No plugin found for prefix ‘jetty’ in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories

maven配置文件(最大的那个)的<pluginGroups></pluginGroups>增加一行如下
<pluginGroups>
<pluginGroup>org.mortbay.jetty</pluginGroup>
</pluginGroups>