JS implementation method that is compatible with various browsers in parsing XML document data

JS implementation method that is compatible with various browsers in parsing XML document data_javascript skills

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Release： 2016-05-16 15:57:09

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The example in this article describes the method of JS implementation that is compatible with various browsers in parsing XML document data. Share it with everyone for your reference. The specific analysis is as follows:

Many materials on the website that use JS to parse XML documents have more or less problems,

The following is the code I summarized, which is used to parse XML documents and is compatible with various browsers.

parseXMLDOM.js code:

/* 
 * 纯JS解析XML文档(兼容各个浏览器) 
 */ 
function parseXMLDOM(){ 
 var _browserType = ""; 
 var _xmlFile = ""; 
 var _XmlDom = null; 
 return { 
  "getBrowserType" : function(){ 
   return _browserType; 
  }, 
  "setBrowserType" : function(browserType){ 
   _browserType = browserType; 
  }, 
  "getXmlFile" : function(){ 
   return _xmlFile; 
  }, 
  "setXmlFile" : function(xmlFile){ 
   _xmlFile = xmlFile; 
  }, 
  "getXmlDom" : function(){ 
   return _XmlDom; 
  }, 
  "setXmlDom" : function(XmlDom){ 
   _XmlDom = XmlDom; 
  }, 
  "getBrowserType" : function(){ 
   var browserType = ""; 
   if(navigator.userAgent.indexOf("MSIE") != -1){ 
    browserType = "IE"; 
   }else if(navigator.userAgent.indexOf("Chrome") != -1){ 
    browserType = "Chrome"; 
   }else if(navigator.userAgent.indexOf("Firefox") != -1){ 
    browserType = "Firefox" 
   } 
   return browserType; 
  }, 
  "createXmlDom" : function(xmlDom){ 
   if(this.getBrowserType() == "IE"){//IE浏览器 
    xmlDom = new ActiveXObject('Microsoft.XMLDOM'); 
    xmlDom.async = false; 
    xmlDom.load(this.getXmlFile()); 
   }else{ 
    var xmlhttp = new XMLHttpRequest(); 
    xmlhttp.open("GET", this.getXmlFile(), false); 
    xmlhttp.send(null); 
    xmlDom = xmlhttp.responseXML; 
   } 
   return xmlDom; 
  }, 
  "parseXMLDOMInfo" : function(){ 
   var xmlDom = this.getXmlDom(); 
   if(this.getBrowserType() == "IE"){ 
    var bookObj = xmlDom.selectNodes("books/book"); 
    if(typeof(bookObj) != "undifined"){ 
     var strHtml=""; 
     for(var i = 0; i < bookObj.length; i++){ 
      strHtml += bookObj[i].selectSingleNode("isbn").text; 
      strHtml += " "; 
      strHtml += bookObj[i].selectSingleNode("price").text; 
      strHtml += " "; 
      strHtml += bookObj[i].selectSingleNode("title").text; 
      if(i != bookObj.length - 1){ 
       strHtml += "<br>"; 
      } 
     } 
    } 
   }else{ 
    var book = xmlDom.getElementsByTagName("book"); 
    var strHtml=""; 
    for(var i = 0;i < book.length;i++){ 
     strHtml += book[i].getElementsByTagName("isbn")[0].textContent;
     strHtml += " "; 
     strHtml += " "; 
     strHtml += book[i].getElementsByTagName("price")[0].textContent;
     strHtml += " "; 
     strHtml += book[i].getElementsByTagName("title")[0].textContent; 
     if(i != book.length - 1){ 
      strHtml += "<br>"; 
     } 
    } 
   } 
   document.getElementById("msg").innerHTML = strHtml; 
  } 
 } 
} 
window.onload = function(){ 
 var parseObj = new parseXMLDOM(); 
 //设置浏览器类型 
 parseObj.setBrowserType(parseObj.getBrowserType()); 
 //设置文件路径 
 parseObj.setXmlFile("test.xml"); 
 //创建XMLDOM 
 parseObj.setXmlDom(parseObj.createXmlDom(null)); 
 //解析XMLDOM 
 parseObj.parseXMLDOMInfo(); 
}

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index.html code:

<!DOCTYPE html> 
<html> 
 <head> 
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
  <title>JS解析XML文档中的数据(兼容所有浏览器)</title> 
  <script language="javascript" type="text/javascript" src="js/parseXMLDOM.js"></script> 
 </head> 
 <body> 
  <span id="msg"></span> 
 </body> 
</html>

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test.xml code:

<&#63;xml version="1.0" encoding="UTF-8"&#63;> 
<books> 
 <book> 
  <isbn>2207-1258-123</isbn> 
  <price>25</price> 
  <title>Javascript</title> 
 </book> 
 <book> 
  <isbn>2207-1258-456</isbn> 
  <price>50</price> 
  <title>Ajax</title> 
 </book> 
 <book> 
  <isbn>2207-1258-789</isbn> 
  <price>75</price> 
  <title>C#</title> 
 </book> 
</books>

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I hope this article will be helpful to everyone’s JavaScript programming design.