XML学习（三） js保存xml的示例代码分享
.aspx页利用XMLHTTPrequest发送修改过的xml，在接受也接收保存。
主要语句
xmlHttp.open("POST", "receive.aspx?type=xmlsave", true);
xmlHttp.send(xmlDoc);
代码
<p><!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />--><span style="max-width:90%"><</span><span style="color: #800000;">html </span><span style="color: #ff0000;">xmlns</span><span style="color: #0000ff;">="http://www.w3.org/1999/xhtml"</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">head </span><span style="color: #ff0000;">runat</span><span style="color: #0000ff;">="server"</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">script </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text/javascript"</span><span style="color: #0000ff;">></span><span style="background-color: #f5f5f5; color: #000000;"><br></span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;"> parseXML() {<br></span><span style="background-color: #f5f5f5; color: #0000ff;">try</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">Internet Explorer</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> {<br> xmlDoc </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">new</span><span style="background-color: #f5f5f5; color: #000000;"> ActiveXObject(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">Microsoft.XMLDOM</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">);<br> }<br></span><span style="background-color: #f5f5f5; color: #0000ff;">catch</span><span style="background-color: #f5f5f5; color: #000000;"> (e) { <br></span><span style="background-color: #f5f5f5; color: #0000ff;">try</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">Firefox, Mozilla, Opera, etc.</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> {<br> xmlDoc </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> document.implementation.createDocument(</span><span style="background-color: #f5f5f5; color: #000000;">""</span><span style="background-color: #f5f5f5; color: #000000;">, </span><span style="background-color: #f5f5f5; color: #000000;">""</span><span style="background-color: #f5f5f5; color: #000000;">, </span><span style="background-color: #f5f5f5; color: #0000ff;">null</span><span style="background-color: #f5f5f5; color: #000000;">);<br> }<br></span><span style="background-color: #f5f5f5; color: #0000ff;">catch</span><span style="background-color: #f5f5f5; color: #000000;"> (e) {<br> alert(e.message);<br></span><span style="background-color: #f5f5f5; color: #0000ff;">return</span><span style="background-color: #f5f5f5; color: #000000;">;<br> }<br> }<br> xmlDoc.async </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">false</span><span style="background-color: #f5f5f5; color: #000000;">; </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">假如xml载入完毕执行以下</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> xmlDoc.load(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">note.xml</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">);<br><br><br> xmlDoc.getElementsByTagName(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">to</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">)[</span><span style="background-color: #f5f5f5; color: #000000;">0</span><span style="background-color: #f5f5f5; color: #000000;">].childNodes[</span><span style="background-color: #f5f5f5; color: #000000;">0</span><span style="background-color: #f5f5f5; color: #000000;">].nodeValue </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">yaomingming</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">;<br><br></span><span style="background-color: #f5f5f5; color: #0000ff;">var</span><span style="background-color: #f5f5f5; color: #000000;"> xmlHttp;<br><br></span><span style="background-color: #f5f5f5; color: #0000ff;">try</span><span style="background-color: #f5f5f5; color: #000000;"> {<br></span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;"> Firefox, Opera 8.0+, Safari</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> xmlHttp </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">new</span><span style="background-color: #f5f5f5; color: #000000;"> XMLHttpRequest();<br> }<br></span><span style="background-color: #f5f5f5; color: #0000ff;">catch</span><span style="background-color: #f5f5f5; color: #000000;"> (e) {<br><br></span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;"> Internet Explorer</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">try</span><span style="background-color: #f5f5f5; color: #000000;"> {<br> xmlHttp </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">new</span><span style="background-color: #f5f5f5; color: #000000;"> ActiveXObject(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">Msxml2.XMLHTTP</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">);<br> }<br></span><span style="background-color: #f5f5f5; color: #0000ff;">catch</span><span style="background-color: #f5f5f5; color: #000000;"> (e) {<br><br></span><span style="background-color: #f5f5f5; color: #0000ff;">try</span><span style="background-color: #f5f5f5; color: #000000;"> {<br> xmlHttp </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">new</span><span style="background-color: #f5f5f5; color: #000000;"> ActiveXObject(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">Microsoft.XMLHTTP</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">);<br> }<br></span><span style="background-color: #f5f5f5; color: #0000ff;">catch</span><span style="background-color: #f5f5f5; color: #000000;"> (e) {<br> alert(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">您的浏览器不支持AJAX！</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">);<br></span><span style="background-color: #f5f5f5; color: #0000ff;">return</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">false</span><span style="background-color: #f5f5f5; color: #000000;">;<br> }<br> }<br> }<br> xmlHttp.onreadystatechange </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;">() { </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">onreadystatechange 属性存有处理服务器响应的函数</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #0000ff;">if</span><span style="background-color: #f5f5f5; color: #000000;"> (xmlHttp.readyState </span><span style="background-color: #f5f5f5; color: #000000;">==</span><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="background-color: #f5f5f5; color: #000000;">4</span><span style="background-color: #f5f5f5; color: #000000;">) { </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">readyState 属性存有服务器响应的状态信息</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> document.getElementById(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">to</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">).innerHTML </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> xmlHttp.responseText; </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">通过 responseText 属性来取回由服务器返回的数据</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> }<br> }<br> xmlHttp.open(</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">POST</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">, </span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">receive.aspx?type=xmlsave</span><span style="background-color: #f5f5f5; color: #000000;">"</span><span style="background-color: #f5f5f5; color: #000000;">, </span><span style="background-color: #f5f5f5; color: #0000ff;">true</span><span style="background-color: #f5f5f5; color: #000000;">); <br><br></span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;"> open() 方法需要三个参数。第一个参数定义发送请求所使用的方法（GET 还是 POST）。第二个参数规定服务器端脚本的 URL。第三个参数规定应当对请求进行异步地处理。</span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;"> xmlHttp.send(xmlDoc); </span><span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">send() 方法可将请求送往服务器 </span><span style="background-color: #f5f5f5; color: #008000;"><br></span><span style="background-color: #f5f5f5; color: #000000;">}</span></p><p><span style="background-color: #f5f5f5; color: #000000;"> </span><span style="color: #0000ff;"></</span><span style="color: #800000;">script</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"></</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">body </span><span style="color: #ff0000;">onload</span><span style="color: #0000ff;">="parseXML()"</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">form </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="form1"</span><span style="color: #ff0000;"> runat</span><span style="color: #0000ff;">="server"</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"><</span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span></p><p><span style="color: #0000ff;"> </span><span style="color: #000000;"> <span id="to"></span><br></span><span style="color: #0000ff;"></</span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"></</span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span><span style="color: #000000;"><br></span><span style="color: #0000ff;"></</span><span style="color: #800000;">html</span><span style="color: #0000ff;">></span></p>receive.aspx.cs
<p><!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />--><span style="color: #000000;"> System.IO.Stream instream </span><span style="color: #000000;">=</span><span style="color: #000000;"> Page.Request.InputStream;<br> BinaryReader br </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000ff;">new</span><span style="color: #000000;"> BinaryReader(instream, System.Text.Encoding.UTF8);<br></span><span style="color: #0000ff;">byte</span><span style="color: #000000;">[] byt </span><span style="color: #000000;">=</span><span style="color: #000000;"> br.ReadBytes((</span><span style="color: #0000ff;">int</span><span style="color: #000000;">)instream.Length);<br></span><span style="color: #0000ff;">string</span><span style="color: #000000;"> sXml </span><span style="color: #000000;">=</span><span style="color: #000000;"> System.Text.Encoding.UTF8.GetString(byt);<br><br> System.Xml.XmlDocument xmlDoc </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000ff;">new</span><span style="color: #000000;"> System.Xml.XmlDocument();<br> xmlDoc.LoadXml(sXml);<br> xmlDoc.Save(Server.MapPath(</span><span style="color: #800000;">"</span><span style="color: #800000;">note.xml</span><span style="color: #800000;">"</span><span style="color: #000000;">));<br><br> Response.Write(</span><span style="color: #800000;">"</span><span style="color: #800000;">save</span><span style="color: #800000;">"</span><span style="color: #000000;">);<br></span></p>
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