如何在java中将String转换为DOM文档对象？ [英] How to convert String to DOM Document object in java?

问题描述

我有一个例子，例如获取XML并将XML元素转换为文档对象，并获取已经创建的元素值和属性。

这里是一段代码我尝试将字符串转换为DOM文档对象

  String xmlString =< r>< e> D< / e取代;< / R>中; 
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance（）; 
 DocumentBuilder builder = factory.newDocumentBuilder（）; 
 org.w3c.dom.Document document = builder.parse（new InputSource（new StringReader（xmlString）））; 
 TransformerFactory transformerFactory = TransformerFactory.newInstance（）; 
变压器变压器= transformerFactory.newTransformer（）; 
 DOMSource source = new DOMSource（document）; 
 StreamResult result = new StreamResult（new StringWriter（））; 
 transformer.transform（source，result）; 
 String str1 = result.getWriter（）。toString（）; 
 System.out.println（str1）; 
  

但是，这种情况仅适用于没有属性的元素
如果

  String xmlString =< element attribname =valueattribname1 =value1> pcdata< / element> 
  

我们正在为属性值value使用双引号。编译器显示错误

建议我是否有任何xml编码器和解码器处理这种情况？

解决方案

您可以尝试

  DocumentBuilder db = DocumentBuilderFactory.newInstance（）。newDocumentBuilder ）; 
 InputSource is = new InputSource（）; 
 is.setCharacterStream（new StringReader（< root>< nod1>< / node1>< / root>））; 
 
文档doc = db.parse（is）; 
  

参考这个 http://www.java2s.com/Code/Java/XML/ParseanXMLstringUsingDOMandaStringReader.htm

I have a case like getting an XML and convert the XML elements to document object and getting the element values and attributes which i have been created already

Here is the piece of code i have tried to convert the string to DOM document object

String xmlString = " <r><e>d</e></r>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
org.w3c.dom.Document document = builder.parse(new InputSource(new StringReader(xmlString)));    
TransformerFactory transformerFactory = TransformerFactory.newInstance(); 
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result =  new StreamResult(new StringWriter());
transformer.transform(source, result);
String str1 = result.getWriter().toString();
System.out.println(str1);

But this case is valid for only elements without attributes what can we do if the

String xmlString = "<element attribname="value" attribname1="value1"> pcdata</element>"

we are using Double quotes for the attribute values"value". The compiler is showing error

Suggest me if there any xml encoder and decoder is there to handle this scenarios ??

解决方案

you can try

DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader("<root><nod1></node1></root>"));

Document doc = db.parse(is);

refer this http://www.java2s.com/Code/Java/XML/ParseanXMLstringUsingDOMandaStringReader.htm

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