文本搜索

March 25,2004

<%
Head = "搜索"
SearchString = Request("SearchString")
count=0

'把当前目录的实际路径转换为虚拟路径
Function UnMapPath( Path )
UnMapPath = Replace(Mid(Path, Len(Server.MapPath("/")) + 1), "", "/")
End Function

Function SearchFile( f, s, title )
Set fo = fs.OpenTextFile(f)
content = fo.ReadAll'读全部文本到content
fo.Close
SearchFile = InStr(1, content, S, vbTextCompare) > 0 '从第一个字符开始检查content里面是否有S
If SearchFile Then'如果有,则提出文件TITLE存入变量
   pos1 = InStr(1, content, "<TITLE>", vbTextCompare)
   pos2 = InStr(1, content, "</TITLE>", vbTextCompare)
   title = ""
   If pos1 > 0 And pos2 > 0 Then'取TITLE标记中间的字符
      title = Mid( content, pos1 + 7, pos2 - pos1 - 7 )
   End If
End If
End Function

Function FileLink( f, title )
vPath = UnMapPath( f.Path )'取路径
If title = "" Then title = f.Name'做链接
FileLink = "<A HREF=""" &  vPath & """>" & title & "</A>"
FileLink = "<UL>·" & FileLink & "</UL>"
End Function

Sub SearchFolder( fd, s )
found = False
For each f In fd.Files
   pos = InStrRev(f.Path, "." )
   If pos > 0 Then
      ext = Mid(f.Path, pos + 1 )
   Else
      ext = ""
   End If
   If LCase(ext) = "htm" Then'显示扩展名字为HTM的文件
      If SearchFile( f, s, title ) Then
         Response.Write FileLink(f, title)
         count=count+1
         ' Response.Write cstr(count)
      End If
   End If
Next

For each sfd In fd.SubFolders
   SearchFolder sfd, s
Next
End Sub
%>
<html>

<head>
<meta http-equiv="Content-Type"
content="text/html; charset=gb_2312-80">
<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title><%=Head%></title>
</head>

<body bgcolor="#FFFFFF">

<h1><%=Head%></h1>

<hr>

<form action="search.asp" method="Get">
<p>请输入欲搜索的内容： <input type="text"
size="20" name="SearchString" value="<%=SearchString%>"> <input
type="submit" value="搜索"> </p>
</form>
<%
Set fs = Server.CreateObject("Scripting.FileSystemObject")
Set fd = fs.GetFolder( Server.MapPath("/") ) '设置开始搜索的路径！

If SearchString <> "" Then
Response.Write "<H2>搜索<font color=red>" & SearchString & "</font>结果如下：</H2><P>"
SearchFolder fd,SearchString
End If
%>
<hr>
</body>
</html>