mvn build 出错:
log：
Failed to execute goal on ****** Could not find artifact org.apache.logging.log4j:log4j:jar:2.13.3 in nexus *******, try downloading from https://logging.apache.org/log4j/2.x/download.html -> [Help 1]
原因：
此版本只有pom， 需要加tag <type>pom<pom>
mvn dependency tree:
mvn dependency:tree -Doutput=./dependency_tree/tree.txt
mvn dependency:tree > ~/Downloads/tree.txt
解压jar/war 包：
jar -xvf *.war