RoR on eclipse

安装需求：
ruby版本1.8.7或以上（这样用gem list install rails不会出错）
ruby gem版本1.3.7或以上
安装好rails.


步骤
1， install RDT:
open eclipse->click "help" -> click "install new software"-> click "add"-> input "http://rubyeclipse.sourceforge.net/nightlyBuild/updateSite/" to the URL textfiled and type "RDT" -> system download the plug in automatically-> install it once finished the download

2, install RadRails:
open eclipse->click "help" -> click "install new software"-> click "add"-> input
"http://radrails.sourceforge.net/update" and type "RadRails"->system download the plug in automatically -> install it once finished the download

3, configure ruby interpreter by opening "windows",

4, configure rails