How can I add standard header statements to XML documents that I generate using Java Xerces?
Something like this:?
<?xml version="1.0" encoding="utf-8"?>
<!--My Comment for this XML File -->
<?TSMKey applanguage="EN" appversion="4.3.0" dtdversion="1.6.2"?>
<!DOCTYPE KEYS SYSTEM "C:\TSM\System\DTD\TSMLte.dtd">
I'm getting the <?xml> tag by default now, but how can I add the other header elements?
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("TOP");
doc.appendChild(rootElement);
DOMSource domSource = new DOMSource(doc);
The creation of the processing instruction is IMHO not well supported, but you can do the following:
Comment comment = document.createComment("My Comment for this XML File");
document.appendChild(comment);
ProcessingInstruction processingInstruction = document.createProcessingInstruction("TSMKey", "applanguage=\"EN\" appversion=\"4.3.0\" dtdversion=\"1.6.2\"");
document.appendChild(processingInstruction);
Element rootElement = document.createElement("TOP");
document.appendChild(rootElement);
Related
I searched in SO but I did not found nothing that solves my problem. I hope some one can help me.
I am building a XML file and I need to remove the Namespace xmlns.
That is my code
Document xmlDocument = new Document();
Namespace ns1 = Namespace.getNamespace("urn:iso:std:iso:20022:tech:xsd:pain.001.001.03");
Namespace ns2 = Namespace.getNamespace("xsi", "http://www.w3.org/2001/XMLSchema-instance");
Element root = new Element("Document", ns1);
root.addNamespaceDeclaration(ns2);
xmlDocument.setRootElement(root);
Element CstmrCdtTrfInitn = new Element("CstmrCdtTrfInitn");
root.addContent(CstmrCdtTrfInitn);
PrintDocumentHandler pdh = new PrintDocumentHandler();
pdh.setXmlDocument(xmlDocument);
request.getSession(false).setAttribute("pdh", pdh);
ByteArrayOutputStream sos = new ByteArrayOutputStream();
XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());
Format format = outputter.getFormat();
format.setEncoding(SOPConstants.ENCODING_SCHEMA);
outputter.setFormat(format);
outputter.output(root, sos);
sos.flush();
return sos;
And this is the created XML-File
<?xml version="1.0" encoding="UTF-8"?>
<Document xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:iso:std:iso:20022:tech:xsd:pain.001.001.03">
<CstmrCdtTrfInitn xmlns=""/>
</Document>
I have to remove the namespace xmlns from the tag CstmrCdtTrfInitn.
Many thanks in advance.
Namespace declaration without prefix (xmlns="...") is known as default namespace. Notice that, unlike prefixed namespace, descendant elements without prefix inherit ancestor's default namespace implicitly. So in the XML below, <CstmrCdtTrfInitn> is considered in the namespace urn:iso:std:iso:20022:tech:xsd:pain.001.001.03 :
<Document xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:iso:std:iso:20022:tech:xsd:pain.001.001.03">
<CstmrCdtTrfInitn/>
</Document>
If this is the wanted result, instead of trying to remove xmlns="" later, you should try to create CstmrCdtTrfInitn using the same namespace as Document in the first place :
Element CstmrCdtTrfInitn = new Element("CstmrCdtTrfInitn", ns1);
I did some code for you, I dont know what package You are using... If You only want to remove the xmlns attribute from the CstmrCdtTrfInitn tag try with this code as other method to generate XML (I just modified this):
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
// root elements
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("Document");
rootElement.setAttribute("xmlns", "urn:iso:std:iso:20022:tech:xsd:pain.001.001.03");
rootElement.setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
doc.appendChild(rootElement);
// staff elements
Element CstmrCdtTrfInitn = doc.createElement("CstmrCdtTrfInitn");
rootElement.appendChild(CstmrCdtTrfInitn);
// write the content into xml file
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
// Output to console for testing
StreamResult result = new StreamResult(System.out);
transformer.transform(source, result);
} catch (ParserConfigurationException pce) {
pce.printStackTrace();
} catch (TransformerException tfe) {
tfe.printStackTrace();
}
I am trying to add a prefix to a tag to represent a particular namespace - as can be seen below
String envelopePrefix = "omgEnv";
String businessPrefix = "omgBS";
String namespaceURI = "http://www.w3.org/2000/xmlns/";
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElement("OmgeoMessageContainer");
rootElement.setAttributeNS(namespaceURI, "xmlns:" + envelopePrefix, "http://www.omgeo.com/schema/v1.0/envelope");
rootElement.setAttributeNS(namespaceURI, "xmlns:" + businessPrefix, "http://www.omgeo.com/schema/v1.0/BusinessServices");
doc.appendChild(rootElement);
Element messageParties = doc.createElementNS(namespaceURI, envelopePrefix + ":MessageParties");
rootElement.appendChild(messageParties);
Unfortunately my messageParties element is failing with the following error -
org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create
or change an object in a way which is incorrect with regard to
namespaces.
How are you supposed to prefix a tag with the correct namespace definition? Event the setPrefix method throws the same error.
Thanks
I do not think you can decide the prefix for a namespace element while generating XML. I did not see any such option in the JavaDocs. To create element with namespace this should be the modification.
String namespaceURI = "http://www.w3.org/2000/xmlns/";
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();
Element rootElement = doc.createElementNS(namespaceURI, "OmgeoMessageContainer");
doc.appendChild(rootElement);
Element messageParties = doc.createElementNS(namespaceURI, "MessageParties");
rootElement.appendChild(messageParties);
This will generate the XML with auto decided prefix for the namespaces.
I need to set prefix of the element in my xml. I need to print the xml in the format below:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<cars xmlns:dcterms="http://purl.org/dc/terms/" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<supercars company="Ferrari">
<dcterms:carname type="formula one">Ferrari 101</dcterms:carname>
<msxsl:carname type="sports">Ferrari 202</msxsl:carname>
</supercars>
</cars>
However, I am not able to add the prefix in my XML. What I am getting is this.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<cars xmlns:dcterms="http://purl.org/dc/terms/" xmlns:msxsl="urn:schemas-microsoft-com:xslt">
<supercars company="Ferrari">
<carname type="formula one">Ferrari 101</carname>
<carname type="sports">Ferrari 202</carname>
</supercars>
</cars>
Following is my Java Code:
public static void main(String args[]) {
try {
DocumentBuilderFactory dbFactory =
DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder =
dbFactory.newDocumentBuilder();
Document doc = dBuilder.newDocument();
// root element
Element rootElement = doc.createElement("cars");
rootElement.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:dcterms", "http://purl.org/dc/terms/");
rootElement.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:msxsl", "urn:schemas-microsoft-com:xslt");
doc.appendChild(rootElement);
// supercars element
Element supercar = doc.createElement("supercars");
rootElement.appendChild(supercar);
// setting attribute to element
Attr attr = doc.createAttribute("company");
attr.setValue("Ferrari");
// supercar.setAttributeNodeNS(attr);
supercar.setAttributeNode(attr);
// carname element
Element carname = doc.createElement("carname");
Attr attrType = doc.createAttribute("type");
attrType.setValue("formula one");
carname.setAttributeNode(attrType);
carname.appendChild(
doc.createTextNode("Ferrari 101"));
supercar.appendChild(carname);
Element carname1 = doc.createElement("carname");
Attr attrType1 = doc.createAttribute("type");
attrType1.setValue("sports");
carname1.setAttributeNode(attrType1);
carname1.appendChild(
doc.createTextNode("Ferrari 202"));
supercar.appendChild(carname1);
// write the content into xml file
TransformerFactory transformerFactory =
TransformerFactory.newInstance();
Transformer transformer =
transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
DOMSource source = new DOMSource(doc);
StreamResult result =
new StreamResult(new File("cars.xml"));
transformer.transform(source, result);
// Output to console for testing
StreamResult consoleResult =
new StreamResult(System.out);
transformer.transform(source, consoleResult);
} catch (Exception e) {
e.printStackTrace();
}
}
}
And I checked this link Adding namespace prefix XML String using XML DOM. However, this only talks about the SAX way of doing thing. I need to do this in DOM.
I tried setPrefix method and it is throwing me NAMESPACE_ERR
First of all, make sure you set dbFactory.setNamespaceAware(true);, if you want to work with a DOM supporting namespaces.
Then use createElementNS, e.g. Element carname = doc.createElementNS("http://purl.org/dc/terms/", "dcterms:carname");, to create elements in a namespace. Use the same approach for the element in the other namespace.
I have the following XML, I would like to add another "product" to the xml.
<?xml version="1.0" encoding="ISO-8859-1"?>
<products>
<product>
<name>Computer</name>
<code>PC1003</code>
<description>Basic Computer</description>
<price>399.99</price>
</product>
<product>
<name>Monitor</name>
<code>MN1003</code>
<description>LCD Monitor</description>
<price>99.99</price>
</product>
<product>
<name>Printer</name>
<code>PR1003x</code>
<description>Inkjet Printer</description>
<price>54.23</price>
</product>
</products>
This is the code I have so far:
// Variables
File file = new File("db_products.xml"); // set xml to parse
// Create builders
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(file); // load xml file
doc.getDocumentElement().normalize();
doc.createElement("product");
I don't really care where the new "product" section is added. I just can't seem to grasp what is the difference between a node and an element. I'm assuming the correct way to add a new "product" section would be to add a child to "products" and then add children (name,code,etc.) to "product".
Any help on how to easily do this, or a link to a simple tutorial would be appreciated.
What you need to do is retrieve the products element first and then call the appendChild on that element. Something like this:
Element productElement = doc.createElement("product");
productElement.setAttribute("name", "value");
//Other name value pairs...
//Append the products element to the right spot.
Element productsElement = (Element) doc.getElementByTagName("products").item(0);
productsElement.appendChild(productElement);
//Convert doc to xml string
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);
String xmlAsString = writer.toString();
Im am currently creating an xml using Java and then I transform it into a String. The xml declaration is as follows:
DocumentBuilderFactory dbfac = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = dbfac.newDocumentBuilder();
Document doc = docBuilder.newDocument();
doc.setXmlVersion("1.0");
For transforming the document into String, I include the following declaration:
TransformerFactory transfac = TransformerFactory.newInstance();
Transformer trans = transfac.newTransformer();
trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
trans.setOutputProperty(OutputKeys.VERSION, "1.0");
trans.setOutputProperty(OutputKeys.ENCODING,"UTF-8");
trans.setOutputProperty(OutputKeys.INDENT, "yes");
And then I do the transformation:
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
DOMSource source = new DOMSource(doc);
trans.transform(source, result);
String xmlString = sw.toString();
The problem is that in the XML Declaration attributes, the standalone attribute is included and I don't want that, but I want the version and encoding attributes to appear:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
Is there any property where that could be specified?
From what I've read you can do this by calling the below method on Document before creating the DOMSource:
doc.setXmlStandalone(true); //before creating the DOMSource
If you set it false you cannot control it to appear or not. So setXmlStandalone(true) on Document. In transformer if you want an output use OutputKeys with whatever "yes" or "no" you need. If you setXmlStandalone(false) on Document your output will be always standalone="no" no matter what you set (if you set) in Transformer.
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