百度了一下，按照网上说法，将配置文件修改如下
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx512m
将其修改为如下内容，即可启动Eclipse
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
128M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
128m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx256m
=================================华丽的分割线=========================================
接着在运行，Eclipse提示：The Eclipse executable launcher was unable to locate its companion shared libray.
继续百度~，没有找到一个很好的方法。
观察了一下配置文件，发现所以然，我又将
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
128M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
128m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx256m
修改了一下改为：
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.1.R36x_v20100810
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
128M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
128m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx256m
嗯，现在正常啦，看来还是配置文件的问题。 （其实只要改后面的512改成256就行）
转自：http://blog.sina.com.cn/s/blog_6b8e9a1a0100x3nz.html