freemaker插件地址:https://freemarker.apache.org/editors.html 首先请打开我们的软件安装模块:

Help => Install New Software 点击and,再出来的对话框中

name输入:jboos(名字随意输入即可)

Location输入: https://download.jboss.org/jbosstools/oxygen/stable/updates/core/freemarker