The JAVA_HOME environment variable is not defined correctly.NB: JAVA_HOME should point to a JDK not

问题

java -version执行正常找到JDK
mvn -v命令执行完出错：

The JAVA_HOME environment variable is not defined correctly 
This environment variable is needed to run this program 
NB: JAVA_HOME should point to a JDK not a JRE

具体报错如下：

Microsoft Windows [版本 10.0.22621.4317]
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C:\Users\xxx>java -version
java version "17.0.8" 2023-07-18 LTS
Java(TM) SE Runtime Environment (build 17.0.8+9-LTS-211)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.8+9-LTS-211, mixed mode, sharing)

C:\Users\xxx>mvn -v
The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE

C:\Users\xxx>

解决

参考了网上很多解决方法 && AI解答，没有实质性解决，最后根据这些方法大致得到原因，下面是解决的方法