%d{yyy-MM-ddHH:mm:ss}，输出近似：2002-10-#18-22：10：28

# %f 输出日记信息所属的类的类名

# %l 输出日记事件的产生地位，即输出日记信息的语句处于它地点的类的第几行

# %m 输出代码中指定的信息，如log(message)中的message

# %n 输出一个回车换行符，Windows平台为“”，Unix平台为“”

# %p 输出优先级，即DEBUG，INFO，WARN，ERROR，FATAL。假定是调用debug()输出的，则为DEBUG，依此类推

# %r 输出自利用启动到输出该日记信息所破钞的毫秒数

# %t 输生产生该日记事件的线程名

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