Jquery ajax下拉框联动(用xml存放数据)

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demo.jsp


  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  
  2. <html>  
  3. <head>  
  4. <title>jquery xml解析</title>  
  5. <script type="text/javascript" src="js/jquery-1.3.2.js"></script>  
  6. <script type="text/javascript">  
  7.     $(document).ready(  
  8.             function() {  
  9.                 $.ajax( {  
  10.                     url : "xx.xml",  
  11.                     success : function(xml) {  
  12.                         $(xml).find("province").each(function() {  
  13.                             var t = $(this).attr("name");//this->     
  14.                                 $("#DropProvince").append(  
  15.                                         "<option>" + t + "</option>");  
  16.                             });  
  17.                     }  
  18.                 });  
  19.                 $("#DropProvince").change(  
  20.                         function() {  
  21.                             $("#sCity>option").remove();  
  22.                             var pname = $("#DropProvince").val();  
  23.                             $.ajax( {  
  24.                                 url : "xx.xml",  
  25.                                 success : function(xml) {  
  26.                                     $(xml).find(  
  27.                                             "province[name='" + pname  
  28.                                                     + "']>city").each(  
  29.                                             function() {  
  30.                                                 $("#sCity").append(  
  31.                                                         "<option>"  
  32.                                                                 + $(this)  
  33.                                                                         .text()  
  34.                                                                 + "</option>");  
  35.                                             });  
  36.                                 }  
  37.                             });  
  38.                         });  
  39.             });  
  40. </script>  
  41. </head>  
  42. <body>  
  43. <form id="form1">  
  44. <div>  
  45.     <select id="DropProvince" style="width: 60px;">  
  46.         <option>请选择</option>  
  47.     </select>  
  48.     <select id="sCity" style="width: 60px;">  
  49.     </select>  
  50. </div>  
  51. </form>  
  52. </body> 
  53. </html>

  54. xx.xml

  55. <?xml version="1.0" encoding="utf-8" ?>    
  56. <provinces>    
  57.     <province name="湖北">    
  58.         <city>武汉</city>    
  59.         <city>黄石</city>    
  60.         <city>宜昌</city>    
  61.         <city>天门</city>    
  62.     </province>    
  63.     <province name="湖南">    
  64.         <city>邵阳</city>    
  65.         <city>长沙</city>    
  66.         <city>岳阳</city>    
  67.     </province>    
  68.     <province name="广东">    
  69.         <city>广州</city>    
  70.         <city>深圳</city>    
  71.     </province>    
  72. </provinces> 
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