因为工作需要，换了一台电脑 然后报一下错误
Failure to transfer org.codehaus.plexus:plexus-archiver:jar:2.0.1 from http://repo.maven.apache.org/
maven2 was cached in the local repository, resolution will not be reattempted until the update interval
of central has elapsed or updates are forced. Original error: Could not transfer artifact
org.codehaus.plexus:plexus-archiver:jar:2.0.1 from/to central (http://repo.maven.apache.org/maven2):
No response received after 60000
以下是尝试的方法
1.先去掉Maven工程的maven特性，选中工程 鼠标右键-->Maven-->Disable Maven Nature. 此步骤后pom.xml错误消失
2.为工程增加Maven特性,选中工程 鼠标右键-->Configure-->Convert to Maven Project.
经过上述步骤，Maven工程就正常了。
Failure to transfer org.codehaus.plexus:plexus-archiver:jar:2.0.1 from http://repo.maven.apache.org/
maven2 was cached in the local repository, resolution will not be reattempted until the update interval
of central has elapsed or updates are forced. Original error: Could not transfer artifact
org.codehaus.plexus:plexus-archiver:jar:2.0.1 from/to central (http://repo.maven.apache.org/maven2):
No response received after 60000
以下是尝试的方法
1.先去掉Maven工程的maven特性，选中工程 鼠标右键-->Maven-->Disable Maven Nature. 此步骤后pom.xml错误消失
2.为工程增加Maven特性,选中工程 鼠标右键-->Configure-->Convert to Maven Project.
经过上述步骤，Maven工程就正常了。
网络不好的情况下，最好建立本地私服。
中央仓库对应jar的地址如下：
http://mvnrepository.com/artifact/org.codehaus.plexus/plexus-archiver
刷新项目终于好了，首先我们得保证maven_jdk和工作站中选择的jre是同一个版本，不然会出现运行错误，然后试着运行test命令，发下出现如下异常：
-Dmaven.multiModuleProjectDirectory system property is not set. Check $M2_HOME environment variable and mvn script match.
解决方式如下，加入：-Dmaven.multiModuleProjectDirectory=$M2_HOME
eclipse：
