java中 使用jdom 解析和生成循环嵌套的xml格式文件

        xml 和bean的相互转换。在公司里很多接口的实现都是通过请求xml参数，得到xml后进行解析然后获取需要的信息，最后还要返回xml格式的参数来进行验证。因此这里介绍一种开源项目JDOM来解析和生成xml，它基于树型结构，利用纯JAVA的技术对XML文档实现解析、生成、序列化以及多种操作。JDOM 直接为JAVA编程服务。它利用更为强有力的JAVA语言的诸多特性（方法重载、集合概念以及映射），把SAX和DOM的功能有效地结合起来。

准备工作：下面是要解析的xml文件

    HZD
    
    
        2016-09-13
        ekihheiiu
        H8349567
        
            
                套餐
                
                    
                        单一宽
                        安装完成当天
                        2017年09月
                    
                
            
        
	  可选包
        
          
            中国人
            2017年10月01日
            --
          
        
      
        
        测试
    

需要使用到的工具类 XMLUtil  ，这个类封装了JDOM的具体实现，提供了常用的一些方法，避免直接使用JDOM的API。

1.解析xml文件（将xml转换成bean）

实现思路 : ① 实例化XMLUtil的工具类。

                       ② 通过实例化的工具类和XPath来得到xml文件各节点下的数据

                       ③ 用bean来保存xml中的数据 以供使用

   实现代码  

package test.xml;

public class HZDXml {
    
	private String reportType;
	private String title;
	private HZDBody hzdBody;

	public String getReportType() {
		return reportType;
	}
	public void setReportType(String reportType) {
		this.reportType = reportType;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	public HZDBody getHzdBody() {
		return hzdBody;
	}
	public void setHzdBody(HZDBody hzdBody) {
		this.hzdBody = hzdBody;
	}
}

package test.xml;

import java.util.List;

public class HZDBody {
   
	private String dateTime;
	private String name;
	private String number;
	private String Remark;
	private List HZDOrderItem;
	public String getDateTime() {
		return dateTime;
	}
	public void setDateTime(String dateTime) {
		this.dateTime = dateTime;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getNumber() {
		return number;
	}
	public void setNumber(String number) {
		this.number = number;
	}
	public String getRemark() {
		return Remark;
	}
	public void setRemark(String remark) {
		Remark = remark;
	}
	public List getHZDOrderItem() {
		return HZDOrderItem;
	}
	public void setHZDOrderItem(List hZDOrderItem) {
		HZDOrderItem = hZDOrderItem;
	}
}

package test.xml;

import java.util.List;

import test.OrderItemList;

public class HZDOrderItem {
   
	private String typeName;
	
	private List phoneNo;
	
	public String getTypeName() {
		return typeName;
	}
	public void setTypeName(String typeName) {
		this.typeName = typeName;
	}
	public List getPhoneNo() {
		return phoneNo;
	}
	public void setPhoneNo(List phoneNo) {
		this.phoneNo = phoneNo;
	}
}

package test.xml;

public class PhoneNo {
    
	private String value;
	private String name;
	private String beginTime;
	private String endTime;

	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getBeginTime() {
		return beginTime;
	}
	public void setBeginTime(String beginTime) {
		this.beginTime = beginTime;
	}
	public String getEndTime() {
		return endTime;
	}
	public void setEndTime(String endTime) {
		this.endTime = endTime;
	}
	public String getValue() {
		return value;
	}
	public void setValue(String value) {
		this.value = value;
	}
	
}

public  static HZDXml getHZDXMLDataByStr() throws Exception {
		 
		  
		 String xmlContent =XMLUtil.xml2Str("resources/template/HZD.xml"); // 在项目中读取本地的一个xml文件 
		 HZDXml HzdXml=null;
		 XMLUtil xMLUtil = XMLUtil.getInsance(new ByteArrayInputStream(xmlContent
					.getBytes("UTF-8")));                     //初始化XMLUtil工具类                 
		 HzdXml =new HZDXml();
		 
		 HzdXml.setReportType(xMLUtil.getSingleElementText("Xml/ReportType"));    //得到Xml文件中 Xml节点下的ReportType
		// System.out.println("ReportType: "+HzdXml.getReportType());
		
		
	         HzdXml.setTitle(xMLUtil.getSingleElementText("Xml/Title"));
	     
                 HZDBody hzdBodyah=new HZDBody();      
                 hzdBodyah.setDateTime(xMLUtil.getSingleElementText("Xml/Body/DateTime"));
		
	     
		 hzdBodyah.setName(xMLUtil.getSingleElementText("Xml/Body/Name"));
		// System.out.println("Name:  "+hzdBodyah.getName());
		 
		 hzdBodyah.setNumber(xMLUtil.getSingleElementText("Xml/Body/Number"));
		// System.out.println("Number:  "+hzdBodyah.getNumber());
		 
		 hzdBodyah.setRemark(xMLUtil.getSingleElementText("Xml/Body/Remark"));
		// System.out.println("Remark:  "+hzdBodyah.getRemark());
		 ListHzdOrderItemLists=xMLUtil.getAllElements("Xml/Body/OrderItems/OrderItem"); 
               //得到xml数据中 OrderItems节点下的所有OrderItem节点的集合
		 int i=0;
		 List HzdOrderItemList=new ArrayList();
		 for(Element element:HzdOrderItemLists){
			 //对获得到的OrderItem的集合进行遍历
			 HZDOrderItem HzdOrderItem=new HZDOrderItem();
			 HzdOrderItem.setTypeName(element.getChildTextTrim("TypeName"));
			// System.out.println("TypeName :"+HzdOrderItem.getTypeName());
		        //取得PhoneNo节点下的所有Item节点的集合
			ListPhoneNoList = element.getChildren("PhoneNo"); 
			String value=PhoneNoList.get(i).getAttributeValue("Value");
			
			List ItemList = element.getChild("PhoneNo").getChildren("Item");
                 ListphoneNoList=new ArrayList();
		for(Element element2 : ItemList){     //对Item集合进行遍历
            	        PhoneNo phoneNo = new PhoneNo();
            	        phoneNo.setName(element2.getChildTextTrim("Name"));
            	        System.out.println("Name :"+phoneNo.getName());
            	        phoneNo.setBeginTime(element2.getChildTextTrim("BeginTime"));
            	        phoneNo.setEndTime(element2.getChildTextTrim("EndTime"));
            	        phoneNo.setValue(value);
            	        System.out.println("Value :"+phoneNo.getValue());
            	        phoneNoList.add(phoneNo);
                    }
			HzdOrderItem.setPhoneNo(phoneNoList);
			 HzdOrderItemList.add(HzdOrderItem);
		 }
		 hzdBodyah.setHZDOrderItem(HzdOrderItemList);
		 
		 HzdXml.setHzdBody(hzdBodyah);
		 return HzdXml;
		
	}

   

2.生成的xml文件 （将bean对象转换生成xml文件）

	551
	1001
	
		
			1
			083356
		
	
	扩充
	扩充
	扩充

public String createQueryPrePhotoXML(QueryPrePhotoXML queryPhotoXML) {
		String xml = "";

		Element XMLData = new Element("XMLData");  //创建根节点

		Element AreaCode = new Element("AreaCode");
		AreaCode.setText(queryPhotoXML.getAreaCode());
     
		Element Source = new Element("Source");
		Source.setText(queryPhotoXML.getSource());
		
		Element Ext1 = new Element("Ext1");
		Ext1.setText(queryPhotoXML.getExt1());
		Element Ext2 = new Element("Ext2");
		Ext2.setText(queryPhotoXML.getExt2());
		Element Ext3 = new Element("Ext3");
		Ext3.setText(queryPhotoXML.getExt3());
		
		Element Persons=new Element("Persons");

		Element person=new Element("person");
		Element PersonType=new Element("PersonType");
                PersonType.setText(queryPhotoXML.getPerson().getPersonType());
		
		Element CardID=new Element("CardID");
		CardID.setText(queryPhotoXML.getPerson().getCardID());
		// 表头
		
		
		XMLData.addContent(AreaCode);
		XMLData.addContent(Source);
		person.addContent(PersonType);
		person.addContent(CardID);
		
		Persons.addContent(person);
		
		XMLData.addContent(Persons);
		XMLData.addContent(Ext1);
		XMLData.addContent(Ext2);
		XMLData.addContent(Ext3);
	

		Document doc = new Document(XMLData);
		XMLOutputter out = new XMLOutputter();
		Format format = Format.getCompactFormat();
		format.setEncoding("UTF-8");
		format.setIndent("\t");
		out.setFormat(format);// 设置文件编码，默认为UTF-8

		ByteArrayOutputStream bo = new ByteArrayOutputStream();
		try {
			out.output(doc, bo);
			logger.info("QueryPrePhoto:"
					+ new String(bo.toByteArray(), "UTF-8"));
			xml = new String(bo.toByteArray(), "UTF-8");
		} catch (Exception e) {
			logger.error(e.getMessage());
		}
		return xml;
	}

public class QueryPrePhotoXML {
    private String AreaCode;
    private String Source;
    private String Ext1;
    private String Ext2;
    private String Ext3;
    private Persons person;
	public String getAreaCode() {
		return AreaCode;
	}
	public void setAreaCode(String areaCode) {
		AreaCode = areaCode;
	}
	public String getSource() {
		return Source;
	}
	public void setSource(String source) {
		Source = source;
	}
	public String getExt1() {
		return Ext1;
	}
	public void setExt1(String ext1) {
		Ext1 = ext1;
	}
	public String getExt2() {
		return Ext2;
	}
	public void setExt2(String ext2) {
		Ext2 = ext2;
	}
	public String getExt3() {
		return Ext3;
	}
	public void setExt3(String ext3) {
		Ext3 = ext3;
	}
	public Persons getPerson() {
		return person;
	}
	public void setPerson(Persons person) {
		this.person = person;
	}
    
}

package com.goldgrid.post.bean;

public class Persons {

	private String PersonType;
	private String CardID;
	
	public String getPersonType() {
		return PersonType;
	}
	public void setPersonType(String personType) {
		PersonType = personType;
	}
	public String getCardID() {
		return CardID;
	}
	public void setCardID(String cardID) {
		CardID = cardID;
	}
	
}