〖想试着做一个简单的读取RSS新闻的页面 ...... 想试着做一个简单的读取RSS新闻的页面 虽然将.net中关于XML的几个类看了个遍 但还是不太懂 这是我写的一个读取XML文档的函数 直接在设计页面中调用就行 Public Function LoadRSS(ByVal RssUrl As String, ByVal showNewsCount As Integer) As String Try '读取xml文档 Dim objXMLDoc As New System.Xml.XmlDocument() Dim strNodes As String = "" Dim objItems As System.Xml.XmlNodeList Dim objItems1 As System.Xml.XmlNodeList Dim objNode As System.Xml.XmlNode Dim objNode1 As System.Xml.XmlNode Dim i As Integer Dim newsTitle As String Dim newsUrl As String Dim newsDescription As String Dim newsPubDate As String Dim newsAuthor As String Dim newsCategory As String objXMLDoc.Load(RssUrl) objItems = objXMLDoc.GetElementsByTagName("item") If RssUrl = "" Then RSSNews = "未找到信息源,您可刷新重试或联系管理员!" Exit Function End If If CStr(showNewsCount) = "" Or showNewsCount > 30 Then showNewsCount = 10 '默认新闻显示数目 End If If showNewsCount = 0 Then showNewsCount = objItems.Count End If If objXMLDoc.HasChildNodes = True Then i = 1 For Each objNode In objItems If objNode.HasChildNodes = True Then objItems1 = objNode.ChildNodes For Each objNode1 In objItems1 Select Case objNode1.Name Case "title" newsTitle = objNode1.InnerText Case "link" newsUrl = objNode1.InnerText Case "description" newsDescription = objNode1.InnerText If Len(newsDescription) > 500 Then newsDescription = Left(newsDescription, 200) End If newsDescription = FilterHtml(newsDescription) Case "category" newsCategory = objNode1.InnerText Case "author" newsAuthor = objNode1.InnerText Case "pubDate" newsPubDate = objNode1.InnerText End Select Next strNodes += " "&newsdscrp=" & Server.UrlEncode(newsDescription) & "&newscat=" & Server.UrlEncode(newsCategory) & _ "&newsauthor=" & Server.UrlEncode(newsAuthor) & "&newsdate=" & Server.UrlEncode(newsPubDate) & _ " target=_blank>" & newsTitle & " " End If i = i + 1 If i > showNewsCount Then Exit For Next End If LoadRSS = strNodes Catch objErr As Exception LoadRSS = "RSS Feed 源数据出错!" End Try End Function |
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