將HTML表單數據存儲為XML格式 - 2

2019-11-18 21:41:06

字體：大中小

來源：轉載

供稿：網友

文檔被存檔之后，如果你再打開這個文檔，那么則會以如下代碼列表形式出現：

MyxmlDoc.xml:

<?xml version="1.0"?>
<rootElement>
<childElement1 />
<childElement2 />
</rootElement>

　　在"MyXMLDoc.xml"文檔中，childElement1 和 childElement2 會以空的elements形式出現。如果它們被賦值，那么每
個值都將由標記符括起來。

　　現在，讓我們來思考一下如何將HTML數據寫到XML文檔中去。我們已經知道該如何創建和存儲XML文檔。將一個表單數
據寫到XML文檔中去的過程，現在已演變成為Request Object"s Form Collection以及將每一個表單域的value書定到XML
element value 中去的步驟重復。以上可以通過asp來完成。

例：將數據輸送到XML

　　現在，我們舉一個普通的HTML表單的例子來說明。此Form有用戶名，地址，電話，以及E-MAIL等幾個域。并將這些信
息寫入XML文件中并保存。

EnterContact.html:
<html>
<head>
<title>
Contact Information
</title>
</head>
<body>
<form action="PRocessForm.asp" method="post">

<h3>請輸入你的聯系方式</h3>
First Name: <input type="text" id="firstName" name="firstName"><br>
Last Name: <input type="text" id="lastName" name="lastName"><br>
Address #1: <input type="text" id="address1" name="address1"><br>
Address #2: <input type="text" id="address2" name="address2"><br>
Phone Number: <input type="text" id="phone" name="phone"><br>
E-Mail: <input type="text" id="email" name="email"><br>
<input type="submit" id="btnSub" name="btnSub" value="Submit"><br>
</form>
</body>
</html>

　　將Form 中數據發送到processForm.asp.。這是一個ASP頁面，在這個ASP中將反復調用同一個函數將form數據寫入XML
文件。

processForm.asp:

<%
"--------------------------------------------------------------------
"The "ConvertFormtoXML" Function accepts to parameters.
"strXMLFilePath - The physical path where the XML file will be saved.
"strFileName - The name of the XML file that will be saved.
"--------------------------------------------------------------------

Function ConvertFormtoXML(strXMLFilePath, strFileName)

"Declare local variables.

Dim objDom
Dim objRoot
Dim objField
Dim objFieldValue
Dim objattID
Dim objattTabOrder
Dim objPI
Dim x

"Instantiate the Microsoft XMLDOM.

Set objDom = server.CreateObject("Microsoft.XMLDOM")

objDom.preserveWhiteSpace = True

"Create your root element and append it to the XML document.

Set objRoot = objDom.createElement("contact")
objDom.appendChild objRoot

"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 root element.

objRoot.appendChild objField

"Append the field_value element as a child of the field elemnt.

objField.appendChild objFieldValue
End If
Next

"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)

"Save the XML document.

objDom.save strXMLFilePath & "/" & strFileName

"Release all of your object references.

Set objDom = Nothing
Set objRoot = Nothing
Set objField = Nothing
Set objFieldValue = Nothing
Set objattID = Nothing
Set objattTabOrder = Nothing
Set objPI = Nothing
End Function

"Do not break on an error.

On Error Resume Next

"Call the ConvertFormtoXML function, passing in the physical path to
"save the file to and the name that you wish to use for the file.

ConvertFormtoXML "c:","Contact.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
%>

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