报错内容：within the open projects in your workspace, you have more than on jsp file with
the same name and each has breakpoints set (or references a java class having
the same name and breakpoint set) the jspdebugger wasunable to disambiguate them
fully so the opened source file may be incorrect in order to fix this
issue, please remove th break points form the other file with the same name as
th one your're trying to debug or temporarily colse the projects containing the
duplicate files
解决方法：因为myeclipse的工作空间有两个项目都包含相同的文件，把其他项目关闭即可。