A method to get attribute value from provided xml node and attribute name - Java XML

Java examples for XML:XML Attribute

  1. HOME
  2. Java
  3. XML
  4. XML Attribute

Description

A method to get attribute value from provided xml node and attribute name

Demo Code


//package com.java2s;

import org.w3c.dom.Node;

import org.w3c.dom.NamedNodeMap;

public class Main {
    /**//from   w  w w.  j  a v a2 s. c  o  m
     * A method to get attribute value from provided xml node and attribute name
     * @param Node parent, a node where the attribute residing
     * @param String attr, attribute name to get
     * @return String , a value from request attribute 
     */
    static public String getAttribute(Node parent, String Attr) {
        String ret = "";

        if (!parent.hasAttributes())
            return ("");
        NamedNodeMap nmap = parent.getAttributes();

        for (int i = 0; i < nmap.getLength(); ++i) {
            Node n = nmap.item(i);
            if (n.getNodeName().trim().equals(Attr)) {
                ret = n.getNodeValue().trim();
            }
            //System.out.println("Attribute: "+n.getNodeType()+" - "+n.getNodeName()+" "+n.getNodeValue());

        }
        return (ret);
    }

    /**
     * A method to get the value of desire node from xml document
     * @param Node parent, xml's node object to get
     * @return String , value from provided node
     */
    static public String getNodeValue(Node parent) {
        String ret = "";

        Node n = parent.getFirstChild();
        while (n != null) {
            if (n.getNodeType() == Node.TEXT_NODE) {
                try {
                    ret = n.getNodeValue().trim();
                } catch (NullPointerException ex) {
                    ret = "";
                    break;
                }
            }
            n = n.getNextSibling();
        }
        return (ret);
    }
}

Related Tutorials