日志 log4j.properties配置详解与实例-全部测试通过

怼烎@ 2021-12-15 08:43 196阅读 0赞

### 文章转载自：[http://blog.sina.com.cn/s/blog\_5ed94d710101go3u.html][http_blog.sina.com.cn_s_blog_5ed94d710101go3u.html] ###

### 感谢作者整理 ###

最近使用log4j写log时候发现网上的写的都是千篇一律，写的好的嘛不全，写的全一点的嘛没有一点格式，看着累。这里把网上收集到的整理了一下，并且全部都在机器上测试成功了。这么好的文档估计没有了吧?

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**\#①配置根Logger，其语法为：**** **  
\#   
\# log4j.rootLogger = \[level\],appenderName,appenderName2,...   
\# level是日志记录的优先级，分为OFF,TRACE,DEBUG,INFO,WARN,ERROR,FATAL,ALL   
\# Log4j建议只使用四个级别，优先级从低到高分别是DEBUG,INFO,WARN,ERROR   
\# 通过在这里定义的级别，您可以控制到应用程序中相应级别的日志信息的开关   
\# 比如在这里定义了INFO级别，则应用程序中所有DEBUG级别的日志信息将不被打印出来   
\# appenderName就是指定日志信息输出到哪个地方。可同时指定多个输出目的【输出目的看第②点】  
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**\#②配置日志信息输出目的地Appender，其语法为： **  
\#   
\# log4j.appender.appenderName = fully.qualified.name.of.appender.class   
\# log4j.appender.appenderName.optionN = valueN   
\#   
\# Log4j提供的appender有以下几种：   
\#   1)org.apache.log4j.**ConsoleAppender**(输出到控制台)   
\#   2)org.apache.log4j.**FileAppender**(输出到文件)   
\#   3)org.apache.log4j.**DailyRollingFileAppender**(每天产生一个日志文件)   
\#   4)org.apache.log4j.**RollingFileAppender**(文件大小到达指定尺寸的时候产生一个新的文件)   
\#   5)org.apache.log4j.WriterAppender(将日志信息以流格式发送到任意指定的地方)   
\#   
\#         a)**ConsoleAppender**选项属性   
\#               -Threshold = DEBUG:指定日志消息的输出最低层次   
\#               -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出   
\#               -Target = System.err:默认值System.out,输出到控制台(err为红色,out为黑色)   
\#   
\#         b)**FileAppender**选项属性   
\#              -Threshold = INFO:指定日志消息的输出最低层次   
\#              -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出   
\#              -File = C:\\log4j.log:指定消息输出到C:\\log4j.log文件   
\#              -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容   
\#              -Encoding = UTF-8:可以指定文件编码格式   
\#   
\#          c)**DailyRollingFileAppender**选项属性   
\#              -Threshold = WARN:指定日志消息的输出最低层次   
\#              -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出   
\#               -File = C:\\log4j.log:指定消息输出到C:\\log4j.log文件   
\#               -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容   
\#              -DatePattern='.'yyyy-ww:每周滚动一次文件,即每周产生一个新的文件。还可以按用以下参数:   
\#                            '.'yyyy-MM:每月   
\#                            '.'yyyy-ww:每周   
\#                            '.'yyyy-MM-dd:每天   
\#                            '.'yyyy-MM-dd-a:每天两次   
\#                            '.'yyyy-MM-dd-HH:每小时   
\#                            '.'yyyy-MM-dd-HH-mm:每分钟   
\#              -Encoding = UTF-8:可以指定文件编码格式   
\#   
\#           d)**RollingFileAppender**选项属性   
\#               -Threshold = ERROR:指定日志消息的输出最低层次   
\#               -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出   
\#               -File = C:/log4j.log:指定消息输出到C:/log4j.log文件   
\#               -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容   
\#               -MaxFileSize = 100KB:后缀可以是KB,MB,GB.在日志文件到达该大小时,将会自动滚动.如:log4j.log.1   
\#               -MaxBackupIndex = 2:指定可以产生的滚动文件的最大数   
\#               -Encoding = UTF-8:可以指定文件编码格式   
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**\#③配置日志信息的格式(布局)，其语法为： **  
\#   
\# log4j.appender.appenderName.layout = fully.qualified.name.of.layout.class   
\# log4j.appender.appenderName.layout.optionN = valueN   
\#   
\# Log4j提供的layout有以下几种：   
\#    5)org.apache.log4j.HTMLLayout(以HTML表格形式布局)   
\#    6)org.apache.log4j.PatternLayout(可以灵活地指定布局模式)   
\#    7)org.apache.log4j.SimpleLayout(包含日志信息的级别和信息字符串)   
\#    8)org.apache.log4j.TTCCLayout(包含日志产生的时间、线程、类别等等信息)   
\#    9)org.apache.log4j.xml.XMLLayout(以XML形式布局)   
\#   
\#        5)HTMLLayout选项属性   
\#             -LocationInfo = TRUE:默认值false,输出java文件名称和行号   
\#             -Title=Struts Log Message:默认值 Log4J Log Messages   
\#   
\#        6)PatternLayout选项属性   
\#             -ConversionPattern = %m%n:格式化指定的消息(参数意思下面有)   
\#   
\#        9)XMLLayout选项属性   
\#             -LocationInfo = TRUE:默认值false,输出java文件名称和行号   
\#   
\# Log4J采用类似C语言中的printf函数的打印格式格式化日志信息，打印参数如下：   
\#     %m 输出代码中指定的消息   
\#     %p 输出优先级，即DEBUG,INFO,WARN,ERROR,FATAL   
\#     %r 输出自应用启动到输出该log信息耗费的毫秒数   
\#     %c 输出所属的类目,通常就是所在类的全名   
\#     %t 输出产生该日志事件的线程名   
\#     %n 输出一个回车换行符，Windows平台为“\\r\\n”，Unix平台为“\\n”   
\#     %d 输出日志时间点的日期或时间，默认格式为ISO8601，也可以在其后指定格式   
\#            如：%d\{yyyy年MM月dd日 HH:mm:ss,SSS\}，输出类似：2012年01月05日 22:10:28,921   
\#     %l 输出日志事件的发生位置，包括类目名、发生的线程，以及在代码中的行数   
\#            如：Testlog.main(TestLog.java:10)   
\#     %F 输出日志消息产生时所在的文件名称   
\#     %L 输出代码中的行号   
\#     %x 输出和当前线程相关联的NDC(嵌套诊断环境),像java servlets多客户多线程的应用中   
\#     %% 输出一个"%"字符   
\#   
\# 可以在%与模式字符之间加上修饰符来控制其最小宽度、最大宽度、和文本的对齐方式。如：   
\#      %5c: 输出category名称，最小宽度是5，category<5，默认的情况下右对齐   
\#      %-5c:输出category名称，最小宽度是5，category<5，"-"号指定左对齐,会有空格   
\#      %.5c:输出category名称，最大宽度是5，category>5，就会将左边多出的字符截掉，<5不会有空格   
\#      %20.30c:category名称<20补空格，并且右对齐，>30字符，就从左边交远销出的字符截掉   
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**\#④指定特定包的输出特定的级别 **  
\# log4j.logger.org.springframework=DEBUG   
\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#   
  
\# OFF,systemOut,logFile,logDailyFile,logRollingFile,logMail,logDB,ALL   
log4j.rootLogger =ALL,systemOut,logFile,logDailyFile,logRollingFile,logMail,logDB   
  
\#输出到控制台   
log4j.appender.systemOut = org.apache.log4j.ConsoleAppender   
log4j.appender.systemOut.layout = org.apache.log4j.PatternLayout   
log4j.appender.systemOut.layout.ConversionPattern = \[%-5p\]\[%-22d\{yyyy/MM/dd HH:mm:ssS\}\]\[%l\]%n%m%n   
log4j.appender.systemOut.Threshold = DEBUG   
log4j.appender.systemOut.ImmediateFlush = TRUE   
log4j.appender.systemOut.Target = System.out   
  
\#输出到文件   
log4j.appender.logFile = org.apache.log4j.FileAppender   
log4j.appender.logFile.layout = org.apache.log4j.PatternLayout   
log4j.appender.logFile.layout.ConversionPattern = \[%-5p\]\[%-22d\{yyyy/MM/dd HH:mm:ssS\}\]\[%l\]%n%m%n   
log4j.appender.logFile.Threshold = DEBUG   
log4j.appender.logFile.ImmediateFlush = TRUE   
log4j.appender.logFile.Append = TRUE   
log4j.appender.logFile.File = ../Struts2/WebRoot/log/File/log4j\_Struts.log   
log4j.appender.logFile.Encoding = UTF-8   
  
\#按DatePattern输出到文件   
log4j.appender.logDailyFile = org.apache.log4j.DailyRollingFileAppender   
log4j.appender.logDailyFile.layout = org.apache.log4j.PatternLayout   
log4j.appender.logDailyFile.layout.ConversionPattern = \[%-5p\]\[%-22d\{yyyy/MM/dd HH:mm:ssS\}\]\[%l\]%n%m%n   
log4j.appender.logDailyFile.Threshold = DEBUG   
log4j.appender.logDailyFile.ImmediateFlush = TRUE   
log4j.appender.logDailyFile.Append = TRUE   
log4j.appender.logDailyFile.File = ../Struts2/WebRoot/log/DailyFile/log4j\_Struts   
log4j.appender.logDailyFile.DatePattern = '.'yyyy-MM-dd-HH-mm'.log'   
log4j.appender.logDailyFile.Encoding = UTF-8   
  
\#设定文件大小输出到文件   
log4j.appender.logRollingFile = org.apache.log4j.RollingFileAppender   
log4j.appender.logRollingFile.layout = org.apache.log4j.PatternLayout   
log4j.appender.logRollingFile.layout.ConversionPattern = \[%-5p\]\[%-22d\{yyyy/MM/dd HH:mm:ssS\}\]\[%l\]%n%m%n   
log4j.appender.logRollingFile.Threshold = DEBUG   
log4j.appender.logRollingFile.ImmediateFlush = TRUE   
log4j.appender.logRollingFile.Append = TRUE   
log4j.appender.logRollingFile.File = ../Struts2/WebRoot/log/RollingFile/log4j\_Struts.log   
log4j.appender.logRollingFile.MaxFileSize = 1MB   
log4j.appender.logRollingFile.MaxBackupIndex = 10   
log4j.appender.logRollingFile.Encoding = UTF-8   
  
\#用Email发送日志   
log4j.appender.logMail = org.apache.log4j.net.SMTPAppender   
log4j.appender.logMail.layout = org.apache.log4j.HTMLLayout   
log4j.appender.logMail.layout.LocationInfo = TRUE   
log4j.appender.logMail.layout.Title = Struts2 Mail LogFile   
log4j.appender.logMail.Threshold = DEBUG   
log4j.appender.logMail.SMTPDebug = FALSE   
log4j.appender.logMail.SMTPHost = SMTP.163.com   
log4j.appender.logMail.From = xly3000@163.com   
log4j.appender.logMail.To = xly3000@gmail.com   
\#log4j.appender.logMail.Cc = xly3000@gmail.com   
\#log4j.appender.logMail.Bcc = xly3000@gmail.com   
log4j.appender.logMail.SMTPUsername = xly3000   
log4j.appender.logMail.SMTPPassword = 1234567   
log4j.appender.logMail.Subject = Log4j Log Messages   
\#log4j.appender.logMail.BufferSize = 1024   
\#log4j.appender.logMail.SMTPAuth = TRUE   
  
\#将日志登录到MySQL数据库   
log4j.appender.logDB = org.apache.log4j.jdbc.JDBCAppender   
log4j.appender.logDB.layout = org.apache.log4j.PatternLayout   
log4j.appender.logDB.Driver = com.mysql.jdbc.Driver   
log4j.appender.logDB.URL = jdbc:mysql://127.0.0.1:3306/xly   
log4j.appender.logDB.User = root   
log4j.appender.logDB.Password = 123456   
log4j.appender.logDB.Sql = INSERT INTOT\_log4j(project\_name,create\_date,level,category,file\_name,thread\_name,line,all\_category,message)values('Struts2','%d\{yyyy-MM-ddHH:mm:ss\}','%p','%c','%F','%t','%L','%l','%m')

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