JS实现兼容各浏览器解析XML文档数据的方法

2024-05-06 16:21:08

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这篇文章主要介绍了JS实现兼容各浏览器解析XML文档数据的方法,涉及javascript对XML文件的解析技巧,并根据各浏览器进行了相关调整,具有良好的兼容性,需要的朋友可以参考下

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：

/*

* 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();

}

index.html代码：

<!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>

test.xml代码：

<?xml version="1.0" encoding="UTF-8"?>

<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>