log4j

Can Log4j 1.2 What's the difference between RollingFileAppender and FileAppender?

由 橙三吉。 提交于 2019-12-07 01:42:24
问题 How do we know which is the right Appender to use between RollingFileAppender and FileAppender? 回答1: You may want to read the Apache Log4j 1.2.17 API: org.apache.log4j.FileAppender FileAppender appends log events to a file. org.apache.log4j.RollingFileAppender RollingFileAppender extends FileAppender to backup the log files when they reach a certain size . 来源： https://stackoverflow.com/questions/25061780/can-log4j-1-2-whats-the-difference-between-rollingfileappender-and-fileappender

LINUX下JBOSS的安装及配置

由 寵の児 提交于 2019-12-07 01:10:29
环境： Linux AS5 Update3 JBOSS： http://www.jboss.org/jbossas/downloads/ 下载 jboss-5.1.0.GA.tar.gz(或者其他版本，本文以jboss-5.1.0.GA举例) JDK： http://java.sun.com/javase/downloads/index.jsp 下载：jdk-6u17-linux-i586.bin(或者其他版本，本文以jdk-6u17-linux-i586举例) 软件 都上传至服务器/usr/local/目录下 1、环境配置 A、字符集配置 设定系统语言环境：/etc/sysconfig/i18n为zh_CN.GBK vi /etc/sysconfig/i18n LANG="zh_CN.GBK" SUPPORTED="zh_CN.GBK:zh:zh_CN.GB2312:zh:zh_CN.UTF-8:zh_CN:zh:en_US.UTF-8:en_US:en" SYSFONT="latarcyrheb-sun16" B、修改字符集设置：/etc/profile里面添加NLS_LANG设置 #vi /etc/profile export NLS_LANG='SIMPLIFIED CHINESE_CHINA'.ZHS16GBK C、检查 服务器 的时区与时间是否设定正确：正确时区应设定为

coloring slf4j/log4j output in eclipse

由 我怕爱的太早我们不能终老 提交于 2019-12-07 01:04:06
问题 I am trying to use logback-beagle in eclipse/kepler (java). As I understand it is not currently supported as listed below(?). http://marketplace.eclipse.org/content/logback-beagle#.Uv1cGPldWK8 I still went ahead and installed the plugin and dont see it under windows-preferences. Is there an alternative to get similar functionality (of color coding and navigating from log output of slf4j/log4j in eclipse) Or can I make beagle plugin work for eclipse(?). I dont understand why eclipse want to

log4j.properties not working in executable jar

由 陌路散爱 提交于 2019-12-07 01:02:29
问题 I'm using eclipse and I have placed log4j.properties in the project directory and I access it by calling PropertyConfigurator.configure("log4j.properties"); this works fine in Eclipse, but when I extract the project as an executable Jar and run it on another machine, I get an error saying that it can't find log4j.properties. What is the solution to this? 回答1: What's happening PropertyConfigurator.configure(String) loads and reads a file from the file-system. Your property file is in the

concurrent log4j

由 萝らか妹 提交于 2019-12-07 00:57:34
问题 I have my own logging engine which writes the logs on a separate thread with a blocking queue. For the sake of using "standard software" I am thinking about switching to log4j. I don't want my highly concurrent software to be slowed down by log commands that write everything to disk as some as the command is called. Can log4j be used as a dumpster instead? 回答1: Log4j is the logging implementation on most JavaEE app-servers out there, so that's a good advert for its concurrency abilities.

option for ant junit task to dump console output on-the-fly

由 点点圈 提交于 2019-12-07 00:42:13
问题 I have an issue when using the Ant junit task to launch my non-regression tests: the console output is only dumped when the test end. It causes some OOM when there are too many logs with respect to the process Xmx and means that if the process dies (or is killed by a watchdog) before its end the logs are lost. <junit fork="true" forkmode="once" timeout="1200000" haltonfailure="no" outputtoformatters="yes" failureProperty="test.failure" dir="${project.test.dir}"> <junit-opts/> <formatter type=

How to bind SLF4J with Log4J?

由 故事扮演 提交于 2019-12-07 00:33:34
问题 I am trying to setup a project with slf4j + log4j, but the damn thing just doesn't work... I keep getting exception: Failed to instantiate SLF4J LoggerFactory Reported exception: java.lang.NoClassDefFoundError: org/apache/log4j/Level at org.slf4j.LoggerFactory.bind(LoggerFactory.java:129) at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:108) at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:302) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:276) at

Log to database with LogBack

由 一世执手 提交于 2019-12-07 00:30:04
Using log4j, I used to have an appender that logs directly to one of the tables in my database. The appender was as follows: <appender name="DATABASE_LOG" class="org.apache.log4j.jdbc.JDBCAppender"> <param name="URL" value="jdbc:postgresql://localhost/registrationdb" /> <param name="Driver" value="org.postgresql.Driver"/> <param name="User" value="postgres"/> <param name="Password" value="********/> <layout class="org.apache.log4j.EnhancedPatternLayout"> <param name="ConversionPattern" value="INSERT INTO user (user_id,creation_datetime,comment,user_type) VALUES ('%X{userId}','%d{yyyy-MM-dd HH

Asynchronous non-blocking remote logging in Java?

由 牧云@^-^@ 提交于 2019-12-06 23:14:29
问题 Is there a lightweight logging framework/server I can use to setup remote logging in Java? I know log4j has SocketAppenders but a) I want a library that is more out of the box where I can simply run a log server, b) I want the logging calls to be completely asynchronous non-blocking from the rest of the code and c) A nice web based dashboard/viewer on the log-server would be also nice 回答1: You could use log4j with a SyslogAppender and use some tool for viewing the syslog(-ng). Use the async

Log4j、Log4j 2、Logback、SFL4J、JUL、JCL的比较

由 冷暖自知 提交于 2019-12-06 22:12:57
之前就知道有好几种日志框架，但是一直都是听别人讲，在什么时候该用何种logger，哪种logger比较好……一直对 Log4j、Jakarta Commons-Logging、java.util.logging、SLF4J、Logback它们之间的区别已经各自的优势不是很了解，这个周末决 定沉下心来好好研究一下。一下这篇文章，就是我在对比了这几种日志框架之后的一些收获，希望能给大家带来一点收获。 Log4j Log4j = Log for Java. author： Ceki Gülcü license： Apache License V2.0 Log4j是Apache的一个开放源代码项目，通过使用Log4j，我们可以控制日志信息输送的目的地是控制台、文件、数据库等；我们也可以控制每一条日志的输出格式；通过定义每一条日志信息的级别，我们能够更加细致地控制日志的生成过程。 Log4j有7种不同的log级别，按照等级从低到高依次为：TRACE<DEBUG<INFO<WARN<ERROR<FATAL<OFF。如果配置为OFF级别，表示关闭log。 Log4j支持两种格式的配置文件：properties和xml。包含三个主要的组件：Logger、appender、Layout。 Example for log4j 1.2 <?xml version="1.0" encoding="UTF
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