用ajax实现读博客rss示例代码
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2023-11-13 18:00:46
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>
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>