How to use Flash and Ajax to achieve non-refresh paging function
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In practical application, XML files are generally generated by background scripts, and then the data generated by them are manipulated.
Due to the lack of space, 1.xml 2.xml 3.xml will be used instead in this article. The background script does not provide instructions.
First, understand the structure of a XML:
The code is as follows:
Happiness terminal
Desperate termination station
Horror movie
...
... .
Let's start with a simple Flash
The code is as follows:
Function setxml (page) {
PageXml = new XML (); / / declare the XML object
PageXml.ignoreWhite = true; / / allow blanks
PageXml.load (page+ ".xml? rid=" + Math.random ()); / / read the XML file
PageXml.onLoad = function (success)
{
If (success)
{
ParseXml (pageXml); / / if read successfully, analyze the XML file
}
}
}
Function parseXml (pageXml) {
Xmlroot = ageXml.firstChild; / / define the XML root directory
For (iTunes 0, investors 0)
{
Var strName= "Msxml2.XMLHTTP"
If (navigator.appVersion.indexOf ("MSIE 5.5") > = 0) / / even IE has two declaration methods
{
StrName= "Microsoft.XMLHTTP"
}
Try
{
ObjXmlHttp=new ActiveXObject (strName)
ObjXmlHttp.onreadystatechange=handler
Return objXmlHttp
}
Catch (e)
{
Alert ("Error. Scripting for ActiveX might be disabled")
Return
}
}
Else
{
ObjXmlHttp=new XMLHttpRequest (); / / Firefox, Opera and so on all use this
ObjXmlHttp.onload=handler
ObjXmlHttp.onerror=handler
Return objXmlHttp
}
}
/ / the function to be called first can be regarded as the setxml () function in Flash above
Function showpage (no)
{
Document.getElementById ("loadstatus") [xss_clean] = "Lading..."
Var url = no+ ".xml? rid=" + Math.random ()
/ / stateChanged_showplist is the following function name, be careful not to add parentheses
XmlHttp=GetXmlHttpObject (stateChanged_showplist)
/ / the transfer method is GET, or you can choose POST mode. Sometimes, if you pass variables in Chinese, remember to set the file header.
XmlHttp.open ("GET", url, true)
XmlHttp.send (null)
}
/ / analyze XML function
Function stateChanged_showplist ()
{
If (xmlHttp.readyState==4 | | xmlHttp.readyState== "complete") / / xmlHttp.readyState==4 4 indicates the end of reading
{
Document.getElementById ("loadstatus") [xss_clean] = ""
Table = document.getElementById ("pagebody"); / / generate TALBE Element
For (I = table.rows.length-1; I > = 0; I -) / / delete the existing rows, otherwise the table will extend infinitely
Table.deleteRow (I)
Xmlroot = xmlHttp.responseXML.getElementsByTagName ("movie"); / / get the root required by XML
For (iPre0There i1)
{
Prepage = page*1-1
Var changpage = "previous page"
}
Else
{
Changpage = "previous page"
}
If (page
