使用IDEA创建Maven项目时报错

使用IDEA创建Maven

报错情况

I:\javapz\jdk1.7\bin\java.exe -Dmaven.multiModuleProjectDirectory=C:\Users\Administrator\AppData\Local\Temp\archetype1tmp "-Dmaven.home=D:\idea\IntelliJ IDEA 2018.1.2\plugins\maven\lib\maven3" "-Dclassworlds.conf=D:\idea\IntelliJ IDEA 2018.1.2\plugins\maven\lib\maven3\bin\m2.conf" -Dfile.encoding=UTF-8 -classpath "D:\idea\IntelliJ IDEA 2018.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar" org.codehaus.classworlds.Launcher -Didea.version=2018.1.2 -DinteractiveMode=false -DgroupId=Test -DartifactId=com.test -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeVersion=RELEASE org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-archetype-plugin/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): Received fatal alert: protocol_version
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.433 s
[INFO] Finished at: 2019-12-06T13:06:03+08:00
[INFO] Final Memory: 6M/121M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-archetype-plugin:RELEASE or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Failed to resolve version for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Could not find metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml in local (C:\Users\Administrator\.m2\repository) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
[ERROR] Maven execution terminated abnormally (exit code 1)

错误的项目结构：没有自动创建src等目录

正确的项目结构：会自动创建出 src>main>webapp>WEB-INF

解决方案

首先，idea创建的maven一开始是没有setting.xml的。
需要从idea的maven在安装路径的plugins文件夹下，即X:\xxx\IntelliJ IDEA 2016.3.2\plugins\maven\lib\maven3\conf\setting.xml 中找到setting.xml文件复制到.m2文件夹下（即上面安装时圈的那个路径）

提高Maven库导包速度的方法

为了之后能够快速的下载依赖包，我们可以加一个由阿里提供的官方库的镜像，因为maven的官方仓库在国外，太慢了。
在你的.m2文件夹下的setting.xml中添加如下代码：

      alimaven
      central
      aliyun maven
      http://maven.aliyun.com/nexus/content/repositories/central/

接下来就可以创建Maven项目了，记得把自动导入打开，会很方便。

ok，这样就没有问题了。