用javascript读取xml文件读取节点数据_JavaScript

用javascript读取xml文件读取节点数据

2021-02-07 22:13JavaScript教程网 JavaScript

这篇文章主要介绍了用javascript读取xml文件读取节点数据的具体实现,需要的朋友可以参考下

下面代码是读取的节点数据，还有一种情况是读取节点属性数据。

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									<head>

									  <title></title>

									  <script type="text/javascript">

									    var objLength = null;

									    var xmlHttp;

									    var strurl = "";

									    function ajaxrequst() {

									      if (window.ActiveXObject) {

									        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

									      }

									      else {

									        xmlHttp = new XMLHttpRequest();

									      }

									      try {

									        strurl = "/data/rdzz.xml";

									        xmlHttp.onreadystatechange = LoadXmlFile;

									        xmlHttp.open("GET", strurl + "?time=" + (new Date()).getTime(), true);

									        xmlHttp.send(null);

									      }

									      catch (e) {

									      }

									    }

									    function LoadXmlFile() {

									      var content = "";

									      if (xmlHttp.readyState == 4) {

									        if (xmlHttp.status == 200) {

									          var xmlDOM = xmlHttp.responseXML;

									          var xmlRoot = xmlDOM.documentElement;

									          try {

									            var objLength = xmlRoot.getElementsByTagName("Item");

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

									              var elementtitle = objLength[i].getElementsByTagName('NewsTitle')[0];

									              var elementtime = objLength[i].getElementsByTagName('NewsTime')[0];

									              var elementurl= objLength[i].getElementsByTagName('NewsUrl')[0];

									// LastValue = objLength[i].getAttribute( "LastValue" )

									// Prediction = objLength[i].getAttribute( "Prediction" )

									// Actual = objLength[i].getAttribute( "Actual" )

									// importance = objLength[i].getAttribute( "importance" )

									// newstime = objLength[i].getAttribute( "NewsTime" )

									              var title = elementtitle.textContent || elementtitle.text;

									              var time = elementtime.textContent || elementtime.text;

									              var url = elementurl.textContent || elementurl.text;

									              content += "<li><dl><dd>" + time + "</dd><dd><a href='" + url + "' target='blank'>" + title + "</a></dd></dl></li>";

									            }

									            document.getElementById("newsInfo").innerHTML = content;

									          }

									          catch (e) {

									          }

									        }

									      }

									    }

									  </script>

									</head>

									  <body>

									    <input id="Button1" type="button" value="read" onclick="ajaxrequst()" />

									    <div id="newsInfo"></div>

									  </body>