Java mvn 命令在 mac OS X Yosemite 上不起作用
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mvn command not working on mac OS X Yosemite
提问by John
I have performed all the necessary steps like the following after referring other Stack overflow threads and online resources for installing / configuring maven. Here is what I did :
在参考其他堆栈溢出线程和用于安装/配置 maven 的在线资源后，我已经执行了所有必要的步骤，如下所示。这是我所做的：
export M2_HOME=/usr/local/apache-maven/apache-maven-3.3.9
export M2=$M2_HOME/bin
My Java Home variable is also, set, as shown below:
我的 Java Home 变量也已设置，如下所示：
echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_60/Contents/Home
export PATH=$M2:$PATH
Inspite of doing all of the above, when I run mvn --version, I get Error: JAVA_HOME is not defined correctly.
We cannot execute /Library/Java/JavaVirtualMachines/jdk1.8.0_60/Contents/Home/bin/java.
尽管执行了上述所有操作，但当我运行时mvn --version，我得到Error: JAVA_HOME is not defined correctly.
We cannot execute /Library/Java/JavaVirtualMachines/jdk1.8.0_60/Contents/Home/bin/java.
PATH Output is as follows :
PATH 输出如下：
echo $PATH
/usr/local/apache-maven/apache-maven-3.3.9/bin:/usr/local/apache-maven/apache-maven-3.2.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/git/bin:/usr/local/MacGPG2/bin
采纳答案by 11thdimension
export PATH=$M2:$PATHshould be export PATH=$M2/bin:$PATHor export PATH=$M2_HOME/bin:$PATH
export PATH=$M2:$PATH应该是export PATH=$M2/bin:$PATH或export PATH=$M2_HOME/bin:$PATH
Also JAVA_HOME should be something like this
JAVA_HOME 也应该是这样的
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60
then
然后
export PATH=$JAVA_HOME/bin:$PATH
export PATH=$JAVA_HOME/bin:$PATH
That's all.
就这样。
All in one
一体
export M2_HOME=/usr/local/apache-maven/apache-maven-3.3.9
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60
export PATH=$JAVA_HOME/bin:$M2_HOME/bin:$PATH
回答by user3793706
I faced exactly the same problem and resolved it by getting the JAVA_HOME path by executing the following command: /usr/libexec/java_home -version
我遇到了完全相同的问题，并通过执行以下命令获取 JAVA_HOME 路径来解决它： /usr/libexec/java_home -version
output: java_home: option `-version' requires an argument /Library/Java/JavaVirtualMachines/jdk1.8.0_112.jdk/Contents/Home
输出：java_home：选项`-version'需要一个参数 /Library/Java/JavaVirtualMachines/jdk1.8.0_112.jdk/Contents/Home
Copy and paste this as value to JAVA_HOME and try again. It should work.
将此作为值复制并粘贴到 JAVA_HOME 并重试。它应该工作。
