Maven eclipse环境搭建
1.下载apache mavenhttp://maven.apache.org/download.html
2.安装maven eclipse插件 http://www.eclipse.org/m2e/download/
3.安装WTP for maven，否则发布时不会生成lib目录 http://download.eclipse.org/webtools/updates/
(注意：安装wtp后要update maven dependencies和update maven configration)