Question

<tour-objects>
  <object model="tourname" tn="1">
    <field name="name" type="CharField">Tour Name 1</field>
    <field name="tour_image" type="FileField">http://url.com/images/picture.jpg</field>
  </object>
  <object model="tourname" tn="2">
    <field name="name" type="CharField">Tour Name 2</field>
  </object>
  <object model="tourname" tn="3">
    <field name="name" type="CharField">Tour Name 3</field>
  </object>
</tour-objects>

使用ASP解析XML的问题。 XML代码结构类似于上面的代码。

Set objXML = Server.CreateObject("Microsoft.XMLDOM")
objXML.Async = False
objXML.SetProperty "ServerHTTPRequest", True
objXML.ResolveExternals = True
objXML.ValidateOnParse = True
objXML.Load(Server.MapPath("data.xml"))

Set Objects = objXML.SelectNodes("//tour-objects/object[@model='tourname']")

For i = 0 To Objects.Length-1

    For Each objNode In Objects(i).childNodes

        Select Case Lcase(objNode.nodeName)
            Case "field"
            fld = objNode.getAttribute("name")
            Select Case fld
                Case "name"
                    txt_name = objNode.text
                Case "tour_image"
                    txt_tour_image = objNode.text
            End Select
        End Select

    Next    
    Response.Write("name: " & txt_name &"<br>")
    Response.Write("tour_image: " & txt_tour_image &"<br><br>")
Next

并非每个节点都包含Tour_image。因此，当我解析时，出现以下错误。看来tour_image部分位于第二和第三节点上。

name: Tour Name 1
tour_image: http://url.com/images/picture.jpg

name: Tour Name 2
tour_image: http://url.com/images/picture.jpg

name: Tour Name 3
tour_image: http://url.com/images/picture.jpg

我在哪里犯错误？如果您能帮助我，我会很高兴。

Answer 1

txt_name和txt_tour_image定义一次。发生的事情是第一个对象节点将txt_tour_image设置为http://url.com/images/picture.jpg。下一个对象没有名称为tour_image的字段。由于它没有一个，因此txt_tour_image不会更改，并且将保持不变，直到有一个带有tour_image的节点为止。

一旦进入for循环，就需要重置这两个变量

For i = 0 To Objects.Length-1
      txt_name = ""
      txt_tour_image = ""

经典ASP XML解析问题

1 个答案: