Javascript uses ajax to dynamically obtain data display from xml files _ javascript skills

This article mainly introduces how JS uses ajax to dynamically obtain data display from xml files. The example shows how javascript uses Ajax to operate XML files, which has some reference value, for more information about how to use ajax to dynamically obtain data display from an xml file, see the following example. Share it with you for your reference. The specific analysis is as follows:

The following JS code uses ajax to retrieve the content of an xml file and dynamically display it on a webpage.

《script》function loadXMLDoc(url){var xmlhttp;var txt,x,xx,i;if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); }else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); }xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200)  {  txt="
 
  ";   xx=x[i].getElementsByTagName("TITLE");    {    try     {     txt=txt + "
 
 
 "; x=xmlhttp.responseXML.documentElement.getElementsByTagName("CD"); for (i=0;i 
   "; } catch (er) { txt=txt + " 
    "; } } xx=x[i].getElementsByTagName("ARTIST"); { try { txt=txt + " 
    "; } catch (er) { txt=txt + " 
    "; } } txt=txt + " 
   "; } txt=txt + " 
  

  
  
 
   
 
    
Title
 
    
Artist
 
   
 
    
" + xx[0].firstChild.nodeValue + "
 
" + xx[0].firstChild.nodeValue + "
 
 
 
";  document.getElementById('txtCDInfo').innerHTML=txt;  } }xmlhttp.open("GET",url,true);xmlhttp.send();}《script》
Get CD info

The content of the xml file is as follows:

 
  
   Empire BurlesqueBob Dylan
   
    USA
   
   
    Columbia
   
   
    10.90
   
   
    1985
   
  
  
   Hide your heartBonnie Tyler
   
    UK
   
   
    CBS Records
   
   
    9.90
   
   
    1988
   
  
  
   Greatest HitsDolly Parton
   
    USA
   
   
    RCA
   
   
    9.90
   
   
    1982
   
  
  
   Still got the bluesGary Moore
   
    UK
   
   
    Virgin records
   
   
    10.20
   
   
    1990
   
  
  
   ErosEros Ramazzotti
   
    EU
   
   
    BMG
   
   
    9.90
   
   
    1997
   
  
  
   One night onlyBee Gees
   
    UK
   
   
    Polydor
   
   
    10.90
   
   
    1998
   
  
  
   Sylvias MotherDr.Hook
   
    UK
   
   
    CBS
   
   
    8.10
   
   
    1973
   
  
  
   Maggie MayRod Stewart
   
    UK
   
   
    Pickwick
   
   
    8.50
   
   
    1990
   
  
  
   RomanzaAndrea Bocelli
   
    EU
   
   
    Polydor
   
   
    10.80
   
   
    1996
   
  
  
   When a man loves a womanPercy Sledge
   
    USA
   
   
    Atlantic
   
   
    8.70
   
   
    1987
   
  
  
   Black angelSavage Rose
   
    EU
   
   
    Mega
   
   
    10.90
   
   
    1995
   
  
  
   1999 Grammy NomineesMany
   
    USA
   
   
    Grammy
   
   
    10.20
   
   
    1999
   
  
  
   For the good timesKenny Rogers
   
    UK
   
   
    Mucik Master
   
   
    8.70
   
   
    1995
   
  
  
   Big Willie styleWill Smith
   
    USA
   
   
    Columbia
   
   
    9.90
   
   
    1997
   
  
  
   Tupelo HoneyVan Morrison
   
    UK
   
   
    Polydor
   
   
    8.20
   
   
    1971
   
  
  
   SoulsvilleJorn Hoel
   
    Norway
   
   
    WEA
   
   
    7.90
   
   
    1996
   
  
  
   The very best ofCat Stevens
   
    UK
   
   
    Island
   
   
    8.90
   
   
    1990
   
  
  
   StopSam Brown
   
    UK
   
   
    A and M
   
   
    8.90
   
   
    1988
   
  
  
   Bridge of SpiesT'Pau
   
    UK
   
   
    Siren
   
   
    7.90
   
   
    1987
   
  
  
   Private DancerTina Turner
   
    UK
   
   
    Capitol
   
   
    8.90
   
   
    1983
   
  
  
   Midt om nattenKim Larsen
   
    EU
   
   
    Medley
   
   
    7.80
   
   
    1983
   
  
  
   Pavarotti Gala ConcertLuciano Pavarotti
   
    UK
   
   
    DECCA
   
   
    9.90
   
   
    1991
   
  
  
   The dock of the bayOtis Redding
   
    USA
   
   
    Atlantic
   
   
    7.90
   
   
    1987
   
  
  
   Picture bookSimply Red
   
    EU
   
   
    Elektra
   
   
    7.20
   
   
    1985
   
  
  
   RedThe Communards
   
    UK
   
   
    London
   
   
    7.80
   
   
    1987
   
  
  
   Unchain my heartJoe Cocker
   
    USA
   
   
    EMI
   
   
    8.20
   
   
    1987
   
  
 

I hope this article will help you design javascript programs.