JS与jQ读取xml文件的方法

废话不多说了，直接给大家贴代码了，具体代码如下所示：

jquery读取xml文件

<!DOCTYPE html PUBLIC "-//WC//DTD XHTML . Transitional//EN" "http://www.w.org/TR/xhtml/DTD/xhtml-transitional.dtd">
<html xmlns="http://www.w.org//xhtml">
<head>
  <title>jQuery 读取XML文件-jQuery学习</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-" />
  <style type="text/css">
    h{color:Green;text-align:center;}
    body{ background-color:#EEEEEE ; font-family:微软雅黑; }
    #showresult{width:px;overflow:hidden;}
  </style>
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/../jquery.min.js"></script>
  <script type="text/javascript">
    $(document).ready(function () {
      $("#read").click(function () {
        $.ajax({
          //请求方式为get
          type: "GET",
          //xml文件位置
          url: "sitemap.xml",
          //返回数据格式为xml
          dataType: "xml",
          //请求成功完成后要执行的方法
          success: function (xml) {
            $(xml).find("url").each(function (i) {
              //i从开始，累加，如果要显示所有数据，将判断去除即可
              if (i < ) {
                //链接地址
                var location = $(this).find("loc").text();
                //显示文字
                var text = $(this).find("loc").text();
                //动态加载方法:链接地址
                $("<a>").attr("href", location)
                //显示文字
              .text(text)
                //设置样式
              .css({ "width": "px", "float": "left", "margin-bottom": "px" })
                //加载到div
              .appendTo("#showresult");
              }
            })
          }
        });
        return false;
      });
    });
  </script>
</head>
<body>
  <div id="showresult">
    <h>jQuery读取XML文件</h>
    <a id="read" href="#" style="width:px;">点击读取XML</a>
  </div>
</body>
</html> 

 js读取xml文件

<div id="blog_content" class="blog_content"><p><span style="color:#ff0000;">city.xml 文件</span></p><p><?xml version="1.0" encoding="UTF-8"?>
<root name="中国">
 <province name="请选择省" postcode="100000" >
  <city name="请选择市" postcode="100100" >
  <area name="请选择区" postcode="100101" />
 </city>
 </province>
 <province name="北京市" postcode="110000" >
  <city name="市辖区" postcode="110100" >
    <area name="东城区" postcode="110101" />
    <area name="西城区" postcode="110102" />
    <area name="崇文区" postcode="110103" />
    <area name="宣武区" postcode="110104" />
    <area name="朝阳区" postcode="110105" />
    <area name="丰台区" postcode="110106" />
    <area name="石景山区" postcode="110107" />
    <area name="海淀区" postcode="110108" />
    <area name="门头沟区" postcode="110109" />
    <area name="房山区" postcode="110111" />
    <area name="通州区" postcode="110112" />
    <area name="顺义区" postcode="110113" />
    <area name="昌平区" postcode="110114" />
    <area name="大兴区" postcode="110115" />
    <area name="怀柔区" postcode="110116" />
    <area name="平谷区" postcode="110117" />
  </city>
  <city name="县" postcode="110200" >
    <area name="密云县" postcode="110228" />
    <area name="延庆县" postcode="110229" />
  </city>
 </province>
 <province name="天津市" postcode="120000" >
  <city name="市辖区" postcode="120100" >
    <area name="和平区" postcode="120101" />
    <area name="河东区" postcode="120102" />
    <area name="河西区" postcode="120103" />
    <area name="南开区" postcode="120104" />
    <area name="河北区" postcode="120105" />
    <area name="红桥区" postcode="120106" />
    <area name="塘沽区" postcode="120107" />
    <area name="汉沽区" postcode="120108" />
    <area name="大港区" postcode="120109" />
    <area name="东丽区" postcode="120110" />
    <area name="西青区" postcode="120111" />
    <area name="津南区" postcode="120112" />
    <area name="北辰区" postcode="120113" />
    <area name="武清区" postcode="120114" />
    <area name="宝坻区" postcode="120115" />
  </city>
  <city name="县" postcode="120200" >
    <area name="宁河县" postcode="120221" />
    <area name="静海县" postcode="120223" />
    <area name="蓟县" postcode="120225" />
  </city>
 </province></p><p> <province name="河北省" postcode="130000" >
  <city name="石家庄市" postcode="130100" >
    <area name="长安区" postcode="130102" />
    <area name="桥东区" postcode="130103" />
    <area name="桥西区" postcode="130104" />
    <area name="新华区" postcode="130105" />
    <area name="井陉矿区" postcode="130107" />
    <area name="裕华区" postcode="130108" />
    <area name="井陉县" postcode="130121" />
    <area name="正定县" postcode="130123" />
    <area name="栾城县" postcode="130124" />
    <area name="行唐县" postcode="130125" />
    <area name="灵寿县" postcode="130126" />
    <area name="高邑县" postcode="130127" />
    <area name="深泽县" postcode="130128" />
    <area name="赞皇县" postcode="130129" />
    <area name="无极县" postcode="130130" />
    <area name="平山县" postcode="130131" />
    <area name="元氏县" postcode="130132" />
    <area name="赵县" postcode="130133" />
    <area name="辛集市" postcode="130181" />
    <area name="藁城市" postcode="130182" />
    <area name="晋州市" postcode="130183" />
    <area name="新乐市" postcode="130184" />
    <area name="鹿泉市" postcode="130185" />
  </city>
  <city name="唐山市" postcode="130200" >
    <area name="路南区" postcode="130202" />
    <area name="路北区" postcode="130203" />
    <area name="古冶区" postcode="130204" />
    <area name="开平区" postcode="130205" />
    <area name="丰南区" postcode="130207" />
    <area name="丰润区" postcode="130208" />
    <area name="滦县" postcode="130223" />
    <area name="滦南县" postcode="130224" />
    <area name="乐亭县" postcode="130225" />
    <area name="迁西县" postcode="130227" />
    <area name="玉田县" postcode="130229" />
    <area name="唐海县" postcode="130230" />
    <area name="遵化市" postcode="130281" />
    <area name="迁安市" postcode="130283" />
  </city>
  <city name="秦皇岛市" postcode="130300" >
    <area name="海港区" postcode="130302" />
    <area name="山海关区" postcode="130303" />
    <area name="北戴河区" postcode="130304" />
    <area name="青龙满族自治县" postcode="130321" />
    <area name="昌黎县" postcode="130322" />
    <area name="抚宁县" postcode="130323" />
    <area name="卢龙县" postcode="130324" />
  </city>
  <city name="邯郸市" postcode="130400" >
    <area name="邯山区" postcode="130402" />
    <area name="丛台区" postcode="130403" />
    <area name="复兴区" postcode="130404" />
    <area name="峰峰矿区" postcode="130406" />
    <area name="邯郸县" postcode="130421" />
    <area name="临漳县" postcode="130423" />
    <area name="成安县" postcode="130424" />
    <area name="大名县" postcode="130425" />
    <area name="涉县" postcode="130426" />
    <area name="磁县" postcode="130427" />
    <area name="肥乡县" postcode="130428" />
    <area name="永年县" postcode="130429" />
    <area name="邱县" postcode="130430" />
    <area name="鸡泽县" postcode="130431" />
    <area name="广平县" postcode="130432" />
    <area name="馆陶县" postcode="130433" />
    <area name="魏县" postcode="130434" />
    <area name="曲周县" postcode="130435" />
    <area name="武安市" postcode="130481" />
  </city>
  <city name="邢台市" postcode="130500" >
    <area name="桥东区" postcode="130502" />
    <area name="桥西区" postcode="130503" />
    <area name="邢台县" postcode="130521" />
    <area name="临城县" postcode="130522" />
    <area name="内丘县" postcode="130523" />
    <area name="柏乡县" postcode="130524" />
    <area name="隆尧县" postcode="130525" />
    <area name="任县" postcode="130526" />
    <area name="南和县" postcode="130527" />
    <area name="宁晋县" postcode="130528" />
    <area name="巨鹿县" postcode="130529" />
    <area name="新河县" postcode="130530" />
    <area name="广宗县" postcode="130531" />
    <area name="平乡县" postcode="130532" />
    <area name="威县" postcode="130533" />
    <area name="清河县" postcode="130534" />
    <area name="临西县" postcode="130535" />
    <area name="南宫市" postcode="130581" />
    <area name="沙河市" postcode="130582" />
  </city>
  <city name="保定市" postcode="130600" >
    <area name="新市区" postcode="130602" />
    <area name="北市区" postcode="130603" />
    <area name="南市区" postcode="130604" />
    <area name="满城县" postcode="130621" />
    <area name="清苑县" postcode="130622" />
    <area name="涞水县" postcode="130623" />
    <area name="阜平县" postcode="130624" />
    <area name="徐水县" postcode="130625" />
    <area name="定兴县" postcode="130626" />
    <area name="唐县" postcode="130627" />
    <area name="高阳县" postcode="130628" />
    <area name="容城县" postcode="130629" />
    <area name="涞源县" postcode="130630" />
    <area name="望都县" postcode="130631" />
    <area name="安新县" postcode="130632" />
    <area name="易县" postcode="130633" />
    <area name="曲阳县" postcode="130634" />
    <area name="蠡县" postcode="130635" />
    <area name="顺平县" postcode="130636" />
    <area name="博野县" postcode="130637" />
    <area name="雄县" postcode="130638" />
    <area name="涿州市" postcode="130681" />
    <area name="定州市" postcode="130682" />
    <area name="安国市" postcode="130683" />
    <area name="高碑店市" postcode="130684" />
  </city>
  <city name="张家口市" postcode="130700" >
    <area name="桥东区" postcode="130702" />
    <area name="桥西区" postcode="130703" />
    <area name="宣化区" postcode="130705" />
    <area name="下花园区" postcode="130706" />
    <area name="宣化县" postcode="130721" />
    <area name="张北县" postcode="130722" />
    <area name="康保县" postcode="130723" />
    <area name="沽源县" postcode="130724" />
    <area name="尚义县" postcode="130725" />
    <area name="蔚县" postcode="130726" />
    <area name="阳原县" postcode="130727" />
    <area name="怀安县" postcode="130728" />
    <area name="万全县" postcode="130729" />
    <area name="怀来县" postcode="130730" />
    <area name="涿鹿县" postcode="130731" />
    <area name="赤城县" postcode="130732" />
    <area name="崇礼县" postcode="130733" />
  </city>
  <city name="承德市" postcode="130800" >
    <area name="双桥区" postcode="130802" />
    <area name="双滦区" postcode="130803" />
    <area name="鹰手营子矿区" postcode="130804" />
    <area name="承德县" postcode="130821" />
    <area name="兴隆县" postcode="130822" />
    <area name="平泉县" postcode="130823" />
    <area name="滦平县" postcode="130824" />
    <area name="隆化县" postcode="130825" />
    <area name="丰宁满族自治县" postcode="130826" />
    <area name="宽城满族自治县" postcode="130827" />
    <area name="围场满族蒙古族自治县" postcode="130828" />
  </city>
  <city name="沧州市" postcode="130900" >
    <area name="新华区" postcode="130902" />
    <area name="运河区" postcode="130903" />
    <area name="沧县" postcode="130921" />
    <area name="青县" postcode="130922" />
    <area name="东光县" postcode="130923" />
    <area name="海兴县" postcode="130924" />
    <area name="盐山县" postcode="130925" />
    <area name="肃宁县" postcode="130926" />
    <area name="南皮县" postcode="130927" />
    <area name="吴桥县" postcode="130928" />
    <area name="献县" postcode="130929" />
    <area name="孟村回族自治县" postcode="130930" />
    <area name="泊头市" postcode="130981" />
    <area name="任丘市" postcode="130982" />
    <area name="黄骅市" postcode="130983" />
    <area name="河间市" postcode="130984" />
  </city>
  <city name="廊坊市" postcode="131000" >
    <area name="安次区" postcode="131002" />
    <area name="广阳区" postcode="131003" />
    <area name="固安县" postcode="131022" />
    <area name="永清县" postcode="131023" />
    <area name="香河县" postcode="131024" />
    <area name="大城县" postcode="131025" />
    <area name="文安县" postcode="131026" />
    <area name="大厂回族自治县" postcode="131028" />
    <area name="霸州市" postcode="131081" />
    <area name="三河市" postcode="131082" />
  </city>
  <city name="衡水市" postcode="131100" >
    <area name="桃城区" postcode="131102" />
    <area name="枣强县" postcode="131121" />
    <area name="武邑县" postcode="131122" />
    <area name="武强县" postcode="131123" />
    <area name="饶阳县" postcode="131124" />
    <area name="安平县" postcode="131125" />
    <area name="故城县" postcode="131126" />
    <area name="景县" postcode="131127" />
    <area name="阜城县" postcode="131128" />
    <area name="冀州市" postcode="131181" />
    <area name="深州市" postcode="131182" />
  </city>
 </province></p><p></root></p><p> </p><p><span style="color:#ff0000;">由于文件太长这里就写这几个省吧</span></p><p><span style="color:#ff0000;"> </span></p><p><span style="color:#ff0000;">city.html</span></p><p><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 <head>
  <title>city.html</title>
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="this is my page">
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
 </head>
 <body>
  <div>
  <span><select id="sheng" style="width: 100px"><option>
   请选择省
  </option></select></span>
  <span><select id="shi" style="width: 100px">
  <option>
 请选择相应市
 </option>
  </select></span>
  <span><select id="xian" style="width: 100px">
  <option>
 请选择相应区
 </option>
  </select></span>
  </div>
 </body>
</html>
<script type="text/javascript">
<!--
function getXmlDoc() {
 var xmldoc;
 try{
  //IE浏览器
 xmlDoc = new ActiveXObject("microsoft.XMLDOM");
 }catch(e){
 try{
  //firefox 其他浏览器
  xmlDoc = document.implementation.createDocument("","",null);
 }catch(er){
 alert("您的浏览器太低了");
 }
 }
 //关闭异步加载,确保在文档完全加载之前解析器不会继续脚本的执行
 xmlDoc.async = false;
 //转载xml文件
 xmlDoc.load("city.xml");
 return xmlDoc;
}</p><p>window.onload = function() {
 //通过方法获取对象
 var xmlDoc = getXmlDoc();
 //获取xml文件的根节点
 var root = xmlDoc.documentElement;
 //获得所有的省节点
 var provinces = root.childNodes;
 //获取页面中要显示的省的控件dom对象
 var sheng = document.getElementById("sheng");
 var shi = document.getElementById("shi");
 var xian = document.getElementById("xian");
 //遍历所有的省
 for(var i=0;i<provinces.length;i++) {
 //查看该节点是否是元素节点 也是为了实现不同浏览器之间的兼容性问题
 if(provinces[i].nodeType == 1) {
  //创建option节点对象
  var shengopt = document.createElement("option");
  //为省节点添加文本节点
  shengopt.appendChild(document.createTextNode(provinces[i].getAttribute("name")));
  //为省节点添加属性
  shengopt.setAttribute("value",provinces[i].getAttribute("postcode"));
  //添加省道页面dom对象中
  sheng.appendChild(shengopt);
 }
 }
 //当省节点发生改变时 触发事件
 sheng.onchange = function() {
 //获取省节点所有的option对象的集合
 var shengs = sheng.options;
 //获取选中option对象的selectedIndex(下标值)
 var num = shengs.selectedIndex;
 //清空市 区
 shi.length = 1;
 xian.length = 1;
 var ppostocode = shengs[num].getAttribute("value");
 //遍历所有的省
 for(var i=0;i<provinces.length;i++) {
  //查看该节点是否是元素节点 也是为了实现不同浏览器之间的兼容性问题
  if(provinces[i].nodeType == 1) {
  var postcode = provinces[i].getAttribute("postcode");
  if(postcode == ppostocode) {
   var cities = provinces[i].childNodes;
   shi.length = 1;
   for(var i=0;i<cities.length;i++) {
   if(cities[i].nodeType == 1) {
    var shiopt = document.createElement("option");
    shiopt.appendChild(document.createTextNode(cities[i].getAttribute("name")));
    shiopt.setAttribute("value",cities[i].getAttribute("postcode"));;
    shi.appendChild(shiopt);
   }
   }
   break;
  }
  }
 }
 }
 shi.onchange = function() {
 var shis = shi.options;
 var num = shis.selectedIndex;
 var spostcode = shis[num].getAttribute("value");
 for(var i=0;i<provinces.length;i++) {
  if(provinces[i].nodeType == 1) {
  var cities = provinces[i].childNodes;
  for(var j=0;j<cities.length;j++) {
   if(cities[j].nodeType == 1) {
   var postcode = cities[j].getAttribute("postcode");
   if(postcode == spostcode) {
    xian.length = 1;
    var areas = cities[j].childNodes;
    for(var k=0;k<areas.length;k++) {
    if(areas[k].nodeType == 1) {
     var xianopt = document.createElement("option");
     xianopt.appendChild(document.createTextNode(areas[k].getAttribute("name")));
     xianopt.setAttribute("value",areas[k].getAttribute("postcode"));
     xian.appendChild(xianopt);
    }
    }
    break;
   }
   }
  }
  }
 }
 }
}</p><p>
//-->
</script>
<!--
DOM 解析中的浏览器差异所有现代浏览器都支持 W3C DOM 规范。不过，浏览器之间是有差异的。
重要的区别有两点：</p><p>1、加载 XML 的方式
 //IE浏览器
   var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
 //firefox 其他浏览器
  var xmlDoc = document.implementation.createDocument("","",null);
2、处理空白和换行的方式
 Firefox，以及其他一些浏览器，会把空的空白或换行作为文本节点来处理，而 Internet Explorer 不会这样。
 思考: 那么怎么解决这种差异呢，下面是一种方法：
  for(var i=0;i<provinces.length;i++){ //在输出所有的子节点的时候
    if(provinces[i].nodeType==1){//在这里判断该节点是否是元素节点
     }
  }
 要注意的是: xmlDoc.async = false; 写成这样 IE ， fireFox 都可以
   xmlDoc.async = "false"; IE 可以 fireFox 会报错
 --></p></div> 

以上代码是讲解js、jq读取xml文件的方法，希望大家喜欢。