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js parsing xml example sharing

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Release： 2018-03-22 16:13:51

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This article mainly shares with you js parsing xml examples, hoping to help everyone.

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xml code

<?xml version="1.0" encoding="gb2312"?>
<CityList>
	<City Name="北京">
		<Description>京有着三千余年的建城史和八百五十余年的建都史...</Description>
	</City>
	<City Name="上海">
		<Description>上海，中国大陆第一大城市；四个中央直辖市之一</Description>
	</City>
	<City Name="广州">	
		<Description>广州，简称穗，别称羊城、穗城、穗垣、仙城、花城；解放前旧称省城。</Description>
	</City>
	<City Name="成都">	
		<Description>位于四川省中部，是中西部地区重要的中心城市。西南地区科技中心、商贸中心、金融中心和交通通信枢纽。</Description>
	</City>
	<City Name="沈阳">	
		<Description>沈阳，辽宁省省会，中国15个副省级城市之一，中国七大区域中心城市之一</Description>
	</City>
</CityList>

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html code

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title>js解析xml字符串</title>
	</head>

	<body>
		<script type="text/javascript" src="jquery-1.8.2.js">
			
		</script>
		<script type="text/javascript">
			
			/**
			 * 解析xml的方法	
		     * @param {Object} xmlFile
			 */
			var loadXML = function (xmlFile) {
	            var xmlDoc;
	            if (window.ActiveXObject) {
	                xmlDoc = new ActiveXObject(&#39;Microsoft.XMLDOM&#39;);//IE浏览器
	                xmlDoc.async = false;
	                xmlDoc.load(xmlFile);
	            }
	            else if (isFirefox=navigator.userAgent.indexOf("Firefox")>0) { //火狐浏览器
	            //else if (document.implementation && document.implementation.createDocument) {//这里主要是对谷歌浏览器进行处理
	                xmlDoc = document.implementation.createDocument(&#39;&#39;, &#39;&#39;, null);
	                xmlDoc.load(xmlFile);
	            }
	            else{ //谷歌浏览器
	              var xmlhttp = new window.XMLHttpRequest();
	                xmlhttp.open("GET",xmlFile,false);
	                xmlhttp.send(null);
	                if(xmlhttp.readyState == 4){
	                xmlDoc = xmlhttp.responseXML.documentElement;
	                }
	            } 
	            return xmlDoc;
	        }

 

			$(function(){
				//绑定下拉列表事件
				$("#sel").change(function( ){ 
					$("#area").val($(this).val())
				})
				
				//调用读取xml文件的方法，返回xml对象
				var xml = loadXML("city.xml")   
				
				//提取City数据  
				var countrys = xml.getElementsByTagName(&#39;City&#39;);
				
	 			//循环为select下拉列表赋值
				for(var i = 0; i < countrys.length; i++) {  
					$("<option></option>").val(countrys[i].textContent).text(countrys[i].getAttribute("Name")).appendTo( $("#sel") );
					 
				}; 
			})
		
		</script>
	</body>

	<p></p>
	<body>
		<select id="sel"></select> 
		<textarea id="area" cols="30" rows="10"></textarea>
	</body>
</html>

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Running effect:

js reads the content in xml, loads the city into the drop-down list, and then changes the city, the city description is displayed in the text box;

As followsCreate parsing xml object
##

<html>
<body>
<script type="text/javascript">
try //Internet Explorer
  {
  xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
  }
catch(e)
  {
  try //Firefox, Mozilla, Opera, etc.
    {
    xmlDoc=document.implementation.createDocument("","",null);
    }
  catch(e) {alert(e.message)}
  }
try 
  {
  xmlDoc.async=false;
  xmlDoc.load("/example/xdom/books.xml");
  document.write("xmlDoc is loaded, ready for use");
  }
catch(e) {alert(e.message)}
</script>
</body>
</html>

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