Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class Main {
    public static Map<String, String> readXmlToMap(String filename, String xpathExp, String arrtibute)
            throws ParserConfigurationException, IOException, SAXException, XPathExpressionException {
        //to-do something
        Map<String, String> dataMap = new HashMap<String, String>();

        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        dbf.setIgnoringElementContentWhitespace(true);

        DocumentBuilder db = dbf.newDocumentBuilder();

        File file = new File(filename);
        if (file.exists()) {
            Document doc = db.parse(file);
            XPathFactory xpathFactory = XPathFactory.newInstance();
            XPath xpath = xpathFactory.newXPath();

            NodeList varList = (NodeList) xpath.evaluate(xpathExp, doc, XPathConstants.NODESET);

            for (int i = 0; i < varList.getLength(); i++) {
                dataMap.put(varList.item(i).getAttributes().getNamedItem(arrtibute).getNodeValue(),
                        varList.item(i).getTextContent());
            }
        }
        return dataMap;
    }
}