jQuery traversing XML nodes and attributes implementation steps

This time I will bring you the steps to implement jQuery for traversing XML nodes and attributes. What are the precautions for jQuery for traversing XML nodes and attributes? The following is a practical case, let’s take a look.

After some research, it seems that jquery does not have attributes. We still need to rely on the original JS

The following is the JS code

<script></script>
<p></p>
<script>
//用于缩进, 根据节点级别
var M_DOT = 1;
//递归函数, 用于遍历XML, 同时打印出来
function fn(obj){
  //定义一个变量, 用于缩进
  var dotString = "";
  //根据缩进量, 得到缩进的长度
  for(j = 1; j <= M_DOT; j++){
    dotString += "    ";
  }
  //jquery不支持attributes属性集, 转为原生js, 并赋给myObj变量
  var myObj = obj[0].attributes;
  //打印缩进
  $("#c").append(dotString)
  //打印属性集nodeName, nodeValue为原生JS, 分别表示为属性的名称, 和属性值
  $(myObj).each(function(i){
    $("#c").append( ($(this)[0].nodeName) + "=<u>" + ($(this)[0].nodeValue) + " " );
  })
  //打印节点的文本
  //$("#c").append( "<b>" + obj.text() + "<br/>");
  //打印换行
  $("#c").append( "<br/>");
  //判断DOM有无子DOM
  if( obj.length > 0 ){
    //如果有, 遍历之
    obj.children().each(function(i){
      //缩进量加一
      M_DOT++;
      //递归遍历子DOM
      fn($(this));
      //缩进量加一
      M_DOT--;
    })
  }else{
    //如果没有子DOM, 返回false
    return false;
  }
}
//程序入口
$(document).ready(function() {
  //ajax获取xml数据, 详细用法见jquery手册
  $.get(&#39;config.xml&#39;, function(d){
    //len = $(d).find("*").length;
    //找到xml顶级结点. (&#39;*:first&#39;):就是查找第一个DOM. 详细说明见jquery手册
    //find, children(), each, 以及后面用到的 append 等请查阅jquery手册
    $(d).find(&#39;*:first&#39;).children().each(function(i){
      //找到顶级结点的子结点, 并把子结点对象传给fn函数
      fn($(this));
    });
  });
});
</script>

Attached is an XML file

Please name config.xml and put it in the same directory as the above js, and put them both in the site

<?xml  version="1.0" encoding="utf-8" ?>
<roster>
  <student>
    <name>李华</name>
    <sex>男</sex>
    <birthday>1978.9.12</birthday>
    <score>92</score>
    <skill>Java</skill>
    <skill>Oracle</skill>
    <skill>C Sharp</skill>
    <skill>SQL Server</skill>
  </student>
  <student>
    <name>李寻欢</name>
    <sex>男</sex>
    <birthday>1981.4.19</birthday>
    <score>58</score>
    <skill>UML</skill>
    <skill>C Sharp</skill>
    <skill>XML</skill>
    <skill>SQL Server</skill>
  </student>
</roster>

I believe you have mastered the method after reading the case in this article. Please pay attention for more exciting things. Other related articles on php Chinese website!

Recommended reading:

Detailed explanation of the steps to implement full-screen scrolling plug-in in ES6

##vue vue-router vuex operation permissions

The above is the detailed content of jQuery traversing XML nodes and attributes implementation steps. For more information, please follow other related articles on the PHP Chinese website!