log4j

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm running a simple Java program from the IntelliJ IDE using the Run->Run menu. It works fine. Now I want to add log4j logging. I added a resources folder under my project root. I added a log4j.properties file in that folder. I changed the code to log something. What is the right way to tell IntelliJ to include the resources folder in the classpath so the properties file is seen? With IntelliJ 8 I could guess like a drunk monkey and eventually get it to work. I have 9 now and I am wholly unsuccessful. I've been trying for an hour. How about

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm migrating log4j 1.2.8 to log4j 2.3. Everything works fine, beside that I'm not finding any any alternative for the PropertyConfigurator . Is there another class to take care of what the PropertyConfigurator did before? 回答1: Maybe this can help you? How do I reconfigure log4j2 in code with a specific configuration file? See the below example. Be aware that this LoggerContext class is not part of the public API so your code may break with any minor release. // import org.apache.logging.log4j.core.LoggerContext; LoggerContext

前言 前面两章节我们介绍了一些日志框架的常见配置及使用实践。一般上，在开发过程中，像 log4j2 、 logback 日志框架都提供了很多 Appender ，基本上可以满足大部分的业务需求了。但在一些特殊需求或者需要将日志进行集中管理(集群部署时，日志是分拆到不同服务器上的，不可能去每一台服务器上去下载文件的，也不便于日志检索)时，就需要自定义 Appender ，将日志集中输出或者其他一些特殊需求。所以本章节就来简单介绍下关于 log4j2 和 logback 的自定义 Appender 知识。 一点知识 编写自定义 Appender 时，我们先来看看 log4j2 和 logback 自带了哪些 Appender ，了解下是否可以满足我们的个性化需求，避免重复制造轮子。 log4j2自带Appender 先看一张 官网 提供的 Appender 说明： 名称 描述 AsyncAppender 使用一个单独线程记录日志，实现异步处理日志事件。 CassandraAppender 将日志信息输出到一个Apache的Cassandra数据库 ConsoleAppender 将日志信息输出到控制台 FailoverAppender 包含其他appenders，按顺序尝试，直至成功或结尾 FileAppender 一个OutputStreamAppender，将日志输出到文件

I am working on an application that will run on OSX and windows. I want the logs to be written to the users home directory. For OSX it will be under the /Users//Library/Application Support/MyApp/log directory, and under windows depending on the version under /Users//AppData/MyApp/log directory. What is the best way I can do this? I have looked around for solutions for this, but nothing helpful or a solution I am comfortable using has come up. Look forward to your inputs. edit: Since the location of the log file depends on the OS, I am hoping to find a run time solution, possibly something like

I have log4j.xml configuration like this: <appender name="MyAppender"class="org.apache.log4j.DailyRollingFileAppender"> <param name="File" value="/logs/custom/my.log"/> ... </appender> However the root directory of my file are the same for a lot of appender. Is there a way to defined "/logs/custom/" as a variable and reused it in all of my appender. Thanks, Sean Neeme Praks UPDATE : The original answer applies to Log4j 1.x Log4j 2.x has much richer support for properties in configuration file, see the Log4j manual about Configuration with properties . Log4j 1.x (the original answer): The only

I am trying to use log4j via commons-logging and having problems if the log4j properties file is not called log4.properties. I get following error: log4j:WARN No appenders could be found for logger (LogMePlease). log4j:WARN Please initialize the log4j system properly. My code is very simple: import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class LogMePlease { static Log l = LogFactory.getLog(LogMePlease.class); public static void main(String [] args) { l.warn("Hello World!"); } } In my class path, i have: commons-logging.properties file which contains