JS解析XML资料和XML字符串 _JavaScript

JS解析XML文件和XML字符串

JS 解析 XML 文件

< scrip t?type = ' text/javascript ' >
????loadXML? = ? function (xmlFile){
???????? var ?xmlDoc = null ;
???????? // 判断浏览器的类型
???????? // 支持IE浏览器
???????? if ( ! win dow.DOMParser? && ?window.ActiveXObject){
???????????? var ?xmlDomVersions? = ?[ ' MSXML.2.DOMDocument.6.0 ' , ' MSXML.2.DOMDocument.3.0 ' , ' Microsoft.XMLDOM ' ];
???????????? for ( var ?i = 0 ;i < xmlDomVersions.length;i ++ ){
???????????????? try {
????????????????????xmlDoc? = ? new ?ActiveXObject(xmlDomVersions[i]);
???????????????????? break ;
????????????????} catch (e){
????????????????}
????????????}
????????}
???????? // 支持Mozilla浏览器
???????? else ? if (document.implementation? && ?document.implementation.createDocument){
???????????? try {
???????????????? /* ?document.implementation.createDocument('','',null);?方法的三个参数说明
?????????????????*?第一个参数是包含文档所使用的命名空间 URI的字符串；?
?????????????????*?第二个参数是包含文档根元素名称的字符串；?
?????????????????*?第三个参数是要创建的文档类型（也称为doctype）
????????????????? */
????????????????xmlDoc? = ?document.implementation.createDocument( '' , '' , null );
????????????} catch (e){
????????????}
????????}
???????? else {
???????????? return ? null ;
????????}

???????? if (xmlDoc != null ){
????????????xmlDoc.async? = ? false ;
????????????xmlDoc.load(xmlFile);
????????}
???????? return ?xmlDoc;
????}
< / script>

JS解析XML字符串

< script?type = ' text/javascript ' >
????loadXML? = ? function (xmlString){
???????? var ?xmlDoc = null ;
???????? // 判断浏览器的类型
???????? // 支持IE浏览器?
???????? if ( ! window.DOMParser? && ?window.ActiveXObject){??? // window.DOMParser?判断是否是非ie浏览器
???????????? var ?xmlDomVersions? = ?[ ' MSXML.2.DOMDocument.6.0 ' , ' MSXML.2.DOMDocument.3.0 ' , ' Microsoft.XMLDOM ' ];
???????????? for ( var ?i = 0 ;i < xmlDomVersions.length;i ++ ){
???????????????? try {
????????????????????xmlDoc? = ? new ?ActiveXObject(xmlDomVersions[i]);
????????????????????xmlDoc.async? = ? false ;
????????????????????xmlDoc.loadXML(xmlString);? // loadXML方法载入xml字符串
???????????????????? break ;
????????????????} catch (e){
????????????????}
????????????}
????????}
???????? // 支持Mozilla浏览器
???????? else ? if (window.DOMParser? && ?document.implementation? && ?document.implementation.createDocument){
???????????? try {
???????????????? /* ?DOMParser?对象解析?XML?文本并返回一个?XML?Document?对象。
?????????????????*?要使用?DOMParser，使用不带参数的构造函数来实例化它，然后调用其?parseFromString()?方法
?????????????????*?parseFromString(text,?contentType)?参数text:要解析的?XML?标记?参数contentType文本的内容类型
?????????????????*?可能是?"text/xml"?、"application/xml"?或?"application/xhtml +xml"?中的一个。注意，不支持?"text/html "。
????????????????? */
????????????????domParser? = ? new ??DOMParser();
????????????????xmlDoc? = ?domParser.parseFromString(xmlString,? ' text/xml ' );
????????????} catch (e){
????????????}
????????}
???????? else {
???????????? return ? null ;
????????}

???????? return ?xmlDoc;
????}
< / script>

测试XML

<? xml?version="1.0"?encoding="utf-8"? ?>
< DongFang >
?? < Company >
???? < cNname > 1 </ cNname >
???? < cIP > 1 </ cIP >
?? </ Company >
?? < Company >
???? < cNname > 2 </ cNname >
???? < cIP > 2 </ cIP >
?? </ Company > ????
?? < Company >
???? < cNname > 3 </ cNname >
???? < cIP > 3 </ cIP >
?? </ Company >
?? < Company >
???? < cNname > 4 </ cNname >
???? < cIP > 4 </ cIP >
?? </ Company >
?? < Company >
???? < cNname > 5 </ cNname >
???? < cIP > 5 </ cIP >
?? </ Company >
?? < Company >
???? < cNname > 6 </ cNname >
???? < cIP > 6 </ cIP >
?? </ Company >
</ DongFang >

使用方法

?var xmldoc=loadXML(text.xml)

?var elements = xmlDoc.getElementsByTagName("Company ");

?for (var i = 0; i < elements.length; i++) {
??????????????? var id = elements[i].getElementsByTagName("cNname ")[0].firstChild.nodeValue;
??????????????? var name = elements[i].getElementsByTagName("cIP ")[0].firstChild.nodeValue;???????????????

}
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