How to create separate log file for each module using RoutingAppender and MDC (Mapped Diagnostic Context) in log4j2/slf4j

Introduction In this example we will see how to create or generate separate log file module-wise or for each separate functionality using RoutingAppender in log4j2 with the help of ThreadedContext or MDC. MDC or Mapped Diagnostic Context is a lighter technique consists of uniquely stamping each log request servicing a given client. To uniquely stamp each request, the user puts contextual information into the MDC. In our previous example we have seen how to configure log4j2 for Java, Spring and Spring Boot applications but here we will control multiple log…

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How to configure log4j2 in Java, Spring and Spring Boot Applications

Introduction In this tutorial I will show you how to configure log4j2 in Java, Spring and Spring Boot applications. The same log4j2 configuration will work for Java, Spring and Spring Boot applications. I am not going to show you how to use logback API in Spring Boot application, instead I will exclude logback API from the Spring Boot application. I am going to use log4j2 with slf4j for Java, Spring and Spring Boot applications. You can even use spring-boot-starter-log4j2 API instead of log4j2 with slf4j for Spring Boot application. This…

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Log4j Configurations – Controlling Logging to Multiple Files

Introduction The purpose of inserting log statements into the code is a low-tech method for debugging it. It may also be the only way because debuggers are not always available or applicable. This is often the case for distributed applications. Features of Log4j We can enable logging at runtime without modifying the application binary. We can control the behavior of logging by editing only the configuration file, no need to touch the application binary. Developer are always clear with detailed context for application failures. Log4j has one of the distinctive…

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