log4j android

This article is translated by Importnew-jaskey from javarevisited. Welcome to join the translation team. Reproduced please see at the end of the request.Every Java programmer knows that logs are critical to any Java application, especially server-side programs, and many programmers are already familiar with various log libraries such as java.util.logging, Apache log4j, and Logback. But if you don't know slf4j(Simple logging facade for Java), then it's

LOG4J's API package uses Apache software licenses and is released under a fully fledged open source license certified by the Open Source Initiative.The latest version of log4j, including full source code, class files and documentation can be found here http://logging.apache.org/log4j/.Download apache-log4j-x.x.x.tar.gz to do the following:Step 1:Unzip and decompr

Method 1. The solution is to replace the absolute path with the relative path. In fact, the fileappender of log4j itself has such a mechanism, such as: log4j. appender. logfile. File =$ {workdir}/logs/APP. Log"$ {Workdir}/" is a variable and will be replaced by the value of "workdir" in system property. In this way, you can use system. setproperty ("workdir", workdir); To set the root path before loading th

First need to download log4j package, the current use of the most is still log4j 1.2, although Log4j 2 has been released, Log4j 1.2: http://logging.apache.org/log4j/1.2/download.htmlDownload complete decompression, log4j is a very

Transfer from http://www.jb51.net/article/41001.htm1 log4j Configuration Instructions1.1 Configuration FilesLog4j can be dynamically set through the Java program, the obvious disadvantage of this way is: if you need to modify the log output level and other information, you must modify the Java file, and then recompile, it is troublesome;Log4j can also be set by configuration file, currently supports two for

For log4j, it is generally used as long as you save the following content as a property file:1#log4j. rootlogger=Debug,a1,r2Log4j.rootlogger=Info,a1,r3log4j.appender.a1=Org.apache.log4j.ConsoleAppender4log4j.appender.a1.layout=Org.apache.log4j.PatternLayout5Log4j.appender.a1.layout.conversionpattern=%-d{yyyy-mm-dd hh:mm:ss,sss} [%c]-[%p]%m%N6 7Log4j.appender.r=Org.apache.log4j.RollingFileAppender8#

replace, avoid old write logger.isxxxenabled this helpless judgment, bring performance improvement see: Http://www.slf4j.org/faq.html#logging_performance.2.OSGI mechanism better compatible supportA picture wins thousands of words, a figure on the official website:From can find, choose still a lot of.Logback: As a general-purpose, fast and flexible log framework, lack is a complete implementation of the new log system as an alternative to log4j and sl

Directory First, log4j configuration Second, LOG4J2 configuration Project has been on the line for a long time, the project is using the log4j 1.x version, the original log can also be normal record, but operation and maintenance complained that your log is too large, catalina.out log output is infinite, so that some applications appear server storage alarm, so we recommend: "Appl

The log is an integral part of the application software, and the Apache Open source project log4j is a powerful log component that provides easy logging. On the Apache website: jakarta.apache.org/log4j can download the latest version of the log4j package for free. An example of getting Started 1. Create a new Java project, import package

Before using log4j is to take someone else to write good use, today carefully looked under how to configure. Http://blog.sina.com.cn/s/blog_5ed94d710101go3u.html#################################################################################① configures the root logger with the following syntax:##log4j. Rootlogger = [Level],appendername,appendername2,...#level是日志记录的优先级, divided into Off,trace,debug,info,wa

Log4j is an open source project for Apache. By using log4j, programmers can control the destination of log information delivery, including consoles, files, GUI components, and NT event loggers, and can control the output format of each log, or control the log generation process more carefully by defining the level of each log message. The following code is an example://