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();
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 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.
So I have this wich should put into an xml file a movie.
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.parse("D:\\College\\Java Eclipse\\tema5\\Movies\\Movies.xml");
try {
Element rootElement = doc.createElement("Movie");
doc.appendChild(rootElement);
// firstname elements
Element id = doc.createElement("Id");
id.appendChild(doc.createTextNode("3"));
rootElement.appendChild(id);
// lastname elements
Element name = doc.createElement("Name");
name.appendChild(doc.createTextNode("Movie 3"));
rootElement.appendChild(name);
// nickname elements
Element category = doc.createElement("Category");
category.appendChild(doc.createTextNode("Animation"));
rootElement.appendChild(category);
// salary elements
Element releasedate = doc.createElement("ReleaseDate");
releasedate.appendChild(doc.createTextNode("10-Jun-2012"));
rootElement.appendChild(releasedate);
Element rating = doc.createElement("Rating");
rating.appendChild(doc.createTextNode("10"));
rootElement.appendChild(rating);
// write the content into xml file
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("D:\\College\\Java Eclipse\\tema5\\Movies\\Movies.xml"));
// Output to console for testing
// StreamResult result = new StreamResult(System.out);
transformer.transform(source, result);
} catch (TransformerException tfe) {
tfe.printStackTrace();
}
The problem is that in my xml file I already have two movies, when it tries to put the third one it succeeds but at the forth one it dies. I think it's because of the nodes and I want to know how to reposition the last to the end of the file so I can place more movies. This is the xml doc after the first insertion.
<?xml version="1.0" encoding="UTF-8" standalone="no"?><Movie>
<Movie>
<Id>1</Id>
<Name>Movie 1</Name>
<Category>Action</Category>
<ReleaseDate>22-JUN-2010</ReleaseDate>
<Rating>9</Rating>
</Movie>
<Movie>
<Id>2</Id>
<Name>Movie 2</Name>
<Category>Comedy</Category>
<ReleaseDate>2-JUN-2011</ReleaseDate>
<Rating>8</Rating>
</Movie>
</Movie>
<Movie>
<Id>3</Id>
<Name>Movie 3</Name>
<Category>Animation</Category>
<ReleaseDate>10-Jun-2012</ReleaseDate>
<Rating>10</Rating>
</Movie>
Element docRoot = doc.getDocumentElement();
Element rootElement = doc.createElement("Movie");
docRoot.appendChild(rootElement);
I would suggest renaming your rootElement variable to newMovie as it is missleading. You can only have one root element in xml, and you get it by doc.getDocumentElement()
Im trying to create XML document with DOM APi's and when i use the following code I got the
expect result
Element rootTreeNode = document.createElementNS("http://schemas.microsoft.com/ado/2007","ex" + ":Ex")
this is the output with tags in output console
ex:Ex Version="1.0" xmlns:ex="http://schemas.microsoft.com/ado/2007"/
Now I want to add to this element the following
**xmlns:gp**="http://www.pst.com/Protocols/Data/Generic"
and I dont succeed with the xmlns:gp i have tried to use
the like the following
rootTreeNode.setAttributeNS("xmlns" ,"gp","http://www.pst.com/Protocols/Data/Generic")
and i have got it like the folloing
**xmlns:ns0="xmlns"** **ns0:gp**="http://www.pst.com/Protocols/Data/Generic"
and if put null in the first parameter
rootTreeNode.setAttributeNS(null ,"gp","http://www.pst.com/Protocols/Data/Generic")
I get just gp with the URL without the xmlns .
what am i doing wrong here ?
Thanks!!!
Complete test:
DocumentBuilderFactory dbfac = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = dbfac.newDocumentBuilder();
Document doc = docBuilder.newDocument();
Element root = doc.createElementNS("http://schemas.microsoft.com/ado/2007","ex" + ":Ex");
root.setAttributeNS("http://www.w3.org/2000/xmlns/" ,"xmlns:gp","http://www.pst.com/Protocols/Data/Generic");
doc.appendChild(root);
TransformerFactory transfac = TransformerFactory.newInstance();
Transformer trans = transfac.newTransformer();
trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
trans.setOutputProperty(OutputKeys.INDENT, "yes");
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
DOMSource source = new DOMSource(doc);
trans.transform(source, result);
String xmlString = sw.toString();
System.out.println("Xml:\n\n" + xmlString);
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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