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

<?xml version="1.0" encoding="UTF-8"?>
<Xml>
    <ReportType>HZD</ReportType>
    <Title>业务</Title>
    <Body>
        <DateTime>2016-09-13</DateTime>
        <Name>ekihheiiu</Name>
        <Number>H8349567</Number>
        <OrderItems>
            <OrderItem>
                <TypeName>套餐</TypeName>
                <PhoneNo Value ="KDYX5)">
                    <Item>
                        <Name>单一宽</Name>
                        <BeginTime>安装完成当天</BeginTime>
                        <EndTime>2017年09月</EndTime>
                    </Item>
                </PhoneNo>
            </OrderItem>
       <OrderItem> 
	  <TypeName>可选包</TypeName>
        <PhoneNo Value=" 138788">
          <Item>
            <Name>中国人</Name>
            <BeginTime>2017年10月01日</BeginTime>
            <EndTime>--</EndTime>
          </Item>
        </PhoneNo>
      </OrderItem>
        </OrderItems>
        <Remark>测试</Remark>
    </Body>
</Xml>

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> 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<HZDOrderItem> getHZDOrderItem() {
		return HZDOrderItem;
	}
	public void setHZDOrderItem(List<HZDOrderItem> hZDOrderItem) {
		HZDOrderItem = hZDOrderItem;
	}
}

package test.xml;

import java.util.List;

import test.OrderItemList;

public class HZDOrderItem {
   
	private String typeName;
	
	private List<PhoneNo> phoneNo;
	
	public String getTypeName() {
		return typeName;
	}
	public void setTypeName(String typeName) {
		this.typeName = typeName;
	}
	public List<PhoneNo> getPhoneNo() {
		return phoneNo;
	}
	public void setPhoneNo(List<PhoneNo> 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());
		 List<Element>HzdOrderItemLists=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<HZDOrderItem> HzdOrderItemList=new ArrayList<HZDOrderItem>();
		 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
			List<Element>PhoneNoList = element.getChildren("PhoneNo"); 
			String value=PhoneNoList.get(i).getAttributeValue("Value");
			
			List<Element> ItemList = element.getChild("PhoneNo").getChildren("Item");
                 List<PhoneNo>phoneNoList=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）

<XMLData>
	<AreaCode>551</AreaCode>
	<Source>1001</Source>
	<Persons>
		<person>
			<PersonType>1</PersonType>
			<CardID>083356</CardID>
		</person>
	</Persons>
	<Ext1>扩充</Ext1>
	<Ext2>扩充</Ext2>
	<Ext3>扩充</Ext3>
</XMLData>

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;
	}
	
}

java中 使用jdom 解析和生成循环嵌套的xml格式文件

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java中使用jdom 解析和生成循环嵌套的xml格式文件