log4j2

log4j2 dynamic file name based on command line argument

由 一个人想着一个人 提交于 2020-01-30 11:31:09
问题 We are using a fairly simple log4j2.xml configuration file to log to stdout. However there are cases where we want to change this configuration programmatically after the start of the application to use a log file that is handed over on the command line. For this I followed the suggestion on the log4j2 homepage and wrote the following method static void divertLogging(String logFile, Level level) { ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory

Log4j2 Custom appender: ERROR Attempted to append to non-started appender

由 一笑奈何 提交于 2020-01-30 05:00:35
问题 I have created a custom appender in log4j2. While using the custom appender, I am getting the following error: "ERROR Attempted to append to non-started appender". Any help is appreciated. 回答1: Log4j 2 checks for each log event that the appender is in a useable state. The error you are seeing is that Log4j detects that the appender is not ready to be used. Some appenders need to do preparation before they can be used. The start() lifecycle method is the place where appenders can do

different levels (including custom level) on different appenders in log4j2

由 房东的猫 提交于 2020-01-26 04:30:31
问题 I wanna to log special messages in 2 of my classes into DB and also wanna to write all of my program logs on console.In order to achieve this i defined a custom level(managerLogsLevel) with intLevel=50 for JDBC appender,but i couldn't set the log4j2.xml to do my exact purpose.here is my xml file: <CustomLevels> <CustomLevel name="managerLogsLevel" intLevel="50" /> </CustomLevels> <Appenders> <Console name="Console" target="SYSTEM_OUT"> <PatternLayout pattern="%d{yyyy-MMM-dd hh:mm:ss a }

Proper format for log4j2.xml RollingFile configuration

由 一笑奈何 提交于 2020-01-25 03:07:26
问题 I am getting the following exception in my glassfish 4 application that uses log4j2: SEVERE: ERROR StatusLogger Invalid URL C:/glassfish4/glassfish/domains/domain1/config/log4j2.xml java.net.MalformedURLException: Unknown protocol: c I have the following section in my log4j2.xml: <RollingFile name="RollingFile" fileName="C:/glassfish4/glassfish/domains/domain1/logs/ucsvc.log" filePattern="C:/glassfish4/glassfish/domains/domain1/logs/$${date:yyyy-MM}/ucsvc-%d{MM-dd-yyyy}-%i.log"> I understand

Websphere Liberty: How to specify log4j2 configuration location?

由 不羁的心 提交于 2020-01-24 17:27:25
问题 I'm trying to tell Websphere Liberty where is located my log4j2.xml file, but it isn't working. In my file jvm.options I configure: -Dlog4j.configurationFile=file:///${server.config.dir}/log4j2.xml but it looks like Liberty does not understand the variable ${server.config.dir} in the jvm.options file. The file is in the same directory of the server.xml file. How would I specify the log4j2.xml location for Liberty? 回答1: I think it should be possible by creating a Library entry in your server

Different level of logs in different log files

由 六眼飞鱼酱① 提交于 2020-01-22 16:14:44
问题 How can we write a simple log4j2.xml file with different levels of logs going into different files? For example we have error logs any info logs I need to push all error log messages into one log file and all info log messages into another file. I want that info message in InfoController.log file and error message in LoginController.log file How can i do it? 回答1: Finally got the answer by doing this i got the logs in different files. <Loggers> <logger name="com.mvc.login" level="info"

How do I conditionally add log4j2 appender depending on java system property?

由 只愿长相守 提交于 2020-01-22 15:30:09
问题 I'm trying to figure out how I can add an appender to a logger dependent on whether a java system property is given / set. So let's say I have a basic configuration like this: <Logger name="myLogger" level="info" additivity="false"> <AppenderRef ref="myAppender1" /> <AppenderRef ref="myAppender2" /> </Logger> So now I'd like to figure out a way to conditionally only add the 2nd appender if I provide a parameter -PaddAppender2. Something like this: <Logger name="myLogger" level="info"

SpringBoot的日志

由 狂风中的少年 提交于 2020-01-21 16:49:32
Spring Boot 默认使用LogBack日志系统，如果不需要更改为其他日志系统如Log4j2等，则无需多余的配置。 要使用LogBack，原则上是需要添加dependency依赖的。但因为新建的Spring Boot项目一般都会引用 spring-boot-starter 或者 spring-boot-starter-web ，而这两个起步依赖中都已经包含了对于spring-boot-starter-logging的依赖，所以，无需额外添加依赖。 <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> 日志设置 日志的相关设置可以写在application中，也可以单独写在配置文件中，后面出现的设置会覆盖前面的设置。 SpringBoot 的日志系统默认将日志打印到控制台上。如果需要输出到文件中，需要对 logging.path 和 logging.file 进行修改。 logging.path=/Users/jackie/workspace/rome/ #该属性用来配置日志文件的路径 logging.file=springbootdemo.log #该属性用来配置日志文件名 格式的设置是通过pattern来实现的

Log4j2 - configuring

由 你说的曾经没有我的故事 提交于 2020-01-21 03:54:05
问题 I am trying to adopt Log4j2 in my new project, but I get my logs in catalina.out , and the first one is always: ERROR StatusLogger Unable to locate a logging implementation, using SimpleLogger . It seems that I have done everything according to Log4j2 docs, but still. Here is what I have actually done: added log4j-api-2.0-beta3.jar to my project created a log4j2.xml file and put it in a location that is on the classpath (currently, in /usr/local/tomcat/home/lib . In fact, I took a sample file

How to log within shutdown hooks with Log4j2?

由 倾然丶 夕夏残阳落幕 提交于 2020-01-19 01:15:30
问题 Log4j2 also uses shutdown hooks to end it's services. But of course I want to log throughout the whole lifecycle of my application - shutdown included. With Log4j this was no problem. Now it seems to be impossible. Logging shuts down, while my application is still working on it. Has anyone some hope for me? Best regards Martin 回答1: As of 2.0-beta9 this is now configurable in xml <configuration ... shutdownHook="disable"> Considering its now disabled, I guess I need to manually shutdown the
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