XML parsing using Java with getting element values and attribute values
15,229
Solution 1
Since you are using org.w3c.dom you might use the following:
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(xmlFile));
Document doc = builder.parse(is);
NodeList nodeList = doc.getElementsByTagName("Employee");
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
if (node.hasAttributes()) {
Attr attr = (Attr) node.getAttributes().getNamedItem("type");
if (attr != null) {
String attribute= attr.getValue();
System.out.println("attribute: " + attribute);
}
}
}
Solution 2
What you are using is an XSLT transformation which by default transforms to element texts.
Using the same technique, one needs an own "stylesheet":
InputStream xsltIn = StoreData.class.getResourceAsStream("/employees.xslt");
StreamSource xslt = new StreamSource(xsltIn);
///StreamSource xslt = new StreamSource(".../employees.xslt");
Transformer tFormer = TransformerFactory.newInstance().newTransformer(xslt);
Above I used a resource, not a file system File, so it is packed with the application.
employees.xslt:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/Personnel">
Personnel:
<xsl:apply-templates select="./*"/>
End personnel.
</xsl:template>
<xsl:template match="Employee">
* Employee:<xsl:apply-templates select="./@*|./*"/>
</xsl:template>
<xsl:template match="Name|Id|Age|@type">
- <xsl:value-of select="name()"/>: <xsl:value-of select="."/>
</xsl:template>
</xsl:stylesheet>
Which would produce:
Personnel:
* Employee:
- type: permanent
- Name: Seagull
- Id: 3674
- Age: 34
* Employee:
- type: contract
- Name: Robin
- Id: 3675
- Age: 25
* Employee:
- type: permanent
- Name: Crow
- Id: 3676
- Age: 28
End personnel.
Author by
user1036204
Updated on June 05, 2022Comments
-
user1036204 almost 2 years
i have an XML file and the elements also have attributes. I have a simple java file which is parsing and printing values of elements in a text file but not element attribute values. Please can you help in getting the attributes values also to be printed. I am pasting the code below: --------employees.xml file-----------
<?xml version="1.0" encoding="UTF-8"?> <Personnel> <Employee type="permanent"> <Name>Seagull</Name> <Id>3674</Id> <Age>34</Age> </Employee> <Employee type="contract"> <Name>Robin</Name> <Id>3675</Id> <Age>25</Age> </Employee> <Employee type="permanent"> <Name>Crow</Name> <Id>3676</Id> <Age>28</Age> </Employee> </Personnel>
----------------------------StoreData.java-----------------------------------------
import java.io.*; import org.w3c.dom.*; import org.xml.sax.*; import javax.xml.parsers.*; import javax.xml.transform.*; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; public class StoreData{ static public void main(String[] arg) { try{ BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter XML file name: "); String xmlFile = bf.readLine(); File file = new File(xmlFile); if (file.exists()){ DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document doc = builder.parse(xmlFile); //Create transformer Transformer tFormer = TransformerFactory.newInstance().newTransformer(); //Output Types (text/xml/html) tFormer.setOutputProperty(OutputKeys.METHOD, "text"); // Write the document to a file Source source = new DOMSource(doc); // Create File to view your xml data as (vk.txt/vk.doc/vk.xls/vk.shtml/vk.html) Result result = new StreamResult(new File("file.txt")); tFormer.transform(source, result); System.out.println("File creation successfully!"); } else{ System.out.println("File not found!"); } } catch (Exception e){ System.err.println(e); System.exit(0); } } }