用xslt转换xml后的Java getNode

Question

I need to ask how i can get nodes of xml atfer transforming xml file with xslt using java transform factory.

when do transform without java my document looks like i need. But when i transform using java it looks like xslt don't change anything just remove nodes and return everthing in plain text.

    DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbFactory.newDocumentBuilder();
    db.setEntityResolver(new EntityResolver() {

        @Override
        public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
            return null;
        }
    });

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    TransformerFactory tFactory = TransformerFactory.newInstance();
    Transformer transformer = tFactory.newTransformer(new StreamSource("pathtoxsl"));

    transformer.transform(new DOMSource(doc.getDocumentElement()), new StreamResult(outputStream));
    System.out.println(outputStream.toString());

Can anyone help my?

/ * new problem * * / i CHANGE to DOMResult but now i get null pointer exception. in the following line: transformer.transform(new DOMSource(doc.getDocumentElement()), outputStream);

I suppose in can be problem with xslt

java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1223) at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1060) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1268) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1251) at com.atea.biztalk.tests.suppliers.invoiceimport.request.Requests.transformXML(Requests.java:166) at com.atea.biztalk.tests.suppliers.invoiceimport.request.Soap_SerialNumber_ACME.Run_Soap_SerialNumber_ACME(Soap_SerialNumber_ACME.java:35) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.ru nners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) 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)

if run succes i get in console this:

Line #0; Column #0; org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted.

and get just xml version and encoding

Answer 1

Don't use a StreamResult . Use a DOMResult instead, which will save the transformation output into a new DOM tree in memory. DOMResult#getNode() will return the document node of the transformed output.

Answer 2

Change the first parameter in transform method to StreamSource.

transformer.transform(new StreamSource(new java.io.File("path_to_xml")), new StreamResult(outputStream));

I used your code snippet except for the above line for the transform and it works fine (with my sample xml and xsl files).