欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识！
您现在的位置是： 首页

java中 使用jdom 解析和生成循环嵌套的xml格式文件

程序员文章站 2022-05-28 12:36:05
...
        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;
	}
	
}







相关标签： xml java jdom xml和bean相互转化

上一篇： JAVA使用JDOM读取XML文件

下一篇： 2.Qt 5 模板库、工具类及控件（笔记）

推荐阅读