dom4j 解析 xml

 

java dom4j 解析 xml 代码

import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

 

public class ReadyXML {

 public List<Column> readlyXML(String xmlURL) throws Exception{
  
  List<Column> list =new LinkedList<Column>();
  
     SAXReader reader =new SAXReader();
     Document document =reader.read(xmlURL);
     Element root = document.getRootElement();
     return disk_readlyXML(root,list);
 }
 
 public List<Column> disk_readlyXML(Element root,List<Column> list) throws Exception{
  
     
      for (Iterator iter = root.elementIterator(); iter.hasNext();) {
    Element element = (Element) iter.next();
    Column column =new Column();
    Attribute attributeID = element.attribute("id");
    //  判断是有写个 id 属性
       if (attributeID!=null) {
     if (attributeID.getValue()!=null&&!"".equals(attributeID.getValue())) {
      column.setId(attributeID.getValue());
     }else {
      column.setId(null);
     }
    }
       Attribute attributeTITLE = element.attribute("title");
    //  判断是有写个 title 属性
       if (attributeTITLE!=null) {
     if (attributeTITLE.getValue()!=null&&!"".equals(attributeTITLE.getValue())) {
      column.setTitle(attributeTITLE.getValue());
     }else {
      column.setTitle(null);
     }
    }
       Attribute attributeVALUE = element.attribute("value");
    //  判断是有写个 value 属性
       if (attributeVALUE!=null) {
     if (attributeVALUE.getValue()!=null&&!"".equals(attributeVALUE.getValue())) {
      column.setValue(attributeVALUE.getValue());
     }else {
      column.setValue(null);
     }
    }
       Attribute attributeNAME = element.attribute("name");
    //  判断是有写个 name 属性
       if (attributeNAME!=null) {
     if (attributeNAME.getValue()!=null&&!"".equals(attributeNAME.getValue())) {
      column.setValue(attributeNAME.getValue());
     }else {
      column.setValue(null);
     }
    }
       Attribute attributePID = element.attribute("pid");
    //  判断是有写个 pid 属性
       if (attributePID!=null) {
     if (attributePID.getValue()!=null&&!"".equals(attributePID.getValue())) {
      column.setPid(attributePID.getValue());
     }else {
      column.setPid(null);
     }
    }
       list.add(column);
       disk_readlyXML(element,list);
   }
  return list;
 }
 

public static void main(String[] args) {
 
   ReadyXML readyXML =new ReadyXML();
   try {
  List<Column> list = readyXML.readlyXML("d:/menu.xml");
  for (Column column : list) {
   System.out.println("id:  "+column.getId());
   System.out.println("title:  "+column.getTitle());
   System.out.println("name:  "+column.getName());
   System.out.println("value:  "+column.getValue());
   System.out.println("pid:  "+column.getPid());
   System.out.println("--------------------------");
  }
 } catch (Exception e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
  }

class Column{
 
 private String id;
 private String name;
 private String title;
 private String value;
 private String pid;
 public String getId() {
  return id;
 }
 public void setId(String id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getTitle() {
  return title;
 }
 public void setTitle(String title) {
  this.title = title;
 }
 public String getValue() {
  return value;
 }
 public void setValue(String value) {
  this.value = value;
 }
 public String getPid() {
  return pid;
 }
 public void setPid(String pid) {
  this.pid = pid;
 }
}

}
  

xml 的数据 结构

 

<?xml version="1.0" encoding="UTF-8"?>

<root>
    <column pid="0" name="aaaa" title="a" value="" id="1">
      <column pid="1" name="0001" title="a" value="" id="11" >
        <column pid="11" name="00010001" title="11" value="" id="111" >
        </column>
     <column pid="11" name="00010002" title="12" value="" id="112" >
        </column>
   </column>
      <column pid="1" name="0001" title="a" value="" id="12" >
   </column>
 </column>
 <column pid="0" name="bbbb" title="b" value="" id="2">
      <column pid="2" name="0001" title="a" value="" id="21" >
        <column pid="21" name="00020001" title="21" value="" id="211" >
        </column>
     <column pid="21" name="00020002" title="22" value="" id="212" >
        </column>
   </column>
      <column pid="2" name="0002" title="a" value="" id="21" >
   </column>
 </column>
 
</root>