xml的复杂解析取值和节点插入导出合并后的xml文件

转载：http://blog.csdn.net/chaiqi/article/details/1147713

如果你正准备 对xml进行解析,而这个xml里面元素放置不规则,个个节点的值取得麻烦,然后又想 往这个xml中随心所欲的插入节点,导出完整的xml文件, 那么请 that

public static String matchtoAppXml(String cpxml_path){

  

   try {

    InputStream in = null;

    // 初始化XML解析

    SAXBuilder builder = new SAXBuilder();

    Document requestDoc = null;

    requestDoc = builder.build(cpxml_path);

    Element root = (Element)requestDoc.getRootElement();

    Iterator list = root.getChildren().iterator();

    while(list.hasNext()) {

     //1-取得外挂信息

     Element node = (Element) list.next();

     String s_city="";

     String s_name="";

     String s_add="";

     String s_tel="";

     //System.out.println(node.getChild("Na").getAttributeValue("v"));

     if (node.getChild("Na") != null) {

      s_name = node.getChild("Na").getAttributeValue("v");

     }

     if (node.getChild("Add") != null) {

      s_add = node.getChild("Add").getAttributeValue("v");

     }

 //查询xml重的某个字段如

-
<Poi id="0">

 
<Na
v="上海西门子开关有限公司" />

 
<Cla
v="BA80" />

 
<Dis
v="310112" />

 
<add
v="上海市闵行经济技术开发区天宁路298号" />

 
<Tel
v="021-24030000" />

-
<Other>

 
<case
n="from" v="elong"
i="Y" />

 
<case
n="city" v="北京"
i="Y" />

 
<case
n="url" v="http://www.powerproduct.com/user1/index.asp?id=12702"
i="Y" />

 
<case
n="fax" v="021-64924606"
i="Y" />

 
</Other>

 
</Poi>

对应代码如下
     if (XPath.selectSingleNode(node,"Other/ca
d59f
se[@n='city']/@v")!= null) {

      Attribute s_city_att = (Attribute)(XPath.selectSingleNode(node,"Other/case[@n='city']/@v"));

      s_city = s_city_att.getValue();

     }

     

     //2-取得匹配得到的 俗名/经度纬度

     Poi poi = getPoi(s_city,s_name,s_add,s_tel);

     
     //3-插入外挂数据中

     if(poi!=null){

      Element pop=new Element("Pop");

      //pop.setText("aaaa");

      pop.setAttribute("v",poi.getName());

      node.addContent(2,pop);//第二位插入

      

      Element geo=new Element("Geo");

      geo.setAttribute("lo",Integer.toString(poi.getLongitude()));

      geo.setAttribute("la",Integer.toString(poi.getLatitude()));

      node.addContent(3,geo);
     }else{

      node.removeContent();
     }

     

    }
    //4-保存

    XMLOutputter so=new XMLOutputter();

    FileOutputStream fos = new FileOutputStream("d:/out.xml");  

    so.output(requestDoc,fos);

得到的out.xml的效果如下:

 <Poi id="2">    
<Na
v="昆仑饭店" />

 
<Pop
v="昆仑饭店" />

 
<Geo
lo="11646273" la="3994418"
/>

 
<Cla
v="2020" />

 
<Dis
v="110105" />

 
<add
v="北京朝阳区新源南路2号" />

 
<Tel
v="010-65903388" />

-
<Other>

 
<case
n="from" v="derby"
i="Y" />

 
<case
n="city" v="北京"
i="N" />

 
<case
n="passportCode" v="P07000301DD77B864"
i="N" />

 
<case
n="url" v="http://api.51ditu.com"
i="N" />

 
</Other>

 
</Poi>
    

   } catch (MalformedURLException e) {

    // TODO 自动生成 catch 块

    e.printStackTrace();

   } catch (UnsupportedEncodingException e) {

    // TODO 自动生成 catch 块

    e.printStackTrace();

   } catch (IOException e) {

    // TODO 自动生成 catch 块

    e.printStackTrace();

   } catch (JDOMException e) {

    // TODO 自动生成 catch 块

    e.printStackTrace();

   }

 

  return "";

 }