使用XML DOM添加名称空间前缀XML String

我想使用XML DOM为XML String中的所有元素添加名称空间前缀。 例如我的字符串以这种方式出现：

 test string   test string test string   test string test string   test string test string    

我想要一个输出XML：

  test string   test string test string   test string test string   test string test string    

如何在Java中实现最佳效果？

Answer 1

我们可以用Transformer + SAX来做到这一点。 尝试这个：

  import java.io.StringWriter; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.sax.SAXSource; import javax.xml.transform.stream.StreamResult; import org.xml.sax.Attributes; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import org.xml.sax.XMLReader; import org.xml.sax.helpers.XMLFilterImpl; import org.xml.sax.helpers.XMLReaderFactory; public class Test { public static void main(String args[]) throws Exception { XMLReader xmlReader = new XMLFilterImpl(XMLReaderFactory.createXMLReader()) { String namespace = "http://www.tibco.com/schemas/BWStatistics-hawk/Schema.xsd2"; String pref = "ns0:"; @Override public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { super.startElement(namespace, localName, pref + qName, atts); } @Override public void endElement(String uri, String localName, String qName) throws SAXException { super.endElement(namespace, localName, pref + qName); } }; TransformerFactory tf = TransformerFactory.newInstance(); Transformer t = tf.newTransformer(); StringWriter s = new StringWriter(); t.transform(new SAXSource(xmlReader, new InputSource("test.xml")), new StreamResult(s)); System.out.println(s); } }