How maven resolves jar package conflicts

There are two ways for maven to solve the repeated introduction or conflict of jar packages:
one is the command: http://blog.csdn.net/nanfeng224/article/details/45670251 The other
is the tool:
IDEA: https://www .cnblogs.com/rainydayfmb/p/6761134.html In
eclipse: http://blog.csdn.net/w1014074794/article/details/51892619