Java DOM XML parsing :: getting element attribute value

Question

How can i extract attribute value out of the element. My xml node is writen like this < nodename attribute="value" > i need to extract it out to compare it against another string.

But since i am not calling document.getElementsByTag then i cant use .getAttribute("att.").getNodeValue to get the value.

Instead i have a NodeList and getAttribute() does not have getNodeValue.

package dev;

import java.io.*;
import java.util.*;

import javax.xml.parsers.*;
import javax.xml.xpath.*;
import org.w3c.dom.*;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;



public class Parser {


    static String def = "\"admin\",\"base\",\"Default\",\"simple\"";

    static String category = "";
    static String sku = "";
    static String has_options = "0";

    static String name = "";
    static String image = "";
    static String small_image = "";
    static String thumbnail = "";

    public static void toCSV() {
        try {
            BufferedWriter output = new BufferedWriter(new FileWriter("sim.csv", true));
            output.newLine();
            output.write(def);
            output.write(String.format(",\"%s\",\"%s\",\"%s\"", category, sku, has_options));
            output.write(String.format(",\"%s\",\"%s\",\"%s\",\"%s\"", name, image, small_image, thumbnail));
            output.flush();
            output.close();
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        toCSV();
        try {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            factory.setNamespaceAware(true);
            DocumentBuilder builder = factory.newDocumentBuilder();

            Document document = builder.parse(new File("input.asp.xml"));
            document.getDocumentElement().normalize();

            NodeList list = document.getElementsByTagName("izdelek");
            for(int i = 0; i < 1; i++) {
                NodeList child = list.item(i).getChildNodes();
                for(int j = 0; j < child.getLength(); j++) {
                    if(child.item(j).getNodeName().equals("kategorija")) {
                        category = child.item(j).getTextContent().trim();
                    } else if(child.item(j).getNodeName().equals("ean")) {
                        sku = child.item(j).getTextContent().trim();
                    } else if(child.item(j).getNodeName().equals("izdelekIme")) {
                        name = child.item(j).getTextContent().trim();
                    } else if(child.item(j).getNodeName().equals("slikaMala")) {
                        small_image = child.item(j).getTextContent().trim();
                        thumbnail   = child.item(j).getTextContent().trim();
                    } else if(child.item(j).getNodeName().equals("slikaVelika")) {
                        image = child.item(j).getTextContent().trim();
                    } else if(child.item(j).getNodeName().equals("dodatneLastnosti")) {
                        NodeList subs = child.item(j).getChildNodes();
                        // ^ need to parse these nodes they are written as <nodename attribute="value">
                        // i need to print out the value
                    } 
                }
                //toCSV();
            }

        } catch(Exception io) {
            io.printStackTrace();
        } 
    }


}

LarsH · Accepted Answer · 2014-09-03 18:20:35Z

5

Solved:

XML input:

< nodename attribute="value" > Something </ nodename>

Java code:

NodesList subs = child.item(j).getChildNodes();

System.out.println(subs.item(0).getTextContent()); // >> Something

Element element = (Element) document.adoptNode(subs.item(0));
System.out.println(element.getAttribute("attribute"));  // >> value

edited Sep 3, 2014 at 18:20

LarsH

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answered Mar 31, 2012 at 1:47

Sterling Duchess

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1 Comment

kdgregory Over a year ago

I suggest that you look into XPath.

Arosha Perera · Accepted Answer · 2015-03-12 08:53:19Z

0

You also can use this,

child.item(j).getFirstChild().getNodeValue();

answered Mar 12, 2015 at 8:53

Arosha Perera

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