Mac Maven configuration path
Note: The online data path configuration is not uniform, reconfigure Maven strenuous path, we follow the configuration format next record.
Operation: vi ~ / .bash_profile
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home
export M2_HOME=/Users/{UserName}/apache-maven-3.6.1
export PATH=$PATH:$M2_HOME/bin