Ajax
数据格式_HTML
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实例
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index.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Perple at Clearleft</title> <style type="text/css"> @import url("clearleft.css"); </style> <script type="text/javascript"> window.onload=function(){ var aNodes=document.getElementsByTagName("a"); for(var i=0;i<aNodes.length;i++){ aNodes[i].onclick=function(){ var request=new XMLHttpRequest(); var method="GET"; var url=this.href; request.open(method,url); request.send(null); request.onreadystatechange=function(){ if(request.readyState == 4){ if(request.status == 200 || request.status ==304){ document.getElementById("details").innerHTML=request.responseText; } } } return false; } } }; </script> </head> <body> <h1>People</h1> <ul> <li><a href="files/andy.html">Andy</a></li> <li><a href="files/richard.html">Richard</a></li> <li><a href="files/jeremy.html">Jeremy</a></li> </ul> <div id="details"></div> </body> </html> -
效果
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数据格式_XML
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index.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Perple at Clearleft</title> <style type="text/css"> @import url("clearleft.css"); </style> <script type="text/javascript"> window.onload=function(){ var aNodes=document.getElementsByTagName("a"); for(var i=0;i<aNodes.length;i++){ aNodes[i].onclick=function(){ var request=new XMLHttpRequest(); var method="GET"; var url=this.href; request.open(method,url); request.send(null); request.onreadystatechange=function(){ if(request.readyState == 4){ if(request.status == 200 || request.status ==304){ //1.结果为XML格式，所以需要使用responseXML来获取 var result=request.responseXML; //2.结果不能直接使用，必须先创建对应的节点，再把节点加入到 #details中 //目标格式为: /* <h2><a href="mailto:andy@clearleft.com">Andy Budd</a></h2> <a href="http://andybudd.com/">http://andybudd.com/</a> */ var name=result.getElementsByTagName("name")[0].firstChild.nodeValue; var website=result.getElementsByTagName("website")[0].firstChild.nodeValue; var email=result.getElementsByTagName("email")[0].firstChild.nodeValue; //alert(name); //alert(website); //alert(email); var aNode=document.createElement("a"); aNode.appendChild(document.createTextNode(name)); aNode.href="mailto:"+email; var h2Node=document.createElement("h2"); h2Node.appendChild(aNode); var aNode2=document.createElement("a"); aNode2.appendChild(document.createTextNode(website)); aNode2.href=website; var detailsNode=document.getElementById("details"); detailsNode.innerHTML=""; detailsNode.appendChild(h2Node); detailsNode.appendChild(aNode2); } } } return false; } } }; </script> </head> <body> <h1>People</h1> <ul> <li><a href="files/andy.xml">Andy</a></li> <li><a href="files/richard.xml">Richard</a></li> <li><a href="files/jeremy.xml">Jeremy</a></li> </ul> <div id="details"></div> </body> </html> -
andy.xml
<?xml version="1.0" encoding="UTF-8"?> <details> <name>Andy Budd</name> <website>http://andtbudd.com</website> <email>andy@clearleft.com</email> </details> -
效果
数据格式_JSON
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index.html
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <script type="text/javascript"> window.onload=function(){ var aNodes=document.getElementsByTagName("a"); for(var i=0;i<aNodes.length;i++){ aNodes[i].onclick=function(){ var request=new XMLHttpRequest(); var method="GET"; var url=this.href; request.open(method,url); request.send(null); request.onreadystatechange=function(){ if(request.readyState == 4){ if(request.status == 200 || request.status ==304){ var result=request.responseText; var object=eval("("+result+")"); //2.结果不能直接使用，必须先创建对应的节点，再把节点加入到 #details中 //目标格式为: /* <h2><a href="mailto:andy@clearleft.com">Andy Budd</a></h2> <a href="http://andybudd.com/">http://andybudd.com/</a> */ var name=object.person.name; var website=object.person.website; var email=object.person.email; var aNode=document.createElement("a"); aNode.appendChild(document.createTextNode(name)); aNode.href="mailto:"+email; var h2Node=document.createElement("h2"); h2Node.appendChild(aNode); var aNode2=document.createElement("a"); aNode2.appendChild(document.createTextNode(website)); aNode2.href=website; var detailsNode=document.getElementById("details"); detailsNode.innerHTML=""; detailsNode.appendChild(h2Node); detailsNode.appendChild(aNode2); } } } return false; } } }; </script> </head> <body> <h1>People</h1> <ul> <li><a href="files/andy.js">Andy</a></li> <li><a href="files/richard.js">Richard</a></li> <li><a href="files/jeremy.js">Jeremy</a></li> </ul> <div id="details"></div> </body> </html> -
andy.js
{"person":{ "name":"Andy Budd", "website":"http://andybudd.com", "email":"andy@clearleft.com" } } -
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效果
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