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I want append data at the end of text file .xml . I use textfield to SetTextContent . Now I want add next tag on file xml

private void bt_create_xml(ActionEvent e) {
try {
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
// root elements
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("University");
doc.appendChild(rootElement);
Element staff = doc.createElement("student");
// add staff to root
rootElement.appendChild(staff);
// add xml attribute
staff.setAttribute("rollno", tf_input_id.getText());
Element name = doc.createElement("fullname");
name.setTextContent(tf_input_fullname.getText());
staff.appendChild(name);
Element code = doc.createElement("code");
code.setTextContent(tf_input_code.getText());
staff.appendChild(code);
Element birthday = doc.createElement("birthday");
birthday.setTextContent(tf_input_birth.getText());
staff.appendChild(birthday);
Element department = doc.createElement("department");
department.setTextContent(tf_input_depart.getText());
staff.appendChild(department);
Element address = doc.createElement("address");
address.setTextContent(tf_input_add.getText());
staff.appendChild(address);
try{
writeXml(doc, System.out);
FileOutputStream out=new FileOutputStream("D:\\JAVA\\XML-CUOIKY\\XML.xml");
writeXml(doc,out);
}catch (Exception exx){
exx.printStackTrace();
}
} catch (ParserConfigurationException ex) {
ex.printStackTrace();
}
}
private static void writeXml(Document doc,
OutputStream output)
throws TransformerException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
// pretty print
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(output);
transformer.transform(source, result);
}
"I want append data at the end of text file .xml . I use textfield to SetTextContent . Now I want add next tag on file xml"

Save modified xml into internal storage Android

I added node in a existing xml file located in /data/data.my.package.app/files/file.xml and I just want to save the file but I didn't find out.
I tried this function seen in an other post :
private void save(Document newDoc) throws Exception{
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
StreamResult result = new StreamResult(new File(context.getFilesDir().getAbsolutePath() + "/file.xml"));
Source source = new DOMSource(newDoc);
transformer.transform(source, result);
}
But I get an null pointer exception on tranformer.transform() ... This is how I initialise my Document file.
FileInputStream is = new FileInputStream(context.getFilesDir().getAbsolutePath() + "/file.xml");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(is);
Thanks a lot for the help
A.D

The file cannot be new.
Must be already present:
StreamResult result =
new StreamResult(new File(context.getFilesDir().getAbsolutePath() + "/file.xml"));
for me this work:
//save the doc as string in a text file with the same name (extension .xml)
save(this, body, dir, FILENAME_XML);
//apply the transformer
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory_p.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(
new File(dir+File.separator+FILENAME_XML));
transformer.transform(source, result);
the file xml is produced.

Saving a XML Document in another xml file

what's wrong? this code dont save and dont show error
this code :
read file menuAdm.xml
treat that Document
save treated content in another xml (menuAdm2.xml)
DocumentBuilder dBuilder = null;
try {
dBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = dBuilder.parse(new File("/seguranca/menuAdm.xml"));
System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
Element root = doc.getDocumentElement();
// do treatment of doc (menuAdm.xml)
// save into another file (menuAdm2.xml)
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("/seguranca/menuAdm2.xml") );
transformer.transform(source, result);
} catch (Exception e) {
System.out.println("Error to save file " + e.getMessage());
}

append node to an xml in Java

I can't append correctly some info to my xml file. That's the scrivi function
public String scrivi (Document doc, File dest)
{
try
{
DOMSource sorgente = new DOMSource (doc);
StreamResult sr = new StreamResult (dest);
TransformerFactory tf =
TransformerFactory.newInstance();
Transformer transf = tf.newTransformer();
transf.transform (sorgente, sr);
return "Tutto ok";
}
catch (TransformerConfigurationException tce)
{
System.out.println(tce.getMessage());
return "<h1> Config </h1>";
}
catch (TransformerException te)
{
System.out.println(te.getMessage());
return "<h1> Transformer Errore </h1>";
}
}
and tath is my code:
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.parse(getClass().getResourceAsStream("/azioni.xml"));
Element root = document.getDocumentElement();
Element new_azione = document.createElement("azione");
Element id = document.createElement("id_azione");
id.setTextContent(id_azione);
Element nome = document.createElement("nome_azione");
nome.setTextContent(nome_azione);
Element prezzo_a = document.createElement("prezzo");
prezzo_a.setTextContent(prezzo);
new_azione.appendChild(id);
new_azione.appendChild(nome);
new_azione.appendChild(prezzo_a);
document.getDocumentElement().appendChild(new_azione);
String nomexmlOut="/azioni.xml";
File filedest = new File(nomexmlOut);
out.println(this.scrivi(document, filedest));
}
I get the error Transformer Errore ... how can I solve? what's Wrong?
* UPDATE *
Error Info
java.io.FileNotFoundException: /azioni.xml (Permission denied)

Hard to tell without actual exception trace or message, but my guess is that your problem is the ouput stream.
File("/azioni.xml");
is not the same as
getClass().getResourceAsStream("/azioni.xml")
Try with directing the output to system out and see if it works. i.e. declare scrivi
public String scrivi (Document doc, OutputStream out)
and call it with
scrivi(document, System.out);
UPDATE:
To write to the same file location, try something like this (untested)
File out = new File(getClasss().getResource("...").getFile());
and make sure that you close the input stream that you originally read from, before trying to write.

Bad Characters when parsing GML in Java

I'm using the org.w3c.dom package to parse the gml schemas (http://schemas.opengis.net/gml/3.1.0/base/).
When I parse the gmlBase.xsd schema and then save it back out, the quote characters around GeometryCollections in the BagType complex type come out converted to bad characters (See code below).
Is there something wrong with how I'm parsing or saving the xml, or is there something in the schema that is off?
Thanks,
Curtis
public static void main(String[] args) throws IOException
{
File schemaFile = File.createTempFile("gml_", ".xsd");
FileUtils.writeStringToFile(schemaFile, getSchema(new URL("http://schemas.opengis.net/gml/3.1.0/base/gmlBase.xsd")));
System.out.println("wrote file: " + schemaFile.getAbsolutePath());
}
public static String getSchema(URL schemaURL)
{
try
{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(IOUtils.toString(schemaURL.openStream()))));
Element rootElem = doc.getDocumentElement();
rootElem.normalize();
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(doc);
ByteArrayOutputStream xmlOutStream = new ByteArrayOutputStream();
StreamResult result = new StreamResult(xmlOutStream);
transformer.transform(source, result);
return xmlOutStream.toString();
}
catch (Exception e)
{
e.printStackTrace();
}
return "";
}

I'm suspicious of this line:
Document doc = db.parse(new InputSource(
new StringReader(IOUtils.toString(schemaURL.openStream()))));
I don't know what IOUtils.toString does here but presumably it's assuming a particular encoding, without taking account of the XML declaration.
Why not just use:
Document doc = db.parse(schemaURL.openStream());
Likewise your FileUtils.writeStringToFile doesn't appear to specify a character encoding... which encoding does it use, and why encoding is in the StreamResult?