DOM创建xml文档如何处理空标记问题

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DOM创建xml文档如何处理空标记问题5

现在遇到了一个非常棘手的问题在创建xml报文发送给系统处理时系统只认类似如下的xml标记：

<stream></stream>

而不认识

<stream/>

标记。在xml中都是空标记可是变态的系统部人遇到就报错。我使用dom生成的xml文档如何才能生成

<stream></stream>

标记呢？希望得到大家的帮忙。这是我的代码：

package com.tp.test;

import java.io.ByteArrayOutputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 * 
 * <p>Title: DomCreateXml.java</p>
 * 
 * <p>Description: </p>
 * 
 * <p>Date: Dec 3, 2013</p>
 * 
 * <p>Time: 6:24:54 PM</p>
 * 
 * <p>Copyright: Copyright (c) 2013</p>
 * 
 * <p>Company: zhongpin</p>
 * 
 * @author zhangyq
 * @version 2.0
 * 
 * <p>============================================</p>
 * <p>Modification History
 * <p>Mender: </p>
 * <p>Date: </p>
 * <p>Reason: </p>
 * <p>============================================</p>
 */
public class DomCreateXml {

	/**
	 * @param args
	 * @throws Exception 
	 */
	public static void main(String[] args) throws Exception {
		DocumentBuilderFactory localDocumentBuilderFactory = DocumentBuilderFactory
				.newInstance();
		DocumentBuilder localDocumentBuilder = localDocumentBuilderFactory
				.newDocumentBuilder();
		Document localDocument = localDocumentBuilder.newDocument();
		
		Element rootEle = localDocument.createElement("stream");
		
		localDocument.appendChild(rootEle);
		System.out.println(xmlDoc(localDocument));
		

	}
	private static String xmlDoc(Document document)throws Exception{
		//首先创建转化工厂

		TransformerFactory transFactory=TransformerFactory.newInstance();

		//创建Transformer，它能够将源树转换为结果树

		Transformer transformer = transFactory.newTransformer();

		//接下来设置输出属性

		transformer.setOutputProperty("indent", "yes");

		DOMSource source =new DOMSource(document);
		StreamResult result = new StreamResult();


		//1.将XML字符串输出到String字符串中
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		result.setOutputStream(baos);
		
		transformer.transform(source, result);//后，
        
		return   baos.toString();
	}

}

输出的结果为：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<stream/>

我想要的结果为：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<stream></stream>

谢谢大家指点！！！

XML DOM

2013年12月03日 18:27

javatozhang
11
0 0 5

1个答案按时间排序按投票排序

0 0

在代码54行添加以下代码：

rootEle.appendChild(localDocument.createTextNode(""));

具体代码如下：

package com.tp.test;

import java.io.ByteArrayOutputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.TypeInfo;
import org.w3c.dom.UserDataHandler;

/**
 * 
 * <p>Title: DomCreateXml.java</p>
 * 
 * <p>Description: </p>
 * 
 * <p>Date: Dec 3, 2013</p>
 * 
 * <p>Time: 6:24:54 PM</p>
 * 
 * <p>Copyright: Copyright (c) 2013</p>
 * 
 * <p>Company: zhongpin</p>
 * 
 * @author zhangyq
 * @version 2.0
 * 
 * <p>============================================</p>
 * <p>Modification History
 * <p>Mender: </p>
 * <p>Date: </p>
 * <p>Reason: </p>
 * <p>============================================</p>
 */
public class DomCreateXml {

	/**
	 * @param args
	 * @throws Exception 
	 */
	public static void main(String[] args) throws Exception {
		DocumentBuilderFactory localDocumentBuilderFactory = DocumentBuilderFactory
				.newInstance();
		DocumentBuilder localDocumentBuilder = localDocumentBuilderFactory
				.newDocumentBuilder();
		Document localDocument = localDocumentBuilder.newDocument();
		Element rootEle = localDocument.createElement("stream");
		localDocument.appendChild(rootEle);
//		Element memberList = localDocument.createElement("m");  
		rootEle.appendChild(localDocument.createTextNode(""));
		System.out.println(xmlDoc(localDocument));
		

	}
	private static String xmlDoc(Document document)throws Exception{
		//首先创建转化工厂

		TransformerFactory transFactory=TransformerFactory.newInstance();

		//创建Transformer，它能够将源树转换为结果树

		Transformer transformer = transFactory.newTransformer();

		//接下来设置输出属性

		transformer.setOutputProperty("indent", "yes");

		DOMSource source =new DOMSource(document);
		StreamResult result = new StreamResult();


		//1.将XML字符串输出到String字符串中
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		result.setOutputStream(baos);
		
		transformer.transform(source, result);//后，
        
		return   baos.toString();
	}

}

最后运行结果：
<?xml version="1.0" encoding="UTF-8"?>
<stream></stream>

2013年12月18日 16:36