1.eclipse下載
http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/lunasr1
2.插件安裝：Help -> Install New Software.在下面面板裏面，點擊 Add 按鈕並填充下面的字段：
svn插件地址：
name：svn1.6
Location：http://subclipse.tigris.org/update_1.6.x
maven插件地址：
name：Maven Integration for Eclipse Update Site
Location：http://download.eclipse.org/technology/m2e/releases/1.4/1.4.0.20130601-0317
activiti插件地址：
name：Activiti BPMN 2.0 designer
Location：http://activiti.org/designer/update/
tomcat plugin download url：
http://www.eclipsetotale.com/tomcatPlugin.html
unzip to eclipse's plugins folder.
eclipse tomcat config.