1.输入mvn -v 报如下错误:
Error: JAVA_HOME is set to an invalid directory.
JAVA_HOME = "C:\Program Files\Java\jdk1.8.0_91"
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.
2.在cmd的命令行下执行 记住后面不能有\bin。随后执行
SET JAVA_HOME=C:\Program Files\Java\jdk1.8.0_91
3.在此输入mvn -v 如果显示如下说明成功了