Ajax学习笔记
Ajax技术中的xmlhttp.send()方法提供我们传送大量数据的功能,要使用该功能,首先要将要传到服务端的数据封装在一个xml对象中,在将这个xml对象的xml属性做为send()方法的参数就可以:varguidArray = guidlist.split( " , " );
varxmlDom = newActiveXObject( " MSXML2.DOMDocument " );
xmlDom.loadXML( "" );
vardomRoot =xmlDom.createElement( " NewDataSet " );
xmlDom.appendChild(domRoot);
for ( vari = 0 ; i < guidArray.length; i ++ )
{
varnode =xmlDom.createElement( " guid " );
node.text = guidArray ;
domRoot.appendChild(node);
}
varxmlhttp = newActiveXObject( " MSXML2.XMLHTTP " );
xmlhttp.onreadystatechange = function (){
if(xmlhttp.readyState == 4 )
{
if(xmlhttp.status == 200 )
{
alert( " 处理完成 " );
}
else
{
alert(xmlhttp.responseText);
}
}
}
xmlhttp.Open( " POST " , " fmSmsPostProcess.aspx?sStatus= " + escape(sStatus) + " &sProcessResult= " + escape(document.getElementById( " btProcessResult " ).value) +
" &sReStore= " + escape(document.getElementById( " btReStore " ).value), true );
xmlhttp.setRequestHeader( " Content-Type " , " text/xml " );
xmlhttp.send(xmlDom.xml);
服务端需要从请求流中,解析出客户端传入的xml的内容,服务端代码:
System.IO.Stream instream = Page.Request.InputStream;
BinaryReader br = new BinaryReader(instream,System.Text.Encoding.UTF8);
byte[] byt = br.ReadBytes((int)instream.Length);
string sXml = System.Text.Encoding.UTF8.GetString(byt);
System.Xml.XmlDocument xmlDoc = new System.Xml.XmlDocument();
xmlDoc.LoadXml(sXml);
XmlElement xe= xmlDoc.DocumentElement ;
for(int i=0 ; i< xe.ChildNodes.Count ; i++)
{
sGuid = sGuid + ",'" + xe.ChildNodes.InnerText+"'";
}
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