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首页 / 脚本样式 / JavaScript / jquery读取xml文件实现省市县三级联动的方法

本文实例讲述了jquery读取xml文件实现省市县三级联动的方法。分享给大家供大家参考。具体如下:
页面代码如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><base href="<%=basePath%>"><title>My JSP "city.jsp" starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript" src="js/jquery-1.7.2.min.js"></script><script type="text/javascript">$(document).ready(function(){ //省 $.ajax({url:"xml/City.xml",success:function(xml){ $(xml).find("province").each(function(){ var t = $(this).attr("name");//this-> $("#DropProvince").append("<option>"+t+"</option>"); });} }); //市 $("#DropProvince").change(function(){$("#sCity>option").remove();$("#sArea>option").remove();var pname = $("#DropProvince").val();$.ajax({url:"xml/City.xml",success:function(xml){ ///查找<province>下的所有第一级子元素(即城市) $(xml).find("province[name=""+pname+""]>city").each(function(){ var city = $(this).attr("name");//this-> $("#sCity").append("<option>"+city+"</option>"); }); ///查找<city>下的所有第一级子元素(即区域) var cname = $("#sCity").val(); $(xml).find("city[name=""+cname+""]>area").each(function(){ var area = $(this).attr("name");//this-> $("#sArea").append("<option>"+area+"</option>"); });}}); }); //区 $("#sCity").change(function(){$("#sArea>option").remove();var cname = $("#sCity").val();$.ajax({url:"xml/City.xml",success:function(xml){ ///查找<city>下的所有第一级子元素(即区域) $(xml).find("city[name=""+cname+""]>area").each(function(){ var area = $(this).attr("name");//this-> $("#sArea").append("<option>"+area+"</option>"); });}}); });});</script></head><body><form id="form1"><div><select id="DropProvince" style="width:100px;"> <option>请选择</option></select><select id="sCity" style="width:100px;"> <option>请选择相应市</option></select> <select id="sArea" style="width:100px;"> <option>请选择相应区</option></select></div></form></body> </html>
效果图如下:

希望本文所述对大家的jQuery程序设计有所帮助。