even though I have configured %m2_home% and %path% correctly, the command "mvn" is still not recognized.
use command echo to output the system environment variables, everything is find, there is no typo issue of ";" and "\".
How to resolve:
in %path%, use the absolute uri instead of "%m2_home%\bin", that is, using "C:\your install path\bin".
mvn command is not recognized as an internal or external command
原文：http://www.cnblogs.com/haibinyuan/p/5085842.html