<% '-------------------------------------------------------------------- 'The "addNewContacttoXML" Function accepts two parameters. 'strXMLFilePath - The physical path where the XML file will be saved. 'strFileName - The name of the XML file that will be saved. '-------------------------------------------------------------------- Function addNewContacttoXML(strXMLFilePath, strFileName) 'Declare local variables. Dim objDom Dim objRoot Dim objRecord Dim objField Dim objFieldValue Dim objattID Dim objattTabOrder Dim objPI Dim blnFileExists Dim x 'Instantiate the Microsoft XMLDOM. Set objDom = server.CreateObject("Microsoft.XMLDOM") objDom.preserveWhiteSpace = True 'Call the Load Method of the XMLDOM Object. The Load ethod has a 'boolean return value indicating whether or not the file could be 'loaded. If the file exists and loads it will return true, otherwise, 'it will return false.
'Test to see if the file loaded successfully. If blnFileExists = True Then 'If the file loaded set the objRoot Object equal to the root element 'of the XML document. Set objRoot = objDom.documentElement Else 'Create your root element and append it to the XML document. Set objRoot = objDom.createElement("rolodex") objDom.appendChild objRoot End If 'Create the new container element for the new record. Set objRecord = objDom.createElement("contact") objRoot.appendChild objRecord 'Iterate through the Form Collection of the Request Object. For x = 1 To Request.Form.Count 'Check to see if "btn" is in the name of the form element. If it is, 'then it is a button and we do not want to add it to the XML 'document". If instr(1,Request.Form.Key(x),"btn") = 0 Then 'Create an element, "field". Set objField = objDom.createElement("field") 'Create an attribute, "id". Set objattID = objDom.createAttribute("id")
'Set the value of the id attribute equal the the name of the current 'form field. objattID.Text = Request.Form.Key(x) 'The setAttributeNode method will append the id attribute to the 'field element. objField.setAttributeNode objattID 'Create another attribute, "taborder". This just orders the 'elements.
Set objattTabOrder = objDom.createAttribute("taborder")
'Set the value of the taborder attribute. objattTabOrder.Text = x 'Append the taborder attribute to the field element. 'objField.setAttributeNode objattTabOrder 'Create a new element, "field_value".
Set objFieldValue = objDom.createElement("field_value")
'Set the value of the field_value element equal to the value of the 'current field in the Form Collection.
objFieldValue.Text = Request.Form(x)
'Append the field element as a child of the new record container 'element, contact. objRecord.appendChild objField 'Append the field_value element as a child of the field element. objField.appendChild objFieldValue End If Next
'Check once again to see if the file loaded successfully. If it did 'not, that means we are creating a new document and need to be sure to 'insert the XML processing instruction.
If blnFileExists = False then
'Create the xml processing instruction. Set objPI = objDom.createProcessingInstruction("xml", "version='1.0'")
'Append the processing instruction to the XML document.
objDom.insertBefore objPI, objDom.childNodes(0) End If
'Save the XML document.
objDom.save strXMLFilePath & "\" & strFileName
'Release all of your object references. Set objDom = Nothing
Set objRoot = Nothing Set objRecord = Nothing Set objField = Nothing Set objFieldValue = Nothing Set objattID = Nothing Set objattTabOrder = Nothing Set objPI = NothingEnd
Function 'Do not break on an error.
On Error Resume Next
'Call the addNewContacttoXML function, passing in the physical path to 'save the file to and the name that you wish to use for the file.
addNewContacttoXML "c:","rolodex.xml" 'Test to see if an error occurred, if so, let the user know. 'Otherwise, tell the user that the operation was successful.
If err.number <> 0 then Response.write("Errors occurred while saving your form submission.") Else Response.write("Your form submission has been saved.") End If %>
'Call the Load Method of the XMLDOM Object. The Load Method has a 'boolean return value indicating whether or not the file could be 'loaded. If the file exists and loads it will return true, otherwise, 'it will return false.
'Check once again to see if the file loaded successfully. If it did 'not, that means we are creating a new document and need to be sure to 'insert the XML processing instruction.
If blnFileExists = False then
'Create the xml processing instruction.
Set objPI = objDom.createProcessingInstruction("xml", "version='1.0'")
'Append the processing instruction to the XML document. objDom.insertBefore objPI, objDom.childNodes(0) End If
除开以上两点不同之处外,你可以发现 保存数据至新文件的代码实际上是与 附加新record至存在文件的代码是一样的。我们创建一个新的element, contact CONTAINER,以便能容下每个新添的RECORD。代码将会在Form Collection of the Request Objec中不断重复以创建适合的XML节点并将这些节点值设置得与当前Form Field.一样。