如何将org.w3c.dom.Document对象转换为string？

我想将一个org.w3c.dom.Document对象转换为一个String。 我正在使用Java 6，并开放使用任何完全免费的技术。 我尝试从这个线程的解决scheme – 是否有一个更优雅的方式来将XML文档转换为Java中的string比这个代码？ ，他们在哪里

DOMImplementationLS domImplementation = (DOMImplementationLS) doc.getImplementation(); LSSerializer lsSerializer = domImplementation.createLSSerializer(); String html = lsSerializer.writeToString(doc); 

但遭到以下可怕的例外…

 org.w3c.dom.DOMException: DOM method not supported at org.w3c.tidy.DOMDocumentImpl.getImplementation(DOMDocumentImpl.java:129) at com.myco.myproj.cleaners.JTidyCleaner.outputDocAsString(JTidyCleaner.java:74) at com.myco.myproj.cleaners.JTidyCleaner.parse(JTidyCleaner.java:63) at com.myco.myproj.util.NetUtilities.getUrlAsDocument(NetUtilities.java:51) at com.myco.myproj.parsers.AbstractHTMLParser.getEventFromElement(AbstractHTMLParser.java:131) at com.myco.myproj.parsers.AbstractHTMLParser.parsePage(AbstractHTMLParser.java:100) at com.myco.myproj.parsers.AbstractHTMLParser.getEvents(AbstractHTMLParser.java:63) at com.myco.myproj.domain.EventFeed.refresh(EventFeed.java:87) at com.myco.myproj.domain.EventFeed.getEvents(EventFeed.java:72) at com.myco.myproj.parsers.impl.ChicagoCouncilGlobalAffairsParserTest.testParser(ChicagoCouncilGlobalAffairsParserTest.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) 

Answer 1

如果你可以做转换，你可以试试这个。

 DocumentBuilderFactory domFact = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = domFact.newDocumentBuilder(); Document doc = builder.parse(st); DOMSource domSource = new DOMSource(doc); StringWriter writer = new StringWriter(); StreamResult result = new StreamResult(writer); TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); transformer.transform(domSource, result); System.out.println("XML IN String format is: \n" + writer.toString()); 

Answer 2

使用一些像

 import java.io.*; import javax.xml.transform.*; import javax.xml.transform.dom.*; import javax.xml.transform.stream.*; //method to convert Document to String public String getStringFromDocument(Document doc) { try { DOMSource domSource = new DOMSource(doc); StringWriter writer = new StringWriter(); StreamResult result = new StreamResult(writer); TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); transformer.transform(domSource, result); return writer.toString(); } catch(TransformerException ex) { ex.printStackTrace(); return null; } } 

Answer 3

一个基于Zaz的答案的Scala版本。

  case class DocumentEx(document: Document) { def toXmlString(pretty: Boolean = false):Try[String] = { getStringFromDocument(document, pretty) } } implicit def documentToDocumentEx(document: Document):DocumentEx = { DocumentEx(document) } def getStringFromDocument(doc: Document, pretty:Boolean): Try[String] = { try { val domSource= new DOMSource(doc) val writer = new StringWriter() val result = new StreamResult(writer) val tf = TransformerFactory.newInstance() val transformer = tf.newTransformer() if (pretty) transformer.setOutputProperty(OutputKeys.INDENT, "yes") transformer.transform(domSource, result) Success(writer.toString); } catch { case ex: TransformerException => Failure(ex) } } 

有了这个，你可以做doc.toXmlString()或者调用getStringFromDocument(doc)函数。