打开\vimfiles\plugin目录下的snipMate.vim文件，找到函数GetSnippets（大概在100行左右）

fun! GetSnippets(dir, filetypes)
    for ft in split(a:filetypes, '\.')
        if has_key(g:did_ft, ft) | continue | endif
        call s:DefineSnips(a:dir, ft, ft)
        if ft == 'objc' || ft == 'cpp' || ft == 'cs'
            call s:DefineSnips(a:dir, 'c', ft)
        elseif ft == 'jsp' 
            call s:DefineSnips(a:dir, 'html', ft)
            call s:DefineSnips(a:dir, 'javascript', ft)
        elseif ft == 'html'
            call s:DefineSnips(a:dir, 'javascript', ft)
        elseif ft == 'xhtml'
            call s:DefineSnips(a:dir, 'html', 'xhtml')
        endif
        let g:did_ft[ft] = 1
    endfor
endf

设置.jsp文件，继承.html 与 .js的自动补全

elseif ft == 'jsp' 
            call s:DefineSnips(a:dir, 'html', ft)
            call s:DefineSnips(a:dir, 'javascript', ft)