mvn -U idea:idea
mvn -f pom.xml dependency:copy-dependencies
mvn dependency:get -DremoteRepositories=http://repo1.maven.org/maven2/ -DgroupId=junit -DartifactId=junit -Dversion=4.8.2
原文链接
https://www.cnblogs.com/zany-hui/articles/10109500.html
