用ajax实现读博客rss示例代码

复制代码 代码如下:

<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN”

“http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”>

<html xmlns=”http://www.w3.org/1999/xhtml”>

<head>

<title>this is test</title>

<script type=”text/javascript”>

var xmlHttp;

function createXMLHttpRequest() {

if (window.ActiveXObject) {

xmlHttp = new ActiveXObject(“Microsoft.XMLHTTP”);

}

else if (window.XMLHttpRequest) {

xmlHttp = new XMLHttpRequest();

}

}

function readRSS(url) {

createXMLHttpRequest();

xmlHttp.onreadystatechange = handleStateChange;

xmlHttp.open(“GET”, url, true);

xmlHttp.send(null);

}

function handleStateChange() {

if(xmlHttp.readyState == 4) {

if(xmlHttp.status == 200) {

ResultSet();

}

}

}

function ResultSet() {

var results = xmlHttp.responseXML;

var title = null;

var item = null;

var link=null;

//得到channel

var ccc=results.getElementsByTagName(“channel”);

var headtitle=ccc[0].getElementsByTagName(“title”)[0].firstChild.nodeValue;

var headlink=ccc[0].getElementsByTagName(“link”)[0].firstChild.nodeValue;

var cell = document.createElement(“div”);

cell.innerHTML=”<h1><a href=”+headlink+” target=_blank>”+headtitle+”</a></h1>

“;

document.getElementById(“result”).appendChild(cell);

//得到items

var items = results.getElementsByTagName(“item”);

for(var i = 0; i < items.length; i++) {

item = items[i];

link=item.getElementsByTagName(“link”)[0].firstChild.nodeValue;

title = item.getElementsByTagName(“title”)[0].firstChild.nodeValue;

var cell = document.createElement(“div”);

cell.innerHTML=”<a href=”+link+” target=_blank>”+title+”</a>

“;

document.getElementById(“result”).appendChild(cell);

}

}

function readrss1()

{

var url=document.getElementById(“txturl”).value;

if(url==””)

{

alert(“请输入RSS地址”);

}

else

{

readRSS(url);

}

}

</script>

</head>

<body”>

<h1>ajax读rss示例</h1>

<form >

<a href=”javascript:readRSS(‘http://www.blogjava.net/rss.aspx’)”>blogjava原创区 </a>

<a href=”javascript:readRSS(‘http://beginner.blogjava.net/rss.aspx’)”>blogjava新手区 </a>

<a href=”javascript:readRSS(‘http://life.blogjava.net/rss.aspx’)”>blogjava非技术区 </a>

<a href=”javascript:readRSS(‘http://general.blogjava.net/rss.aspx’)”>综合区 </a>

输入一个RSS地址:<input type=”text” value=”http://www.blogjava.net/wujun/rss.aspx” size=50 id=”txturl”>

<input type=”button” value=”查 看” onclick=”readrss1()”>

</form>

<div id=”result”></div>

</body>

</html>

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