举例说明xml查询

xml文件（greenXml .xml）：

<?xml version="1.0" encoding="gb2312" ?>

- <allGreen>

- <green>

<ID>1</ID>

<X>121.55443</X>

<Y>31.18068</Y>

<NAME>紫叶花园东园</NAME>

<HSNUM>108</HSNUM>

<STREET>莲安西路</STREET>

<JIEZHEN>北蔡镇</JIEZHEN>

</green>

- <green>

<ID>2</ID>

<X>121.5067</X>

<Y>31.18833</Y>

<NAME>临沂公园</NAME>

<HSNUM>3683</HSNUM>

<STREET>东方路</STREET>

<JIEZHEN>周家渡街道</JIEZHEN>

</green>

- <green>

<ID>3</ID>

<X>121.631</X>

<Y>31.18136</Y>

<NAME>孙桥文化公园</NAME>

<HSNUM />

<STREET>孙桥路</STREET>

<JIEZHEN>张江镇</JIEZHEN>

</green>

- <green>

<ID>4</ID>

<X>121.64575</X>

<Y>31.18957</Y>

<NAME>华夏公园</NAME>

<HSNUM />

<STREET>华夏中路</STREET>

<JIEZHEN>张江镇</JIEZHEN>

</green>

- <green>

<ID>5</ID>

<X>121.58912</X>

<Y>31.33665</Y>

<NAME>永久城市花园</NAME>

<PHONE>+(86)-(21)-58622272</PHONE>

<HSNUM>259</HSNUM>

<STREET>季景路</STREET>

<JIEZHEN>高桥镇</JIEZHEN>

</green>

- <green>

<ID>6</ID>

<X>121.57306</X>

<Y>31.3467</Y>

<NAME>高桥公园</NAME>

<HSNUM />

<STREET>张杨北路</STREET>

<JIEZHEN>高桥镇</JIEZHEN>

</green>

- <green>

<ID>7</ID>

<X>121.47934</X>

<Y>31.17059</Y>

<NAME>济阳公园</NAME>

<HSNUM>600</HSNUM>

<STREET>耀华路</STREET>

<JIEZHEN>上钢新村街道</JIEZHEN>

</green>

- <green>

<ID>8</ID>

<X>121.48849</X>

<Y>31.17349</Y>

<NAME>长青公园</NAME>

<HSNUM>11</HSNUM>

<STREET>长清路</STREET>

<JIEZHEN>上钢新村街道</JIEZHEN>

</green>

- </allGreen> 



js中的代码：

var greenXml = new ActiveXObject("Msxml2.DOMDocument");
greenXml.load("data/greenXml .xml");

greenXml.setProperty("SelectionLanguage","XPath");//这句是进行XPath查询的关键，一定要

查找某一对象：

var myNodes = greenXml.documentElement.selectNodes("//allGreen/green[NAME='长青公园']");

模糊查询：

var myNodes = greenXml.documentElement.selectNodes("//allGreen/green[contains(NAME,'公园')]");
多条件查询：

var myNodes = greenXml.documentElement.selectNodes("//allGreen/green[contains(NAME,'公园')][JIEZHEN='上钢新村街道']"); //各个条件用[ ]表示；

查询后查看结果：

for(var i=0;i<myNodes.length;i++){

var address=myNodes[i].selectSingleNode("STREET").text;

var num=myNodes[i].selectSingleNode("HSNUM").text;

}