slf4j

Intercept Log Messages slf4j

由 ☆樱花仙子☆ 提交于 2020-01-02 01:05:16
问题 I have an application which uses slf4j as the logging facade. Now I would like to intercept all the error messages before the transfer is handed out to the underlying logging system. Is it possible to do that for slf4j? I looked through the documentation and see that we can change the Appenders in the implementation (like log4j) to achieve this but can we do this at the facade level itself? The intercept does basic stuff like incrementing a global counter for the number of error messages etc.

Make Akka aware of Play's logback configuration

由 元气小坏坏 提交于 2020-01-01 09:28:11
问题 How do I make Akka aware of Play's logback config (application-logger.xml)? In my case it is completely ignored: The log is ONLY printed to stdout. I expect it to be logged to the File-Appender defined in application-logger.xml It does not make a difference if I rename application-logger.xml to logback.xml. Actor-class: class Dispatcher extends Actor with ActorLogging { // prints to stdout ONLY: log.error("[akka-logger] dispatch started...") } conf/application.conf: play { akka { #log-config

Maven Spring Boot Failed to instantiate SLF4J LoggerFactory Reported exception:

由 我的梦境 提交于 2020-01-01 05:19:27
问题 I am following the tutorial https://spring.io/guides/gs/actuator-service/ And when I try to run the App I get: Failed to instantiate SLF4J LoggerFactory Reported exception: java.lang.NoClassDefFoundError: ch/qos/logback/core/joran/spi/JoranException at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150) at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124) at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412) at org.slf4j.LoggerFactory.getLogger

Springboot 包冲突处理办法

由 人走茶凉 提交于 2020-01-01 01:03:28
有一次配置好springboot项目启动后，忽然发现有下边的警告： SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/E:/mavenJarOnline/ch/qos/logback/logback-classic/1.1.9/logback-classic-1.1.9.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/E:/mavenJarOnline/org/slf4j/slf4j-log4j12/1.7.22/slf4j-log4j12-1.7.22.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder] 原因分析：   上边的大概意思是说logback-classic

springboot整合elasticsearch时，slf4j版本冲突

由 99封情书 提交于 2020-01-01 01:03:15
使用springboot整合elasticsearch时，自带的logback和其他jar自身引入的slf4j-simple产生了冲突 SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/D:/Program%20Files/maven/repository/org/slf4j/slf4j-simple/1.7.25/slf4j-simple-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:/Program%20Files/maven/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl

如何解决使用Gradle时出现的jar包冲突

由 戏子无情 提交于 2020-01-01 01:02:56
前言 在我之前使用Gradle的博文中已经提到，Gradle对依赖的管理是比较智能的，如果有两个包依赖于相同的包，而版本不同的时候，Gradle会进行自动的选择，从而避免jar包的冲突。 也就是说，在理论上使用Gradle一般情况下，不会出现jar包冲突，那么为什么会有今天这篇博文呢？ Gradle可以帮你管理的是版本不同但是包相同的依赖。但是如果两个原本就不同的依赖之间互相发生冲突，这样的冲突Gradle就不能自动帮你完成了，因为它也不知道你需要哪一个。 问题描述 我这边以我出现的冲突为例： 项目启动的时候，在控制台出现下述错误 SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/D:/workSoftware/gradleRepository/caches/modules-2/files-2.1/org.slf4j/slf4j-log4j12/1.7.25/110cefe2df103412849d72ef7a67e4e91e4266b4/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:

Configuring Grails 3 for Log4j2

由 ♀尐吖头ヾ 提交于 2019-12-31 14:55:19
问题 We would like to use Log4j2 as the log binding with grails 3. From what I can figure out so far. We have many subordinate dependencies that use a variety of loggers, so we need to use the SLF4J API. Then, instead of letting grails / groovy / spring re-direct the SLF4J API to the Logback binding, we need to re-direct each to the Log4j2 binding. Since grails 3 uses the Logback binding, I am planning to go through each dependency in the build.gradle, exclude the Logback binding, and include the

Configuring Grails 3 for Log4j2

由 梦想与她 提交于 2019-12-31 14:55:17
问题 We would like to use Log4j2 as the log binding with grails 3. From what I can figure out so far. We have many subordinate dependencies that use a variety of loggers, so we need to use the SLF4J API. Then, instead of letting grails / groovy / spring re-direct the SLF4J API to the Logback binding, we need to re-direct each to the Log4j2 binding. Since grails 3 uses the Logback binding, I am planning to go through each dependency in the build.gradle, exclude the Logback binding, and include the

Suppress java util logging from 3rd party jar

由 佐手、 提交于 2019-12-30 15:01:03
问题 I am getting tons of info log messages from a 3rd party jar in my eclipse console. Cracking open the jar I see that it uses java.util.logging. I would like to set the output level for their jar to WARNING. I have tried using the VM argument of -Djava.util.logging.config.file=pathToMy/JUL.properties where the contents of the file are: handlers=java.util.logging.ConsoleHandler .level=WARNING java.util.logging.ConsoleHandler.level=WARNING Unfortunately, that made no difference in the output. If

transmittable-thread-local在slf4j中解决MDC线程池中上下文传递

由 别说谁变了你拦得住时间么 提交于 2019-12-30 11:08:04
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> transmittable-thread-local以下简称：TTL 根据InheritableThreadLocal在线程池中上下文传递的问题可以知道这个threadLocal的值传递，在父子线程之间若使用了线程池的技术，会导致子线程的threadLocal信息错乱。 根据分布式追踪系统场景下，如何使用TTL 知道ttl的实现原理，通过线程池的封装，threadLocal的继承实现了traceId的传递，采用weakHashMap取代引用计数的方法实现了GC的回收防止内存泄漏。 以下具体问题具体分析，给出的是以agent方式代码无侵入接入 TTL描述了四种场景 分布式跟踪系统 日志收集记录系统上下文 Session级Cache 应用容器或上层框架跨应用代码给下层SDK传递信息 分布式跟踪系统 snowball-common里的traceId是不是TTL推荐的分布式追踪系统场景下，如何使用TTL ，根据issue的描述，文章讲的是分布式追踪相关的设计和ttl在其中的应用，而在snowball-common的问题里，是关于slf4j的MDC问题，若继续探究请进入：APM 模块 日志收集记录系统 根据InheritableThreadLocal在线程池中上下文传递的问题
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