Detailed explanation of the steps to achieve three-level linkage with jquery+xml-JS Tutorial-php.cn

Detailed explanation of the steps to achieve three-level linkage with jquery+xml

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Release： 2018-04-23 13:42:32

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This time I will bring you jquery Detailed explanation of the steps to achieve three-level linkage in xml. What are the precautions. The following is a practical case. One Get up and take a look.

The page code is as follows:

<!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"> 
 <p> 
 <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> 
 </p> 
 </form> 
 </body> 
</html>

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The rendering is as follows:

I believe you have mastered the method after reading the case in this article, and there will be more exciting things Please pay attention to other related articles on php Chinese website!