java注解生成xml和包含CDATA问题

时间：2023-03-08 17:44:34

百度java生成xml，有一大推的文章，主要的生成方式一种使用Dom4J ,还有一种使用Jdk自带注解类！

下面主要整理我注解类的使用，（可以参考这篇文章Dom4J生成xml和包含CDATA问题）和xml中CDATA 问题的解决方法！

1:要生成的xml原始文件！

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

<item>

  <id>35399645973</id>

  <title><![CDATA[补水首选水密码水保湿美白护洗护组合三件]]> </title>

 <category><![CDATA[美妆>保湿>洗护]]></category>

  <url><![CDATA[http://www.example.com/detail-35399645973]]> </url>

  <url_wap><![CDATA[http://m.example.com/de99645973]]> </url_wap>

  <price>310</price>

  <promotion_price>93.8</promotion_price>

<wap_price>85</wap_price>

<sub_item_ids>

		<sub_item_id>35399645973_1</sub_item_id>

		<sub_item_id>35399645973_2</sub_item_id>

		<sub_item_id>35399645973_3</sub_item_id>

		……

</sub_item_ids>

  <detail><![CDATA[商品详情，支持html图文混排]]> </detail>

  <status>1<status>

	<pic_main>

    <img>

      <url><![CDATA[http://www.example.com/10777829/T_400x400.jpg]]> </url>

      <size>400x400</size>

    </img>

  </pic_main>

  <pic_extra>

    <img>

      <url><![CDATA[http://www.example.com/10777821_400x400.jpg]]> </url>

      <size>400x400</size>

	</img>

	<img>

      <url><![CDATA[http://www.example.com/10777822_400x400.jpg]]> </url>

      <size>400x400</size>

    </img>

  </pic_extra >

</item>

2：xml对应的model类！

(1):FanLiProductInofMsg.java

import java.util.List;

import javax.xml.bind.annotation.XmlAttribute;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlElementWrapper;

import javax.xml.bind.annotation.XmlRootElement;

/**

 *

 * @author aflyun

 * @date 2016.06.12

 *

 */

@XmlRootElement(name="item")

public class FanLiProductInofMsg {

	@XmlAttribute

	private String version;

	@XmlElement

	private String id;

	@XmlElement

	private String title;

	@XmlElement

	private String category;

	@XmlElement

	private String url;//Pc商品的url

	@XmlElement(name="url_wap")

	private String urlWap;//Wap商品的url  url_wap

	@XmlElement

	private String price;

	@XmlElement(name="promotion_price")

	private String promotionPrice;//promotion_price

	@XmlElement(name="wap_price")

	private String wapPrice;//wap_price

	@XmlElementWrapper(name="sub_item_ids")

	@XmlElement(name="sub_item_id")

	private List<String> subItemIds;//sub_item_ids

	@XmlElement

	private String detail;//detail

	@XmlElement

	private String status;//status

	@XmlElementWrapper(name="pic_main")

	@XmlElement(name="img")

	private List<Img> mainImg;//pic_main

	@XmlElementWrapper(name="pic_extra")

	@XmlElement(name="img")

	private List<Img> extraImg;//pic_extra

	public void setVersion(String version) {

		this.version = version;

	}

	public void setId(String id) {

		this.id = id;

	}

	public void setTitle(String title) {

		this.title = title;

	}

	public void setCategory(String category) {

		this.category = category;

	}

	public void setUrl(String url) {

		this.url = url;

	}

	public void setUrlWap(String urlWap) {

		this.urlWap = urlWap;

	}

	public void setPrice(String price) {

		this.price = price;

	}

	public void setPromotionPrice(String promotionPrice) {

		this.promotionPrice = promotionPrice;

	}

	public void setWapPrice(String wapPrice) {

		this.wapPrice = wapPrice;

	}

	public void setSubItemIds(List<String> subItemIds) {

		this.subItemIds = subItemIds;

	}

	public void setDetail(String detail) {

		this.detail = detail;

	}

	public void setStatus(String status) {

		this.status = status;

	}

	public void setMainImg(List<Img> mainImg) {

		this.mainImg = mainImg;

	}

	public void setExtraImg(List<Img> extraImg) {

		this.extraImg = extraImg;

	}

}

(2):Img .java

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlRootElement;

/**

 *

 * @author aflyun

 * @date 2016.06.12

 *

 */

@XmlRootElement

public class Img {

	@XmlElement(name="url")

	private String url;

	@XmlElement(name="size")

	private String size;

	public void setUrl(String url) {

		this.url = url;

	}

	public void setSize(String size) {

		this.size = size;

	}

}

3：生成过程，已经CDATA问题处理！

package com.dufy.test.xml;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileWriter;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.List;

import javax.xml.bind.JAXBContext;

import javax.xml.bind.Marshaller;

import javax.xml.transform.sax.SAXResult;

import org.apache.xml.serialize.OutputFormat;

import org.apache.xml.serialize.XMLSerializer;

import org.junit.Test;

import com.kuyu.b2b2c.product.fanli.vo.FanLiProductInofMsg;

import com.kuyu.b2b2c.product.fanli.vo.Img;

public class JuintXmlTest {

	private static Marshaller marshal;

	@Test

	public void testXml() throws Exception {

		List<String> list = new ArrayList<String>();

		list.add("11_11_11");

		list.add("22_22_22");

		list.add("33_33_33");

		List<Img> imgList = new ArrayList<Img>();

		Img img = null;

		for (int i = 0; i < 2; i++) {

			img = new Img();

			img.setUrl("-" + i + "-");

			img.setSize("40×40");

			imgList.add(img);

		}

		FanLiProductInofMsg fps = new FanLiProductInofMsg();

		fps.setVersion("1.0");

		fps.setId("110");

		fps.setTitle("4K 高清");

		fps.setCategory("电视>4K>高清");

		fps.setUrl("http://baidu.com");

		fps.setUrlWap("http://baidu.wap.com");

		fps.setPrice("100");

		fps.setPromotionPrice("111");

		fps.setWapPrice("113");

		fps.setSubItemIds(list);

		fps.setDetail("wwwwwwwwwwwwwwwwwwwwwww");

		fps.setStatus("1");

		fps.setMainImg(imgList);

		fps.setExtraImg(imgList);

		 PrintWriter pw = new PrintWriter(new File("D:/test.xml"));

		 String ojbectToXmlWithCDATA = ojbectToXmlWithCDATA(FanLiProductInofMsg.class, fps);

		 System.out.println(ojbectToXmlWithCDATA);

		 pw.println(ojbectToXmlWithCDATA);

		 pw.close();

	}

	 public static String ojbectToXmlWithCDATA(Class clazz, Object obj) throws Exception {  

	        JAXBContext context = JAXBContext.newInstance(clazz);

	        // configure an OutputFormat to handle CDATA

		    OutputFormat of = new OutputFormat();

		    of.setCDataElements(

				  new String[] { "^title", //

						  		 "^category",

						  		 "^url",

						  		 "^url_wap",

						  		 "^detail"

						  		 }); //  

		    // set any other options you'd like

		    of.setPreserveSpace(true);

		    of.setIndenting(true);

		    // create the serializer

	        ByteArrayOutputStream op = new ByteArrayOutputStream();

	        XMLSerializer serializer = new XMLSerializer(op, of);

	        SAXResult result = new SAXResult(serializer.asContentHandler());

	        Marshaller mar = context.createMarshaller();

	        mar.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

	        mar.marshal(obj, result);  

	        return op.toString("utf-8");

	    }  

}

setCDataElements 这里面你标注需CDATA 的字段！

上面的这个例子可以直接拷贝运行，网上还一些其他的方法生成xml和CDATA，如果你有好的方法，欢迎分享给我，谢谢！

4:参考文章

（1）：Jaxb2 转换XML文档

（2）：Jaxb annotation初步使用

（3）：三步解决JAXB生成XML包含CDATA问题—JAVA编程

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