当我们在ecipse安装 maven插件后， 

(how to install maven plugin named m2eclipse)

You can install the lastest M2Eclipse release (1.7.0) by using the following update site from within Eclipse:

http://download.eclipse.org/technology/m2e/releases

创建maven项目时 会报错如下：

Could not resolve archetype org.apache.maven.archetypes:maven-archetype-quickstart:1.1 from any of the configured repositories.

 解决方法参见：http://stackoverflow.com/questions/15506043/create-a-maven-project-in-eclipse-complains-could-not-resolve-archetype

Assuming that you have your proxy settings correct, you may have missed out pointing Eclipse to the intended settings.xml file. This happens often when you have both Maven installed as a snap in, and an external installation outside Eclipse. You need to tell Eclipse which Maven installation it should use, and which settings.xml file it should be looking for.

First check that the settings.xml file contains your proxy settings.

Next, check that the user settings.xml file here contains your proxy settings.（配置全局仓库 和 本地仓库）

If you have made any changes, restart Eclipse.

Bingo, it works great for me at least.