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Create an XMLHttpRequest object

Source: Internet
Author: User
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Utl. js
Copy codeThe Code is as follows: function createXmlTree (node, indent ){

If (node = null)
Return "";
Var str = "";

Switch (node. nodeType ){
Case 1: // Element
Str + = "<div class = 'element'> <span class = 'elementname'>" + node. nodeName + "</span> ";

Var attrs = node. attributes;
For (var I = 0; I <attrs. length; I ++)
Str + = createXmlAttribute (attrs [I]);

If (! Node. hasChildNodes ())
Return str + "/> </div> ";

Str + = "> <br/> ";

Var cs = node. childNodes;
For (var I = 0; I <cs. length; I ++)
Str + = createXmlTree (cs [I], indent + 3 );

Str + = "</<span class = 'elementname'>" + node. nodeName + "</span> </div> ";
Break;

Case 9: // Document
Var cs = node. childNodes;
For (var I = 0; I <cs. length; I ++)
Str + = createXmlTree (cs [I], indent );
Break;

Case 3: // Text
If (! /^ \ S * $/. test (node. nodeValue ))
Str + = "<span class = 'text'>" + node. nodeValue + "</span> <br/> ";
Break;

Case 7: // ProcessInstruction
Str + = "<? "+ Node. nodeName;

Var attrs = node. attributes;
For (var I = 0; I <attrs. length; I ++)
Str + = createXmlAttribute (attrs [I]);

Str + = "?> <Br/>"
Break;

Case 4: // CDATA
Str = "<div class = 'cdata'> <! [CDATA [<span class = 'cdata-content'> "+
Node. nodeValue +
"</Span>]" + "]> </div> ";
Break;

Case 8: // Comment
Str = "<div class = 'comment'> <! -- <Span class = 'comment-content'> "+
Node. nodeValue +
"</Span> --> </div> ";
Break;

Case 10:
Str = "<div class = 'doctype'> <! DOCTYPE "+ node. name;
If (node. publicId ){
Str + = "PUBLIC \" "+ node. publicId + "\"";
If (node. systemId)
Str + = "\" "+ node. systemId + "\"";
}
Else if (node. systemId ){
Str + = "SYSTEM \" "+ node. systemId + "\"";
}
Str + = "> </div> ";

// TODO: Handle custom DOCTYPE declarations (ELEMENT, ATTRIBUTE, ENTITY)

Break;

Default:
// Alert (node. nodeType + "\ n" + node. nodeValue );
Inspect (node );
}

Return str;
}

Function inspect (obj ){
Var str = "";
For (var k in obj)
Str + = "obj." + k + "=" + obj [k] + "\ n ";
Window. alert (str );
}

Function createXmlAttribute (){
Return "<span class = 'bbname'>" +. nodeName + "</span> <span class = 'bbvalue'> = \" "+. nodeValue + "\" </span> ";
}
Copy codeThe Code is as follows:

<HTML> <HEAD> <TITLE> Ajax test </TITLE>
<META http-equiv = Content-Type content = "text/html; charset = gb2312">
<SCRIPT src = "Ajax test_files/utl. js"> </SCRIPT>
<LINK rev = stylesheet media = all href = "Ajax test_files/Ajax.css" type = text/css
Rel = stylesheet>
<SCRIPT>
// ------------ XMLHttpObj class ----------------
Function XMLHttpObject (url, Syne ){
Var XMLHttp = null
Var o = this
This. url = url
This. Syne = Syne
This. sendData = function ()
{
If (window. XMLHttpRequest ){
XMLHttp = new XMLHttpRequest ();
} Else if (window. ActiveXObject ){
XMLHttp = new ActiveXObject ("Microsoft. XMLHTTP ");
}
With (XMLHttp ){
Open ("GET", this. url, this. Syne );
Onreadystatechange = o. CallBack;
Send (null );
}
}

This. CallBack = function ()
{
If (XMLHttp. readyState = 4 ){
If (XMLHttp. status = 200 ){
O. debugXML ("readyState:" + XMLHttp. readyState + "<br/> ")
O. debugXML ("status:" + XMLHttp. status + "<br/> ")
O. debugXML ("<div style = 'background: # ffc; margin-left: 10px; border: 1px solid #669; padding: 3px '>" + createXmlTree (XMLHttp. responseXML, 0) + "</div> ")
}
}

}

This. getText = function ()
{
If (XMLHttp = null) {return "XMLHttpRequest has not been loaded "}
If (XMLHttp. readyState = 4) {return XMLHttp. responseText}
Return XMLHttp. readyState
}

This. debugXML = function (log)
{
Try {document. getElementById ("XMLDebug"). innerHTML ++ = log}
Catch (e ){}
}
}
Var XMLDoc1 = new XMLHttpObject ("tree. xml", true)

</SCRIPT>

<META content = "MSHTML 6.00.20.0.2706" name = GENERATOR> </HEAD>
<BODY> <SELECT
Onchange = 'xmldoc1. url = this. value; document. getElementById ("XMLDebug"). innerHTML = "" '>
<OPTION value = tree. xml selected> tree. xml </OPTION> <OPTION
Value = xtree. xsl> xtree. xsl </OPTION> <OPTION value =/feed. asp> Blog
Feed </OPTION> </SELECT> <INPUT onclick = XMLDoc1.sendData () type = button value = XMLDoc1.sendData ()> <INPUT onclick = alert (XMLDoc1.getText ()) type = button value = XMLDoc1.getText ()> <INPUT onclick = "if (confirm ('clear log? ') {Document. getElementById ('xmldebug'). innerHTML = ''}" type = button value = ClearLog>

<DIV id = XMLDebug> </DIV> </BODY> </HTML>


Copy codeThe Code is as follows:
HTML {
BORDER-TOP-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px
}
BODY {
BORDER-TOP-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px
}
BODY {
BACKGROUND: buttonface; FONT: Message-Box
}
FORM {
PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-TOP: 0px
}
FIELDSET {
MARGIN: 5px
}
BUTTON {
MARGIN-LEFT: 5px
}
TEXTAREA {
WIDTH: 100%; HEIGHT: 200px
}
# Out {
BORDER-RIGHT: threeddarkshadow 1px solid; PADDING-RIGHT: 3px; BORDER-TOP: threeddarkshadow 1px solid; MARGIN-TOP: 5px; PADDING-LEFT: 3px; BACKGROUND: white; PADDING-BOTTOM: 3px; BORDER-LEFT: threeddarkshadow 1px solid; COLOR: black; PADDING-TOP: 3px; BORDER-BOTTOM: threeddarkshadow 1px solid; FONT-FAMILY: Verdana
}
# SrcTextContainer {
DISPLAY: none
}
. Element {
PADDING-LEFT: 16px; COLOR: blue
}
. Elementname {
COLOR: darkred
}
. Attribname {
COLOR: red
}
. Attribvalue {
COLOR: blue
}
. Text {
PADDING-LEFT: 16px; COLOR: windowtext
}
. Cdata-content {
DISPLAY: block; PADDING-LEFT: 16px; BORDER-LEFT: gray 1px solid; COLOR: windowtext; FONT-FAMILY: Courier New; WHITE-SPACE: pre
}
. Comment {
PADDING-LEFT: 16px; COLOR: blue
}
. Doctype {
PADDING-LEFT: 16px; COLOR: blue
}
. Comment-content {
DISPLAY: block; COLOR: gray; FONT-FAMILY: Courier New; WHITE-SPACE: pre
}
# XMLDebug {
BORDER-RIGHT: #000 1px solid; PADDING-RIGHT: 4px; BORDER-TOP: #000 1px solid; MARGIN-TOP: 6px; PADDING-LEFT: 4px; FONT-SIZE: 12px; BACKGROUND: # fff; PADDING-BOTTOM: 4px; OVERFLOW: auto; BORDER-LEFT: #000 1px solid; PADDING-TOP: 4px; BORDER-BOTTOM: #000 1px solid; HEIGHT: 400px
}

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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