Question: mvn is not recognized as an internal or external windows 7?
Answer: mvn -version 'mvn' is not recognized as an internal or external command, operable program or batch file. Answer: Refer to Step 4, make sure the %MAVEN_HOME%\bin is added to the PATH system variable. Answer: Refer to Step 2, make sure JDK is installed and the JAVA_HOME system variable is configured.