AJAX初级应用-RSS无刷新聚合器的代码与下载第1/3页


            rss.js复制代码 代码如下:<!-- //控制ID function getId(objId){     return document.getElementById(objId) } //链接对应数组,请注明转载自http://www.cnrui.cn/blog function urlArrary(urlName){     switch(urlName){         case "clear":             return "http://www.cnrui.cn/blog/feed.asp"         case "a-fei":             return "http://www.a-fei.net/blog/rss.xml"         case "ryanxia":             return "http://www.ryanxia.com/blog/feedrss2.asp"         case "awflasher":             return "http://www.awflasher.com/blog/feed.asp"         case "seles":             return "http://www.cnrui.cn/seles/feedrss2.asp"         case "wawa":             return "http://a-fei.net/wawa/blog/rss2.php"         case "dreammx":             return "http://www.dreammx.com/xhyl/feed.asp"         default:             return false     } } //侧边栏控制,请注明自http://www.cnrui.cn/blog转载 function closebar(targetid,objId){     if(document.getElementById){         target = getId(targetid);         objsty = getId(objId);         if(target.style.display == "none"){             target.style.display = "";             main.style.width = "800px";             objsty.innerHTML = "关闭侧边栏"         }else{             target.style.display = "none";             main.style.width = "100%";             objsty.innerHTML = "开启侧边栏"         }     } } //加载变灰,注明自http://www.cnrui.cn/blog转载 function listen(a){     getId("prolist").className=a; } function btnSty(objId,objStyle) {     getId(objId).style.display = objStyle } //提示窗口控制 function ifodis(){     btnSty("loadifo","none"); } function settime(a){     setTimeout(a,1000); } function loadtime(){     getId("loadifo").innerHTML += "." } //数据入口 function ent(urlName){     window.location.hash = urlName     var frmUrl = saveState(urlName);//写入信息到ifream     var gamestart = loadrss(urlName);//AJAX数据过程 } //XML数据绑定 var xmldoc = false; function loadrss(urlName){     var myurl = urlArrary(urlName)     if(myurl){         listen("mainbg2");     //生成随机数，同时限制刷新次数         var Num=Math.floor(Math.random()*100);     //定义往址参数         url = myurl+"?id="+Num;     //定义为异步传输模式         xmldoc = false;     //Mozill,Safari等浏览器时需要创建的XMLHttp类         if(window.XMLHttpRequest){             xmldoc = new XMLHttpRequest();             if(xmldoc.overrideMimeType){                     xmldoc.overrideMimeType('text/xml');             }         }     //IE浏览器时创建的XMLHttp类         else if(window.ActiveXObject){             try{                 xmldoc = new ActiveXObject("Msxml3.XMLHTTP");             }             catch(e){                 try{                     xmldoc = new ActiveXObject("Msxml2.XMLHTTP");                 }                 catch(e){                     try{                         xmldoc = new ActiveXObject("Microsoft.XMLHTTP");                     }                     catch(e){}                 }             }         }     //不能创建XMLHTTP类时返回         if(! xmldoc){             return false;         }     //调用CheckState函数         xmldoc.onreadystatechange = CheckState;         xmldoc.open('GET',url,true);         xmldoc.send(null);     }else{         getId("listnum").innerHTML = "您输入的地址错误，请重试！"     } } //状态检测 function CheckState(){     var response = xmldoc.responseXML.documentElement;     btnSty("loadifo","block") //收到完整的服务器响应     if(xmldoc.readyState == 1){         getId("loadifo").innerHTML = "连接服务器"         }     else if(xmldoc.readyState == 2){         getId("loadifo").innerHTML = "开始加载数据"         }     else if(xmldoc.readyState == 3){         getId("loadifo").innerHTML = "正在加载数据"         settime(loadtime)         }     else if(xmldoc.readyState == 4){ //HTTP服务器响应值成功         if(xmldoc.status == 200){ //将服务器返回的字符串写到页面中ID为showdiv的区域      getId("loadifo").innerHTML = "加载完成"          settime(ifodis)          num(response)         }         else{             getId("loadifo").innerHTML = "错误"+xmldoc.status+"点这里刷新";         }     } } //检查数据合法性 function trydata(nodeName,nodeName2){     try{         var nodeV = nodeName.firstChild.nodeValue;     }catch(e){         try{             var nodeV = nodeName2.firstChild.nodeValue;         }catch(e){             var nodeV = "没有可用信息"         }     }     return nodeV; } //记录集总数 function num(b){     try{         var titleNode = b.selectNodes("//rss/channel/title");         var a = b.getElementsByTagName("item").length         titleV = trydata(titleNode(0));         getId("listnum").innerHTML = "共有"+a+"篇文章　来源于："+titleV;         setlist(a,b);     }catch(e){} } if (top.location != self.location)top.location=self.location;  //节目列表显示 //定义接收指向各个元素的节点信息的变量 var titleNode,linkNode,categoryNameNode,authorNode,pubDateNode,descriptionNode //定义接收元素值的变量 var titleV,linkV,categoryNameV,authorV,pubDateV,descriptionV //分类聚合 function setlist(a,b) {     var prograNode = b.getElementsByTagName("item");     var adminlinkNode = b.selectNodes("//rss/channel/link");     var titleNode = b.selectNodes("//rss/channel/item/title");     var linkNode = b.selectNodes("//rss/channel/item/link");     var categoryNode = b.selectNodes("//rss/channel/item/category");     var authorNode = b.selectNodes("//rss/channel/item/author");     var pubDateNode = b.selectNodes("//rss/channel/item/pubDate");     var descriptionNode = b.selectNodes("//rss/channel/item/description");     var category2sNode = b.selectNodes("//rss/channel/item/dc:subject");     var author2sNode = b.selectNodes("//rss/channel/item/dc:creator");     var pubDate2sNode = b.selectNodes("//rss/channel/item/dc:date");     var listchar="" //使用for循环，产生列表信息     for (i=0; i<a; i++)     {         titleV = trydata(titleNode(i))         linkV = trydata(linkNode(i))         categoryV = trydata(categoryNode(i),category2sNode(i))         authorV = trydata(authorNode(i),author2sNode(i))         pubDateV = trydata(pubDateNode(i),pubDate2sNode(i))         descriptionV = trydata(descriptionNode(i))         adminlinkV = trydata(adminlinkNode(0))         //将得到的元素值装载到产生表格的字符串中         listchar += "<h5><a href='"+linkV+"' target='_blank'>"+titleV+"</a></h5><span>发表时间："+pubDateV+"</span><div class='article'>"+descriptionV+"</div><div class='bottom'>文章分类："+categoryV+"　<a href='"+adminlinkV+"' target='_blank'>作者："+authorV+"</a></div>";     }     //将生成的表格输出到页面的DIV元素     getId("prolist").innerHTML = listchar;     listen("mainbg") } //浏览器回退部分 //重写IFREAM链接，浏览器回退重点 function saveState(message) {     var hisFrm = getId("historyFrame")     hisFrm.src = "blank.html?"+message } //检测IFREAM window.dhtmlHistory = {     iframeLoaded:function(newLocation){         var hash = new String(newLocation.search)         if (hash.length >= 2 && hash.charAt(0) == "?" && hash.substring(1) !=delChar()){             hash = hash.substring(1)             window.location.hash = hash;             var hisFrmdata = loadrss(hash)         }     } } //浏览器链接指向部分 //去除符号,请注明http://www.cnrui.cn/blog转载 function delChar(){     var a = window.location.hash     return     a.substring(1) } window.onload = function(){     if(window.location.hash.length >= 2){         ent(delChar())     } } // -->

            123下一页阅读全文