log4j2

Log4j2 could not find a logging implementation with Spring Boot

寵の児 提交于 2019-12-29 07:50:53
问题 I'm getting this error trying to use log4j2 with spring boot. ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console... I'm have followed this guide: http://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html#howto-configure-log4j-for-logging - and also added the two log4j2-dependencies from https://logging.apache.org/log4j/2.x/maven-artifacts.html My dependency:tree looks like

How to write different logs in different files with log4j2 (MDC in xml)?

泪湿孤枕 提交于 2019-12-28 04:21:28
问题 Now I'm using structure like this: Appender: <RollingFile name="user.log" append="true" fileName="users/%MDC{USERNAME}.txt" filePattern="users/archive/%MDC{USERNAME}-%d{MM-dd-yyyy}-%i.txt.gz"> <PatternLayout pattern="%-5p %d{MMMM-dd HH:mm:ss} %X: %c - %m%n"/> <Policies> <TimeBasedTriggeringPolicy/> <SizeBasedTriggeringPolicy size="50 MB"/> </Policies> </RollingFile> Logger: <appender-ref ref="user.log"> <ThreadContextMapFilter onMatch="ACCEPT" onMismatch="DENY" operator="or"> <KeyValuePair

【日志框架与全局日志管理】1. 日志框架的简介与选型

最后都变了- 提交于 2019-12-26 14:16:49
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 一、日志框架简介 Spring Boot 默认的日志记录框架使用的是 Logback,此外我们还可以选择 Log4j 和 Log4j2。其中 Log4j 可以认为是一个过时的函数库,已经停止更新,不推荐使用,相比之下,性能和功能也是最差的。logback 虽然是 Spring Boot 默认的,但性能上还是不及 Log4j2,因此,在现阶段,日志记录首选 Log4j2。 当然,在实际项目开发中,我们不会直接调用上面三款日志框架的 API 去记录日志,因为这样如果要切换日志框架的话代码需要修改的地方太多。因此,最佳实践是采用 SLF4J 来进行日志记录,SLF4J 是基于门面模式实现的一个通用日志框架,它本身并没有日志记录的功能,实际的日志记录还是需要依赖 Log4j、logback 或者 Log4j2。使用 SLF4J,可以实现简单快速地替换底层的日志框架而不会导致业务代码需要做相应的修改。SLF4J + Log4j2 是我们推荐的日志记录选型。 在使用 SLF4J 进行日志记录时,通常都需要在每个需要记录日志的类中定义 Logger 变量,如下所示: import org.slf4j.Logger; import org.slf4j.LoggerFactory; @RestController public

How to create separate Log4j2 rolling file appenders and loggers programatically for multiple threads

北城以北 提交于 2019-12-25 09:02:20
问题 I am running my TestNG tests on multiple threads (Appium tests on multiple devices simultaneously) and want to write the test logs on different threads in different files. Here the threads are created automatically before the start of the test flow. So I want to create separate appender and separate logger programatically so that each appender would be attached to its own thread only and then the loggers created in one thread would have the appender created in that thread only. Please let me

IDEA 搭建spring+maven+mybatis+mysql+junit+log4j2

一曲冷凌霜 提交于 2019-12-25 03:55:56
https://www.cnblogs.com/toutou/p/ssm_springmvc.html https://www.cnblogs.com/toutou/p/ssm_springmvc.html 码云地址:https://gitee.com/aaronRhythm/callcenter 遇到问题: 1、log4j修改为log4j2时,Mybatis增加如下配置项将SQL输出到日志:<setting name="logImpl" value="LOG4J2"/>,启动TOMCAT失败。   【解决】:可能是Mybatis版本问题,可在POM添加3.3.0的版本:<mybatis.version>3.3.0</mybatis.version> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> 2、项目启动日志没打印   【解决】:添加下述配置后,就能在项目启动时加载log4j2 <!--加上下述配置后,就能在项目启动是加载log4j2--> <!-- Log4j2监听器 --> <listener> <listener-class

Log4j2 custom plugins not working in EAR

岁酱吖の 提交于 2019-12-25 03:44:09
问题 I am migrating an EAR application from Log4J 1.2.17 to Log4J2 2.4 . Please find below the EAR structure. EAR -- APPLICATION JAR 1 (contains custom plugin) -- APPLICATION JAR 2 -- APPLICATION JAR 3 (contains custom plugin) -- APPLICATION JAR 4 -- APPLICATION WAR 1 -- APPLICATION WAR 2 -- APPLICATION WAR 3 -- OTHER THIRD PARTY APIs -- lib/log4j-api-2.4.jar -- lib/log4j-core-2.4.jar -- lib/log4j-jcl-2.4.jar -- lib/log4j-web-2.4.1.jar -- META-INF/log4j2.xml -- META-INF/MANIFEST.MF (contains all

Single log file for multiple webapps

感情迁移 提交于 2019-12-25 02:52:40
问题 In my tomcat there are multiple webapps deployed and they communicate with each other. Currently they all have their own log file. But when there is some issue comes from call I have to 1st check with the app to whom I made a call and check log file of respective apps involved in the call. So I want that, as all apps is deployed in same tomcat and sharing a common log4j, if a call made to any app then all logs should be in a single log file and no matters how my webapps are involved all error

How to load log4j2.xml via Spring to log CXF inbound outbound request/response xmls

喜你入骨 提交于 2019-12-24 22:09:06
问题 I have log4j.xml in my war which I used to log incoming and outgoing request and responses to a specific log file. This is my log4j.xml <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration debug="true" xmlns:log4j='http://jakarta.apache.org/log4j/'> <appender name="consoleAppender" class="org.apache.log4j.ConsoleAppender"> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d{dd MMM yyyy HH:mm:ss}

Log4j2 custom email subject from Map

好久不见. 提交于 2019-12-24 21:29:03
问题 I've some applications installed to my customers and I configured smtp appender to receive errors email. Unfortunally I need a way to understand from which customer is arriving the email. I'm trying to set a parameter in the map in order to show it as the subject of the email. I can set this parameter only after my app is started and the db is up: String[] parametri = {username}; MapLookup.setMainArguments(parametri); and my log4j2.xml is: <SMTP name="Mailer" subject="${sys:logPath} - ${map:0

Log4j2 custom email subject from Map

冷暖自知 提交于 2019-12-24 21:13:05
问题 I've some applications installed to my customers and I configured smtp appender to receive errors email. Unfortunally I need a way to understand from which customer is arriving the email. I'm trying to set a parameter in the map in order to show it as the subject of the email. I can set this parameter only after my app is started and the db is up: String[] parametri = {username}; MapLookup.setMainArguments(parametri); and my log4j2.xml is: <SMTP name="Mailer" subject="${sys:logPath} - ${map:0