JS实现兼容各浏览器解析XML文档数据的方法

本文实例讲述了JS实现兼容各浏览器解析XML文档数据的方法。分享给大家供大家参考。具体分析如下：

网站上很多用JS解析XML文档的资料或多或少都有点问题，

以下是自己总结的代码，用来解析XML文档，兼容各个浏览器。

parseXMLDOM.js代码：

 
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 += "
"; 
      } 
     } 
    } 
   }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 += "
"; 
     } 
    } 
   } 
   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(); 
}

index.html代码：

test.xml代码：

 
 
  
  2207-1258-123 
  25 
   
  
  
  2207-1258-456 
  50 
   
  
  
  2207-1258-789 
  75 
   
  

希望本文所述对大家的javascript程序设计有所帮助。