用 PHP5 轻松解析 XML

  用 sax 方式的时候,要自己构建3个函数,而且要直接用这三的函数来返回数据,要求较强的逻辑。在处理不同结构的 xml 的时候,还要重新进行构造这三个函数,麻烦!

  用 dom 方式,倒是好些,但是他把每个节点都看作是一个 node,,操作起来要写好多的代码,麻烦!

  网上有好多的开源的 xml 解析的类库,以前看过几个,但是心里总是觉得不踏实,感觉总是跟在别人的屁股后面。

  这几天在搞 Java,挺累的,所以决定换换脑袋,写点 PHP 代码,为了防止以后 XML 解析过程再令我犯难,就花了一天的时间写了下面一个 XML 解析的类,于是就有了下面的东西。

  实现方式是通过包装“sax方式的解析结果”来实现的。总的来说,对于我个人来说挺实用的,性能也还可以,基本上可以完成大多数的处理要求。

  功能:

  1\ 对基本的 XML 文件的节点进行 查询 / 添加 / 修改 / 删除 工作。

  2\ 导出 XML 文件的所有数据到一个数组里面。

  3\ 整个设计采用了 OO 方式,在操作结果集的时候,使用方法类似于 dom

  缺点:

  1\ 每个节点最好都带有一个id(看后面的例子),每个“节点名字”=“节点的标签_节点的id”,如果这个 id 值没有设置,程序将自动给他产生一个 id,这个 id 就是这个节点在他的上级节点中的位置编号,从 0 开始。

  2\ 查询某个节点的时候可以通过用“|”符号连接“节点名字”来进行。这些“节点名字”都是按顺序写好的上级节点的名字。

  使用说明:

  运行下面的例子,在执行结果页面上可以看到函数的使用说明

  代码是通过 PHP5 来实现的,在 PHP4 中无法正常运行。

  由于刚刚写完,所以没有整理文档,下面的例子演示的只是一部分的功能,代码不是很难,要是想知道更多的功能,可以研究研究源代码。

  目录结构:

test.php

  test.xml

  xml / SimpleDocumentBase.php

  xml / SimpleDocumentNode.php

  xml / SimpleDocumentRoot.php

  xml / SimpleDocumentParser.php

 
文件:test.xml

  <?xml version="1.0" encoding="GB2312"?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  </goods>

  <goods id="food12">

  <name>food12</name>

  <price>22.10</price>

  <desc creator="hahawen">好东西推荐</desc>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>

  文件:test.php

<?php

  require_once "xml/SimpleDocumentParser.php";

  require_once "xml/SimpleDocumentBase.php";

  require_once "xml/SimpleDocumentRoot.php";

  require_once "xml/SimpleDocumentNode.php";

$test = new SimpleDocumentParser();

  $test->parse("test.xml");

  $dom = $test->getSimpleDocument();

echo "<pre>";
echo "<hr><font color=red>";

  echo "下面是通过函数getSaveData()返回的整个xml数据的数组";

  echo "</font><hr>";

  print_r($dom->getSaveData());

echo "<hr><font color=red>";

  echo "下面是通过setValue()函数,给给根节点添加信息,添加后显示出结果xml文件的内容";

  echo "</font><hr>";

  $dom->setValue("telphone", "123456789");

  echo htmlspecialchars($dom->getSaveXml());

echo "<hr><font color=red>";

  echo "下面是通过getNode()函数,返回某一个分类下的所有商品的信息";

  echo "</font><hr>";

  $obj = $dom->getNode("cat_food");

  $nodeList = $obj->getNode();

  foreach($nodeList as $node){

  $data = $node->getValue();

  echo "<font color=red>商品名:".$data[name]."</font><br>";

  print_R($data);

  print_R($node->getAttribute());

  }

echo "<hr><font color=red>";

  echo "下面是通过findNodeByPath()函数,返回某一商品的信息";

  echo "</font><hr>";

  $obj = $dom->findNodeByPath("cat_food|goods_food11");

  if(!is_object($obj)){

  echo "该商品不存在";

  }else{

  $data = $obj->getValue();

  echo "<font color=red>商品名:".$data[name]."</font><br>";

  print_R($data);

  print_R($obj->getAttribute());

  }

echo "<hr><font color=red>";

  echo "下面是通过setValue()函数,给商品\"food11\"添加属性, 然后显示添加后的结果";

  echo "</font><hr>";

  $obj = $dom->findNodeByPath("cat_food|goods_food11");

  $obj->setValue("leaveword", array("value"=>"这个商品不错", "attrs"=>array("author"=>"hahawen", "date"=>date('Y-m-d'))));

  echo htmlspecialchars($dom->getSaveXml());

echo "<hr><font color=red>";

  echo "下面是通过removeValue()/removeAttribute()函数,给商品\"food11\"改变和删除属性, 然后显示操作后的结果";

  echo "</font><hr>";

  $obj = $dom->findNodeByPath("cat_food|goods_food12");

  $obj->setValue("name", "new food12");

  $obj->removeValue("desc");

  echo htmlspecialchars($dom->getSaveXml());

echo "<hr><font color=red>";

  echo "下面是通过createNode()函数,添加商品, 然后显示添加后的结果";

  echo "</font><hr>";

  $obj = $dom->findNodeByPath("cat_food");

  $newObj = $obj->createNode("goods", array("id"=>"food13"));

  $newObj->setValue("name", "food13");

  $newObj->setValue("price", 100);

  echo htmlspecialchars($dom->getSaveXml());

echo "<hr><font color=red>";

  echo "下面是通过removeNode()函数,删除商品, 然后显示删除后的结果";

  echo "</font><hr>";

  $obj = $dom->findNodeByPath("cat_food");

  $obj->removeNode("goods_food12");

  echo htmlspecialchars($dom->getSaveXml());

  ?>

 
文件:SimpleDocumentParser.php
 
<?php

  /**

  *================================================

  *

  * @author     hahawen(大龄青年) 

 * @since      2004-12-04

  * @copyright  Copyright (c) 2004, NxCoder Group

  *

  *================================================

  */

  /**

  * class SimpleDocumentParser

  * use SAX parse xml file, and build SimpleDocumentObject

  * all this pachage's is work for xml file, and method is action as DOM.

  *

  * @package SmartWeb.common.xml

  * @version 1.0

  */

  class SimpleDocumentParser

  {

     private $domRootObject = null;
     private $currentNO = null;

  private $currentName  = null;

  private $currentValue = null;

  private $currentAttribute = null;

     public

  function getSimpleDocument()

  {

  return $this->domRootObject;

  }

     public function parse($file)

  {

  $xmlParser = xml_parser_create();

  xml_parser_set_option($xmlParser,XML_OPTION_CASE_FOLDING,

  0);

  xml_parser_set_option($xmlParser,XML_OPTION_SKIP_WHITE, 1);

  xml_parser_set_option($xmlParser,

  XML_OPTION_TARGET_ENCODING, 'UTF-8');

  xml_set_object($xmlParser, $this);

         xml_set_element_handler($xmlParser, "startElement", "endElement");

  xml_set_character_data_handler($xmlParser,

  "characterData");

         if (!xml_parse($xmlParser, file_get_contents($file)))
         die(sprintf("XML error: %s at line %d", xml_error_string(xml_get_error_code($xmlParser)),

  xml_get_current_line_number($xmlParser)));

         xml_parser_free($xmlParser);
     }
     private function startElement($parser, $name, $attrs)

  {

  $this->currentName = $name;

  $this->currentAttribute = $attrs;

  if($this->currentNO == null)

  {

  $this->domRootObject = new SimpleDocumentRoot($name);

             $this->currentNO = $this->domRootObject;

  }

  else

  {

  $this->currentNO = $this->currentNO->createNode($name, $attrs);

         }

  }

     private function endElement($parser, $name)

  {

  if($this->currentName==$name)

         {

  $tag = $this->currentNO->getSeq();

  $this->currentNO  = $this->currentNO->getPNodeObject();

  if($this->currentAttribute!=null && sizeof($this->currentAttribute)>0)

  $this->currentNO->setValue($name, array('value'=>$this->currentValue, 'attrs'=>$this->currentAttribute));

  else

  $this->currentNO->setValue($name, $this->currentValue);

             $this->currentNO->removeNode($tag);

  }

  else

  {

  $this->currentNO = (is_a($this->currentNO, 'SimpleDocumentRoot'))?   null:

  $this->currentNO->getPNodeObject();

  }

  }

     private function characterData($parser,  $data)

  {

  $this->currentValue = iconv('UTF-8', 'GB2312', $data);

  }

       function __destruct()

  {

  unset($this->domRootObject);

  }

 }

  ?>

 
文件:SimpleDocumentBase.php
 
<?php

  /**

  *=================================================

  *

  * @author     hahawen(大龄青年)

  * @since      2004-12-04

  * @copyright  Copyright (c) 2004, NxCoder Group

  *

  *=================================================

  */

  /**

  * abstract class SimpleDocumentBase

  * base class for xml file parse

  * all this pachage's is work for xml file, and method is action as DOM.

  *

  * 1\ add/update/remove data of xml file.

  * 2\ explode data to array.

  * 3\ rebuild xml file

  *

  * @package SmartWeb.common.xml

  * @abstract

  * @version 1.0

  */

  abstract class SimpleDocumentBase

  {

     private $nodeTag = null;
     private $attributes = array();

  private $values =

  array();

     private $nodes = array();
     function __construct($nodeTag)

  {

  $this->nodeTag = $nodeTag;

  }

     public function getNodeTag()

  {

  return $this->nodeTag;

  }

     public function setValues($values){

  $this->values = $values;

  }

     public function setValue($name, $value)

  {

  $this->values[$name] = $value;

  }

     public function getValue($name=null)

  {

  return $name==null?

  $this->values: $this->values[$name];

  }

 
     public function removeValue($name)

  {

  unset($this->values["$name"]);

  }

     public function setAttributes($attributes){

  $this->attributes = $attributes;

  }

     public function setAttribute($name, $value)

  {

  $this->attributes[$name] = $value;

  }

     public function getAttribute($name=null)

  {

  return $name==null? $this->attributes:

  $this->attributes[$name];

  }

     public function removeAttribute($name)

  {

  unset($this->attributes["$name"]);

  }

     public function getNodesSize()

  {

  return sizeof($this->nodes);

  }

     protected function setNode($name, $nodeId)

  {

  $this->nodes[$name]

  = $nodeId;

  }

     public abstract function createNode($name, $attributes);
     public abstract function removeNode($name);
     public abstract function getNode($name=null);
     protected function getNodeId($name=null)

  {

  return $name==null? $this->nodes: $this->nodes[$name];

  }

     protected function createNodeByName($rootNodeObj, $name, $attributes, $pId)

  {

  $tmpObject = $rootNodeObj->createNodeObject($pId, $name, $attributes);

  $key = isset($attributes[id])?

  $name.'_'.$attributes[id]: $name.'_'.$this->getNodesSize();

  $this->setNode($key, $tmpObject->getSeq());

  return $tmpObject;

  }

     protected function removeNodeByName($rootNodeObj, $name)

  {

  $rootNodeObj->removeNodeById($this->getNodeId($name));

  if(sizeof($this->nodes)==1)

  $this->nodes = array();

  else

  unset($this->nodes[$name]);

  }

     protected function getNodeByName($rootNodeObj, $name=null)

  {

  if($name==null)

  {

  $tmpList = array();

  $tmpIds = $this->getNodeId();

  foreach($tmpIds as $key=>$id)

  $tmpList[$key] = $rootNodeObj->getNodeById($id);

  return $tmpList;

  }

  else

  {

  $id = $this->getNodeId($name);

  if($id===null)

  {

  $tmpIds = $this->getNodeId();

                 foreach($tmpIds as $tkey=>$tid)

  {

  if(strpos($key, $name)==0)

  {

  $id = $tid;

  break;

  }

  }

  }

  return $rootNodeObj->getNodeById($id);

  }

  }

     public function findNodeByPath($path)

  {

  $pos = strpos($path, '|');

  if($pos<=0)

  {

  return $this->getNode($path);

           }

  else

  {

             $tmpObj = $this->getNode(substr($path, 0,

  $pos));

             return is_object($tmpObj)?

  $tmpObj->findNodeByPath(substr($path,

  $pos+1)):

  null;

  }

  }

     public function getSaveData()

  {

  $data = $this->values;

  if(sizeof($this->attributes)>0)

         $data[attrs] = $this->attributes;

  $nodeList = $this->getNode();

           if($nodeList==null)

         return $data;

  foreach($nodeList as $key=>$node)

  {

  $data[$key] = $node->getSaveData();

  }

         return $data;

  }

       public function getSaveXml($level=0)

  {

         $prefixSpace

  = str_pad("",

  $level, "\t");

  $str = "$prefixSpace<$this->nodeTag";

 
         foreach($this->attributes as $key=>$value)

  $str .= " $key=\"$value\"";

         $str .= ">\r\n";

           foreach($this->values as $key=>$value){

             if(is_array($value))

  {

  $str .= "$prefixSpace\t<$key";

                 foreach($value[attrs] as $attkey=>$attvalue)
                 $str .= " $attkey=\"$attvalue\"";
                 $tmpStr = $value[value];

               }

  else

             {

  $str .= "$prefixSpace\t<$key";

                 $tmpStr = $value;

  }

  $tmpStr = trim(trim($tmpStr, "\r\n"));

             $str .= ($tmpStr===null || $tmpStr==="")? " />\r\n": ">$tmpStr</$key>\r\n";
         }
         foreach($this->getNode() as $node)

  $str .= $node->getSaveXml($level+1)."\r\n";

           $str .= "$prefixSpace</$this->nodeTag>";

         return $str;

  }

 
     function __destruct()

  {

  unset($this->nodes, $this->attributes, $this->values);

     }
 }

  ?>

 
文件:SimpleDocumentRoot.php
 
<?php

  /**

  *==============================================

  *

  * @author     hahawen(大龄青年)

  * @since      2004-12-04

  * @copyright  Copyright (c) 2004, NxCoder Group

  *

  *==============================================

  */

  /**

  * class SimpleDocumentRoot

  * xml root class, include values/attributes/subnodes.

  * all this pachage's is work for xml file, and method is action as DOM.

  *

  * @package SmartWeb.common.xml

  * @version 1.0

  */

class SimpleDocumentRoot extends SimpleDocumentBase

  {

  private $prefixStr = '';

  private $nodeLists = array();

    function __construct($nodeTag)

  {

  parent::__construct($nodeTag);

  }

    public function createNodeObject($pNodeId, $name, $attributes)

  {

  $seq = sizeof($this->nodeLists);

  $tmpObject = new SimpleDocumentNode($this,

  $pNodeId, $name, $seq);

  $tmpObject->setAttributes($attributes);

        $this->nodeLists[$seq] = $tmpObject;

  return $tmpObject;

  }

    public function removeNodeById($id)

  {

  if(sizeof($this->nodeLists)==1)

  $this->nodeLists = array();

  else

  unset($this->nodeLists[$id]);

  }

    public function getNodeById($id)

  {

  return $this->nodeLists[$id];

  }

    public function createNode($name, $attributes)

  {

  return $this->createNodeByName($this, $name, $attributes, -1);

  }

    public function removeNode($name)

  {

  return $this->removeNodeByName($this, $name);

  }

    public function getNode($name=null)

  {

  return $this->getNodeByName($this, $name);

  }

    public function getSaveXml()

  {

  $prefixSpace = "";

  $str = $this->prefixStr."\r\n";

  return $str.parent::getSaveXml(0);

  }

  }

  ?>

 
文件:SimpleDocumentNode.php
 
<?php

  /**

  *===============================================

  *

  * @author     hahawen(大龄青年)

  * @since      2004-12-04

  * @copyright  Copyright (c) 2004, NxCoder Group

  *

  *===============================================

  */

  /**

  * class SimpleDocumentNode

  * xml Node class, include values/attributes/subnodes.

  * all this pachage's is work for xml file, and method is action as DOM.

  *

  * @package SmartWeb.common.xml

  * @version 1.0

  */

  class SimpleDocumentNode extends SimpleDocumentBase

  {

  private $seq = null;

  private $rootObject = null;

  private $pNodeId = null;

     function __construct($rootObject, $pNodeId, $nodeTag, $seq)

  {

  parent::__construct($nodeTag);

  $this->rootObject = $rootObject;

  $this->pNodeId = $pNodeId;

  $this->seq = $seq;

  }

     public function getPNodeObject()

  {

  return ($this->pNodeId==-1)?

  $this->rootObject:

  $this->rootObject->getNodeById($this->pNodeId);

  }

     public function getSeq(){

  return $this->seq;

  }

     public function createNode($name, $attributes)

  {

  return $this->createNodeByName($this->rootObject,

  $name, $attributes,

  $this->getSeq());

  }

     public function removeNode($name)

  {

  return $this->removeNodeByName($this->rootObject, $name);

  }

       public function getNode($name=null)

  {

  return $this->getNodeByName($this->rootObject,

  $name);

  }

  }

  ?>

下面是例子运行对结果
 

下面是通过函数getSaveData()返回的整个xml数据的数组
Array

  (

  [name] => 华联

  [address] => 北京长安街-9999号

  [desc] => 连锁超市

  [cat_food] => Array

  (

  [attrs] => Array

  (

  [id] => food

  )

  [goods_food11] => Array

  (

  [name] => food11

  [price] => 12.90

  [attrs] => Array

  (

  [id] => food11

  )

  )

  [goods_food12] => Array

  (

  [name] => food12

  [price] => 22.10

  [desc] => Array

  (

  [value] => 好东西推荐

  [attrs] => Array

  (

  [creator] => hahawen

  )

  )

  [attrs] => Array

  (

  [id] => food12

  )

  )

  )

  [cat_1] => Array

  (

  [goods_tel21] => Array

  (

  [name] => tel21

  [price] => 1290

  [attrs] => Array

  (

  [id] => tel21

  )

  )

  )

  [cat_coat] => Array

  (

  [attrs] => Array

  (

  [id] => coat

  )

  [goods_coat31] => Array

  (

  [name] => coat31

  [price] => 112

  [attrs] => Array

  (

  [id] => coat31

  )

  )

  [goods_coat32] => Array

  (

  [name] => coat32

  [price] => 45

  [attrs] => Array

  (

  [id] => coat32

  )

  )

  )

  [special_hot] => Array

  (

  [attrs] => Array

  (

  [id] => hot

  )

  [goods_0] => Array

  (

  [name] => hot41

  [price] => 99

  )

  )

  )

  


下面是通过setValue()函数,给给根节点添加信息,添加后显示出结果xml文件的内容
<?xml version="1.0" encoding="GB2312" ?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <telphone>123456789</telphone>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  </goods>

  <goods id="food12">

  <name>food12</name>

  <price>22.10</price>

  <desc creator="hahawen">好东西推荐</desc>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>


下面是通过getNode()函数,返回某一个分类下的所有商品的信息
商品名:food11

  Array

  (

  [name] => food11

  [price] => 12.90

  )

  Array

  (

  [id] => food11

  )

  商品名:food12

  Array

  (

  [name] => food12

  [price] => 22.10

  [desc] => Array

  (

  [value] => 好东西推荐

  [attrs] => Array

  (

  [creator] => hahawen

  )

  )

  )

  Array

  (

  [id] => food12

  )

  


下面是通过findNodeByPath()函数,返回某一商品的信息
商品名:food11

  Array

  (

  [name] => food11

  [price] => 12.90

  )

  Array

  (

  [id] => food11

  )

  


下面是通过setValue()函数,给商品"food11"添加属性, 然后显示添加后的结果
<?xml version="1.0" encoding="GB2312" ?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <telphone>123456789</telphone>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>

  </goods>

  <goods id="food12">

  <name>food12</name>

  <price>22.10</price>

  <desc creator="hahawen">好东西推荐</desc>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>


下面是通过removeValue()/removeAttribute()函数,给商品"food11"改变和删除属性, 然后显示操作后的结果
<?xml version="1.0" encoding="GB2312" ?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <telphone>123456789</telphone>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>

  </goods>

  <goods id="food12">

  <name>new food12</name>

  <price>22.10</price>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>


下面是通过createNode()函数,添加商品, 然后显示添加后的结果
<?xml version="1.0" encoding="GB2312" ?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <telphone>123456789</telphone>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>

  </goods>

  <goods id="food12">

  <name>new food12</name>

  <price>22.10</price>

  </goods>

  <goods id="food13">

  <name>food13</name>

  <price>100</price>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>


下面是通过removeNode()函数,删除商品, 然后显示删除后的结果
<?xml version="1.0" encoding="GB2312" ?>

  <shop>

  <name>华联</name>

  <address>北京长安街-9999号</address>

  <desc>连锁超市</desc>

  <telphone>123456789</telphone>

  <cat id="food">

  <goods id="food11">

  <name>food11</name>

  <price>12.90</price>

  <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>

  </goods>

  <goods id="food13">

  <name>food13</name>

  <price>100</price>

  </goods>

  </cat>

  <cat>

  <goods id="tel21">

  <name>tel21</name>

  <price>1290</price>

  </goods>

  </cat>

  <cat id="coat">

  <goods id="coat31">

  <name>coat31</name>

  <price>112</price>

  </goods>

  <goods id="coat32">

  <name>coat32</name>

  <price>45</price>

  </goods>

  </cat>

  <special id="hot">

  <goods>

  <name>hot41</name>

  <price>99</price>

  </goods>

  </special>

  </shop>