1、先访问JBoss Tools网站，看看上面怎么说；

　　http://tools.jboss.org -》 进入下载界面

看到下面这句话：

Drag and drop this  icon into your active Eclipse Luna 4.4.2 workspace, or alternatively, search for "JBoss Tools (Luna)" in Eclipse via:

 Help > Eclipse Marketplace...

You can also view the installation page on the Eclipse Marketplace.

2、上面说的很明显，打开Eclipse Luna 4.4.2 -》进入 Help > Eclipse Marketplace ，然后搜索JBoss Tools (Luna) ，我们发现能够找到该插件，选择“Install”