如果在OS X 10.9 Mavericks上使用MacPorts，你可以简单地做:

sudo port install maven3
sudo port select --set maven maven3

在OS X上安装Maven，请到Apache Maven官网下载二进制压缩文件。

然后，您可以将下载文件夹中的apache-maven-3.0.5文件夹转移到您想要保存Maven的任何地方;然而，由于其余的过程涉及到命令行，我建议你从那里做所有的事情。

在命令行中，你可以运行如下代码:

mv ~/Downloads/apache-maven-3.0.5 ~/Development/

这只是我个人的偏好——在我的主目录中有一个“Development”目录。如果你愿意，你可以选择其他的。

接下来，编辑~/。在您选择的编辑器中配置文件，并添加以下内容:

export M2_HOME="/Users/johndoe/Development/apache-maven-3.0.5"
export PATH=${PATH}:${M2_HOME}/bin

第一行对Maven很重要(必须是一个完整的显式路径);为了运行“mvn”二进制文件，第二行对shell很重要。如果.profile中已经有第二行的变体，那么只需在它的末尾添加${M2_HOME}/bin。

现在打开第二个终端窗口并运行

mvn -version

输出应该是这样的…

Apache Maven 3.0.5 (r01de14724cdef164cd33c7c8c2fe155faf9602da; 2013-02-19 13:51:28+0000)
Maven home: /Users/johndoe/Development/apache-maven-3.0.5
Java version: 1.7.0_40, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9", arch: "x86_64", family: "mac"

有几件事需要注意:

If you've installed the Oracle JDK 1.7, then you may find Maven reports JDK 1.6 in the above output. To solve this, add the following to your ~/.profile: export JAVA_HOME=$(/usr/libexec/java_home) As some have pointed out, Maven has historically been supplied either with OS X itself, or with the optional Command Line Tools for XCode. This may cease to be the case for future versions of OS X, and in fact OS X Mavericks does not include Maven. Personal opinion: This could be because they are still in beta, or it could be that Apple have taken a look at the latest Thoughtworks Technology Radar, and spotted that Maven has been moved to "Hold".

如果您尝试过brew install maven，但发现缺少gcc编译器和一些其他依赖项，那么更简单的方法是安装sdkman 然后运行

SDK安装maven

(或参考最新的文档以获得正确的命令)

对于这项工作，sdkman可能资历过高，但如果您要处理多个版本的sdk，那么它通常是一个非常好的工具。

感谢Ammar为优秀的提示

在Mavericks(10.9)之前的OS X实际上内置了Maven 3。

如果你使用的是OS X Lion系统，默认情况下你不会安装java。单独运行java，它会提示你安装它。

假设条件满足，运行mvn -version并看到如下输出:

Apache Maven 3.0.3 (r1075438; 2011-02-28 12:31:09-0500)
Maven home: /usr/share/maven
Java version: 1.6.0_29, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.7.2", arch: "x86_64", family: "mac"

两个方法

(use homebrew) Auto install: Command: brew install maven Pros and cons Pros: easy Cons: (probably) not latest version Manually install (for latest version): Pros and cons Pros: use your expected any (or latest) version Cons: need self to do it Steps download latest binary (apache-maven-3.6.3-bin.zip) version from Maven offical download uncompress it (apache-maven-3.6.3-bin.zip) and added maven path into environment variable PATH normally is edit and add: export PATH=/path_to_your_maven/apache-maven-3.6.3/bin:$PATH into your startup script( ~/.bashrc or ~/.zshrc etc.)

额外的注意

如何立即生效并检查安装是否正确?

A:

source ~/.bashrc
echo $PATH
which mvn
mvn --version

这里的输出:

➜  bin pwd
/Users/crifan/dev/dev_tool/java/maven/apache-maven-3.6.3/bin
➜  bin ll
total 64
-rw-r--r--@ 1 crifan  staff   228B 11  7 12:32 m2.conf
-rwxr-xr-x@ 1 crifan  staff   5.6K 11  7 12:32 mvn
-rw-r--r--@ 1 crifan  staff   6.2K 11  7 12:32 mvn.cmd
-rwxr-xr-x@ 1 crifan  staff   1.5K 11  7 12:32 mvnDebug
-rw-r--r--@ 1 crifan  staff   1.6K 11  7 12:32 mvnDebug.cmd
-rwxr-xr-x@ 1 crifan  staff   1.5K 11  7 12:32 mvnyjp
➜  bin vi ~/.bashrc
➜  bin source ~/.bashrc
➜  ~ echo $PATH
/Users/crifan/dev/dev_tool/java/maven/apache-maven-3.6.3/bin:xxx
➜  bin which mvn
/Users/crifan/dev/dev_tool/java/maven/apache-maven-3.6.3/bin/mvn
➜  bin mvn --version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /Users/crifan/dev/dev_tool/java/maven/apache-maven-3.6.3
Java version: 1.8.0_112, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_112.jdk/Contents/Home/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "mac os x", version: "10.14.6", arch: "x86_64", family: "mac"

详情请参考我的(中文)帖子:【已解决】Mac中安装Gradle

这招对我很管用:

$ vim .bash_profile

出口JAVA_HOME = $ (/ usr / libexec / JAVA_HOME)

$ source .bash_profile

来源:http://www.mkyong.com/java/maven-java_home-is-not-defined-correctly-on-mac-osx/