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2025-09-21 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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This article will explain in detail how to solve the problems encountered in log4j upgrade log4j2. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.
Log4j upgrade log4j2 problem 1. Import package org.slf4j slf4j-api ${slf4j.version} org.slf4j jcl-over-slf4j ${slf4j.version} org.apache.logging.log4j log4j-core 2.8.2 org.apache.logging.log4j log4j-slf4j-impl 2.8.2
Note: some packages may rely on log4j, but only log4j2 will be left after the upgrade, and an error will be reported that the class cannot be found, such as:
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
So if these packages do not use the slf4 interface, but must rely on log4j, if you really do not want to import the log4j package, you can only find a toolkit that can replace this package.
Such as:
Com.github.sgroschupf zkclient 0.1 log4j log4j
Replace it with the following package, which is fine:
Com.101tec zkclient 0.10 log4j log4j slf4j-log4j12 org.slf4j II. Create a new log4j2.xml file under src/main/resources
The configuration is as follows
1.7.132.33.3.23.2.4.RELEASE org.apache.logging.log4j log4j-api ${log4j2.version} org.apache.logging.log4j log4j-core ${log4j2.version} com.lmax disruptor ${disruptor.version} org.slf4j slf4j-api ${slf4j.version} org.apache.logging.log4j log4j-slf4j-impl ${log4j2.version} org encountered in upgrading log4j2 This is the end of the article .springframework spring-core commons-logging commons-logging org.slf4j jcl-over-slf4j ${slf4j.version} runtime org.slf4j log4j-over-slf4j ${slf4j.version} on "how to solve the problems encountered in log4j upgrade log4j2". Hope that the above content can be helpful to you, so that you can learn more knowledge, if you think the article is good, please share it for more people to see.
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