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下载 Maven（）, 并解压到某个目录。例如/Users/xxxx/apache-maven-3.9.3

打开Terminal,输入以下命令，设置Maven classpath

$ vi ~/.bash_profile

添加下列两行代码ESC退出编辑：wq 保存退出。

export MAVEN_HOME=/Users/xxxx/apache-maven-3.9.3export PATH=${PATH}:$MAVEN_HOME/bin

输入命令以使bash_profile生效

$ source ~/.bash_profile

输入mvn -v查看Maven是否安装成功.

配置过程中的异常：

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0    at java.lang.ClassLoader.defineClass1(Native Method)    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)    at java.lang.ClassLoader.defineClass(ClassLoader.java:621)    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)    at java.security.AccessController.doPrivileged(Native Method)    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)    at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:254)    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)    at org.codehaus.plexus.classworlds.launcher.Launcher.getMainClass(Launcher.java:144)    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:266)    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

解决方案：

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