1. 先安裝eclipse的幾個插件
org.eclipse.emf.transaction_1.4.0.v20100331-1738.jar
org.eclipse.emf.validation_1.8.0.201405281429.jar
org.eclipse.emf.workspace-1.5.1.201405281451.jar
下載地址：https://download.csdn.net/download/hiyanghao/12130965
安裝方式：將這三個jar放到eclipse下的plugins目錄並重啓eclipse
2. 離線安裝 activiti-designer-5.18.0
下載地址：http://www.activiti.org/designer/archived/activiti-designer-5.18.0.zip
然後打開Eclipse→Help→Install New SoftWare→Add
點擊Archive…選擇下載的壓縮包activiti-designer-5.18.0.zip
3. 之後一直next到安裝結束…
重啓eclipse，然後查看Preference中有了Activiti說明安裝成功了
