slf4j

How to get back MDC “inheritance” with modern logback?

由 白昼怎懂夜的黑 提交于 2019-12-21 04:55:31
问题 After going back to an older project and getting around to update its dependencies I had to realize that logback does not anymore propagate MDCs to children since version 1.1.5 : https://github.com/qos-ch/logback/commit/aa7d584ecdb1638bfc4c7223f4a5ff92d5ee6273 This change makes most of the logs nigh useless. While I can understand the arguments given in the linked issues, I can not understand why this change could not have been made in a more backwards compatible manner (as is generally usual

Dependency management for SLF4J and Logback

由 跟風遠走 提交于 2019-12-21 03:49:13
问题 I'd like to start using SLF4J with Logback. I read over Logback's online documentation and am now ready to add the JARs to my repo and try it out. But I'm at a loss! What JARs do I need? I downloaded that latest SLF4J (1.7.5) and expected to see something like slf4j-logback.jar , but don't see anything of the sorts. I've read that Logback contains a "native implementation" of SLF4J, but don't know exactly what this means, or if it also implies that I don't even need slf4j-api-1.7.5.jar on the

Logback: modify message via filter?

由 非 Y 不嫁゛ 提交于 2019-12-21 03:42:22
问题 It it possible to modify a log event after matching a filter? I've got an web container (Jersey) that logs uncaught exceptions at the ERROR level. But, for certain exceptions (EofException) throw by the server (Jetty), I'd like to log them at a lower level (INFO). I can drop those messages entirely using a Logback filter that matches on the exception type (EofException). But I haven't found a supported method to modify the log event, e.g., change the log level. 回答1: You can simulate this

Redirecting SLF4J log to TextArea in JavaFX

由 狂风中的少年 提交于 2019-12-21 02:46:29
问题 I would like to show errors logged by SLF4J in TextArea in JavaFX. What I have so far is an appender in logback-test.xml : <appender name="err" class="logtest.AppTA"> <filter class="logtest.ErrFilter" /> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> TextArea ready to receive stream: public class Output extends OutputStream{ private final TextArea ta; public Output(TextArea ta) { this.ta = ta; } @Override public void write(int b) throws

Spring-Boot日志

由 折月煮酒 提交于 2019-12-20 23:56:30
title: Spring Boot日志 catalog: true date: 2019-09-23 13:35:41 subtitle: SpringBoot日志 header-img: “/img/article_header/article_header.png” tags: Spring Boot catagories: SpringBoot ​ 一.日志框架 市面上的日志框架； JUL、JCL、Jboss-logging、logback、log4j、log4j2、slf4j… 日志门面 （日志的抽象层） 日志实现 JCL（Jakarta Commons Logging） SLF4j（Simple Logging Facade for Java） jboss-logging Log4j JUL（java.util.logging） Log4j2 Logback 左边选一个门面（抽象层）、右边来选一个实现； 日志门面： SLF4J； 日志实现：Logback； SpringBoot：底层是Spring框架，Spring框架默认是JCL SpringBoot选用的是SLF4J和logback 二.SLF4J使用 1.如何在系统中使用SLF4j 日志记录方法不应该直接调用日志的实现类，二十调用日志抽象层里面的方法； 给系统导入SLF4j的jar和logback的实现jar

Android best logger for logging into file

由 余生长醉 提交于 2019-12-20 16:23:37
问题 What is the best logger framework which perfectly use in Android system for logging text into file? I tried to use SLF4J-android but I got an exception 04-29 12:58:57.604: E/AndroidRuntime(372): java.lang.NoClassDefFoundError: org.slf4j.LoggerFactory here is my code: public class Main extends TabActivity { private static final Logger log = LoggerFactory.getLogger(Main.class); I added the slf4j-android-1.6.1-RC1.jar into build path What will be the problem? 回答1: slf4j-android only supports

LoggerFactory.getLogger(ClassName.class) vs LoggerFactory.getLogger(this.getClass().getName())

由 时光毁灭记忆、已成空白 提交于 2019-12-20 12:05:35
问题 I'm trying to improve my optimization skills in Java. In order to achieve that, I've got an old program I made and I'm trying my best to make it better. In this program I'm using SL4J for logging. To get the logger I did: private static final Logger logger = LoggerFactory.getLogger(this.getClass().getName()); At the time I wrote the code, I thought this was the best option, because I remove a reference to the class name(which may be refactored). But now I'm not so sure anymore... private

LoggerFactory.getLogger(ClassName.class) vs LoggerFactory.getLogger(this.getClass().getName())

由 好久不见. 提交于 2019-12-20 12:05:34
问题 I'm trying to improve my optimization skills in Java. In order to achieve that, I've got an old program I made and I'm trying my best to make it better. In this program I'm using SL4J for logging. To get the logger I did: private static final Logger logger = LoggerFactory.getLogger(this.getClass().getName()); At the time I wrote the code, I thought this was the best option, because I remove a reference to the class name(which may be refactored). But now I'm not so sure anymore... private

(三)SpringBoot与日志

由 浪子不回头ぞ 提交于 2019-12-20 11:43:47
1.日志框架 市面上的日志框架: JUL、JCL、Jboss-logging、logback、log4j、log4j2、slf4j... 日志门面(日志的抽象层) 日志实现 JCL(Jakarta Commons Logging) SLF4j(Simple Logging Facade for Java) jboss-logging Log4j JUL(java.util.logging) Log4j2 Logback 左边选一个门面(抽象层)、右边来选一个实现; 日志门面:SLF4j 日志实现:Logback SpringBoot:底层是Spring框架,Spring框架默认是用JCL; 　　 SpringBoot选用SLF4j和logback 2.SLF4j使用 1.如何在系统中使用SLF4j 以后开发的时候,日志记录方法的调用,不用改来直接调用日志的实现类,而是调用日志抽象层里面的方法; 给系统里面导入slf4j的jar和logback的实现jar 1 import org.slf4j.Logger; 2 import org.slf4j.LoggerFactory; 3 4 public class HelloWorld { 5 public static void main(String[] args) { 6 Logger logger = LoggerFactory

How to get liquibase to log using slf4j?

由 扶醉桌前 提交于 2019-12-20 11:04:18
问题 A lot of people are unsure how to fix logging for liquibase, either to the console or file. Is it possible to make liquibase log to slf4j? 回答1: There is, but it is a little bit obscure. Quoting Fixing liquibase logging with SLF4J and Log4J: There's The Easy Way , by dropping in a dependency: <!-- your own standard logging dependencies --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.5</version> </dependency> <dependency> <groupId>org.slf4j</groupId
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