For my 6.2 based clients, and in the past, I've done a lot of work in this environment, over time. 3.0.1 is the highest version IDE that still works with LR 6.2. You can not go to the 3.1.x versions of the IDE with 6.2, not supported. Now with that being said, yes, a lot of people spent a lot of time using 2.2.x (2.2.4 is the latest 2.2.x release) on Liferay 6.2. Either 2.2.4 or 3.0.1 would be good choices. If your planning on using maven, I've noticed the newer IDE's (3.0.1) work a little better for that.
用eclipse插件的話，只能用到3.0.1
3.1之後的eclipse插件不支持liferay 6.2
插件下載地址SourceForge
https://sourceforge.net/projects/lportal/files/Liferay%20IDE/
本文 參考鏈接