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SpringBoot uses logback by default, but there is a higher performance logging implementation framework log4j2Why log4j2Compared with other log systems, log4j2 has less data loss; The performance of disruptor technology is more than 10 times higher than that of logback in multi-threaded environment; Using jdk1 5 concurrency, which reduces the oc ...

The Remote Code Execution Vulnerability of log4j2 [cve-2021-44228] exposed on December 8, 2021 can be called an epic nuclear bomb vulnerability. Although after such a long time, most of the relevant vulnerabilities in the current network have been repaired, they can still be found... Many leaders and research institutions on the Internet have a ...

1. New features of spring 5 framework The code of the whole spring 5 framework is based on Java 8, and the runtime is compatible with JDK9. Many classes and methods that are not recommended are deleted from the code base. (new feature 1) 2. Spring 5 integrates Log4j2 Version (new feature 2) The Spring 5 framework comes with a gener ...

1, Foreword The first thing to understand is: SpringBoot - the bottom layer is the Spring framework, which uses JCL (commons logging) by default‘ SpringBoot uses SLF4j and logback. SLF4j is just a facade log. It only defines the interface and does not implement it. This is also to meet the polymorphic log implementation. Common logback, ...