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MAC上安装maven以及配置Intellij IDEA

大前提：java环境已经配置好

maven是对于java工程的管理

一、maven安装到mac

1、首先，maven下载地址http://maven.apache.org/download.cgi

点击进去是最新版本的maven，后来发现最新版本出现了一些问题，所以我实际下载的是老版本3.6.1

点击最下面的“archive”超链接可以下载老版本

2，下载后把解压的文件夹放置到你想放的路径下面，比如/Users/zwf/apache-maven-3.6.1

然后此时需要更改.bash_profile文件，有两种方法，一个是直接在终端使用指令更改保存，一个是终端打开文件保存

第一种：

①输入 vim ~/.bash_profile

②输入i进行编辑

export M2_HOME="/Users/zwf/apache-maven-3.6.1"
export PATH="$M2_HOME/bin:$PATH"

③输入:wq保存（:w进行文件的保存，:wq为保存并退出指令）

④配置文件生效   source ~/.bash_profile

第二种（实际是用的这种）

①输入 open ~/.bash_profile

②在自动打开的文件里修改成

export M2_HOME="/Users/zwf/apache-maven-3.6.1"
export PATH="$M2_HOME/bin:$PATH"

之后点击保存按钮

③配置文件生效   source ~/.bash_profile

更改完配置文件以后，在终端输入mvn -v可以查看是否安装成功以及安装路径

3、setting.xml在maven的conf文件夹下

如果要更改该文件，直接替换覆盖即可

二、intelliJ IDEA 的maven配置

在preferences-maven中配置

maven home dictionary：（就是上面的/Users/zwf/apache-maven-3.6.1，可以进行覆盖）

user setting file：（setting.xml的路径，勾选override覆盖即可）

local reponsitory：本地仓库路径，取自setting.xml里的配置，一般不用覆盖

 <!-- 本地仓库的路径。默认值为${user.home}/.m2/repository -->

 <localRepository>usr/local/maven</localRepository>

配置好保存就ok了

三、遇到的一个问题

配置好后从git导入失败，也无法从maven下载资源

提示unable to import maven project:see logs for details

让查看log就去查看log，点击help-Show Log in Finder

查看有报错：【Error】com.google.inject.CreationException: Unable to create injector（https://blog.csdn.net/awecoder/article/details/101149948）

ava.lang.RuntimeException: com.google.inject.CreationException: Unable to create injector, see the following errors:

1) No implementation for org.apache.maven.model.path.PathTranslator was bound.
  while locating org.apache.maven.model.path.PathTranslator
    for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.pathTranslator(Unknown Source)
  at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)

2) No implementation for org.apache.maven.model.path.UrlNormalizer was bound.
  while locating org.apache.maven.model.path.UrlNormalizer
    for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.urlNormalizer(Unknown Source)
  at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)

2 errors
	at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:543)
	at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:159)
	at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:106)
	at com.google.inject.Guice.createInjector(Guice.java:87)
	at com.google.inject.Guice.createInjector(Guice.java:69)
	at com.google.inject.Guice.createInjector(Guice.java:59)
	at org.codehaus.plexus.DefaultPlexusContainer.addComponent(DefaultPlexusContainer.java:344)
	at org.codehaus.plexus.DefaultPlexusContainer.addComponent(DefaultPlexusContainer.java:332)
	at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.customizeComponents(Maven3XServerEmbedder.java:573)
	at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.customize(Maven3XServerEmbedder.java:542)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
	at java.rmi/sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:283)
	at java.rmi/sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:260)
	at java.rmi/sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161)
	at java.rmi/java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:209)
	at java.rmi/java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:161)
	at com.sun.proxy.$Proxy212.customize(Unknown Source)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at com.intellij.execution.rmi.RemoteUtil.invokeRemote(RemoteUtil.java:175)
	at com.intellij.execution.rmi.RemoteUtil.access$200(RemoteUtil.java:38)
	at com.intellij.execution.rmi.RemoteUtil$1$1$1.compute(RemoteUtil.java:156)
	at com.intellij.openapi.util.ClassLoaderUtil.computeWithClassLoader(ClassLoaderUtil.java:45)
	at com.intellij.execution.rmi.RemoteUtil.executeWithClassLoader(RemoteUtil.java:227)
	at com.intellij.execution.rmi.RemoteUtil$1$1.invoke(RemoteUtil.java:153)
	at com.sun.proxy.$Proxy212.customize(Unknown Source)
	at org.jetbrains.idea.maven.server.MavenEmbedderWrapper.doCustomize(MavenEmbedderWrapper.java:92)
	at org.jetbrains.idea.maven.server.MavenEmbedderWrapper.lambda$customizeForResolve$1(MavenEmbedderWrapper.java:65)
	at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:76)
	at org.jetbrains.idea.maven.server.MavenEmbedderWrapper.customizeForResolve(MavenEmbedderWrapper.java:64)
	at org.jetbrains.idea.maven.project.MavenProjectsTree.resolve(MavenProjectsTree.java:1262)
	at org.jetbrains.idea.maven.project.MavenProjectsProcessorResolvingTask.perform(MavenProjectsProcessorResolvingTask.java:45)
	at org.jetbrains.idea.maven.project.MavenProjectsProcessor.doProcessPendingTasks(MavenProjectsProcessor.java:140)
	at org.jetbrains.idea.maven.project.MavenProjectsProcessor.access$000(MavenProjectsProcessor.java:33)
	at org.jetbrains.idea.maven.project.MavenProjectsProcessor$2.run(MavenProjectsProcessor.java:114)
	at org.jetbrains.idea.maven.utils.MavenUtil.lambda$runInBackground$5(MavenUtil.java:468)
	at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:294)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
知识兔

原因：Maven3.6.2的版本兼容问题。
解决方法：重新下载较低版本Maven3.6.1及以下版本可以顺利解决。

四、其他补充信息

1、关于setting xml的内容的意义

https://www.cnblogs.com/yangxia-test/p/4409736.html

2、setting.xml里的阿里云镜像，如需要

<mirrors>
    <mirror>
      <id>alimaven</id>
      <mirrorOf>central</mirrorOf>
      <name>aliyun maven</name>
   <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
    </mirror>
  </mirrors>

计算机