更新时间:2022-12-16 21:36:44
http://www.aspfaq.com/2173 >
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请发布DDL,样本数据和所需结果。
参见 http://www.aspfaq.com/5006 获取信息。
Henrik< no@email.dk>写在留言中
news:42 *********************** @ news.dk.uu.net ...
http://www.aspfaq.com/2173
--
Please post DDL, sample data and desired results.
See http://www.aspfaq.com/5006 for info.
"Henrik" <no@email.dk> wrote in message
news:42***********************@news.dk.uu.net...
嗨
我怎么知道网址是否存在?我想要的是这样的函数:
如果UrlExists(http://www.test.com/test.html")T母......
Response.Write(是啊!!)
其他
Response.Write(无文件: - (")
结束如果
任何人都可以帮忙吗?
/ Henrik
Hi
How do I find out if an url exists? Whar I want is a function like this:
If UrlExists("http://www.test.com/test.html") Then
Response.Write("Yeah!!")
Else
Response.Write("No file :-(")
End If
Can anyone help?
/Henrik
" Henrik" < no@email.dk>在消息中写道
news:42 *********************** @ news.dk.uu.net ...
"Henrik" <no@email.dk> wrote in message
news:42***********************@news.dk.uu.net...
嗨
如何确定网址是否存在?我想要的Whar是这样的函数:
如果UrlExists(" http://www.test.com/test.html")那么
Response.Write(是的! !)
其他
Response.Write(无文件: - (")
结束如果
任何人都可以帮忙吗?
/ Henrik
Hi
How do I find out if an url exists? Whar I want is a function like this:
If UrlExists("http://www.test.com/test.html") Then
Response.Write("Yeah!!")
Else
Response.Write("No file :-(")
End If
Can anyone help?
/Henrik
这会有帮助吗?关注自动换行。
函数UrlExists(URL)
On Error Resume Next
Err.Clear
Dim b
使用Server.CreateObject(" Microsoft.XMLHTTP")
。打开GET,URL,False
。发送
b = .ResponseBody
如果Err.Number< > 0或.Status<> 200然后
Fetch = False
退出功能
结束如果
结束
Fetch = Err.Number = 0
结束功能
我认为该对象可能因Windows版本而异:
CreateObject(" Microsoft.XMLHTTP")
CreateObject(" MSXML2.ServerXMLHTTP" ;)
CreateObject(" MSXML2.ServerXMLHTTP.3.0")
因此,以下可能会有效(未经测试):
函数UrlExists(URL)
On Error Resume Next
Err.Clear
Dim booXML
booXML =错误
Dim strXML
Dim objXML
设置objXML = Server.CreateObject(" Microsoft.XMLHTTP")
如果Err.Number = 0则
booXML = True
否则
设置objXML = Server.CreateObject(" MSXML2.ServerXMLHTTP")
如果Err.Number = 0则
booXML = True
否则
设置objXML = Server.CreateObject( MSXML2.ServerXMLHTTP.3.0)
如果Err.Number = 0那么
booXML = True
结束如果
结束如果
Err.Clear
结束如果
objXML.Open" GET",URL,False
objXML.Send
strXML = .ResponseText
如果Err.Number<> 0或objXML.Status<> 200然后
Fetch = False
退出函数
结束如果
Fetch = Err.Number = 0
结束功能
Will this help? Watch for word-wrap.
Function UrlExists(URL)
On Error Resume Next
Err.Clear
Dim b
With Server.CreateObject("Microsoft.XMLHTTP")
.Open "GET",URL,False
.Send
b = .ResponseBody
If Err.Number <> 0 Or .Status <> 200 Then
Fetch = False
Exit Function
End If
End With
Fetch = Err.Number = 0
End Function
I think that the object may vary by Windows version:
CreateObject("Microsoft.XMLHTTP")
CreateObject("MSXML2.ServerXMLHTTP")
CreateObject("MSXML2.ServerXMLHTTP.3.0")
So perhaps the following will work (untested):
Function UrlExists(URL)
On Error Resume Next
Err.Clear
Dim booXML
booXML= False
Dim strXML
Dim objXML
Set objXML = Server.CreateObject("Microsoft.XMLHTTP")
If Err.Number = 0 Then
booXML = True
Else
Set objXML = Server.CreateObject("MSXML2.ServerXMLHTTP")
If Err.Number = 0 Then
booXML = True
Else
Set objXML = Server.CreateObject("MSXML2.ServerXMLHTTP.3.0")
If Err.Number = 0 Then
booXML = True
End If
End If
Err.Clear
End If
objXML.Open "GET",URL,False
objXML.Send
strXML = .ResponseText
If Err.Number <> 0 Or objXML.Status <> 200 Then
Fetch = False
Exit Function
End If
Fetch = Err.Number = 0
End Function
>使用Server.CreateObject(Microsoft.XMLHTTP)
FYI,这个不建议用于ASP ... MSXML2.ServerXMLHTTP是
更安全。
> With Server.CreateObject("Microsoft.XMLHTTP")
FYI, this one isn''t recommended for use from ASP... MSXML2.ServerXMLHTTP is
much safer.