JDOM: Properties To XML，jdomproperties,package java

JDOM: Properties To XML，jdomproperties,package java

package javaxml3;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.Enumeration;import java.util.Properties;import org.jdom.Attribute;import org.jdom.Document;import org.jdom.Element;import org.jdom.output.Format;import org.jdom.output.XMLOutputter;public class PropsToXML {    /**     * Provide a static entry point for running.     */    public static void main(String[] args) {        if (args.length != 2) {            System.out.println("Usage: java javaxml3.PropsToXML "                    + "[properties file] [XML file for output]");            System.exit(0);        }        try {            PropsToXML propsToXML = new PropsToXML();            propsToXML.convert(args[0], args[1]);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * This will take the supplied properties file, and convert that file to an     * XML representation, which is then output to the supplied XML do*****ent     * filename.     *      * @param propertiesFilename     *            file to read in as Java properties.     * @param xmlFilename     *            file to output XML representation to.     * @throws <code>IOException</code> - when errors occur.     */    public void convert(String propertiesFilename, String xmlFilename)            throws IOException {        // Get Java Properties object        FileInputStream input = new FileInputStream(propertiesFilename);        Properties props = new Properties();        props.load(input);        // Convert to XML        convertToXML(props, xmlFilename);    }    /**     * This will handle the detail of conversion from a Java     * <code>Properties</code> object to an XML do*****ent.     *      * @param props     *            <code>Properties</code> object to use as input.     * @param xmlFilename     *            file to output XML to.     * @throws <code>IOException</code> - when errors occur.     */    private void convertToXML(Properties props, String xmlFilename)            throws IOException {        // Create a new JDOM Document with a root element "properties"        Element root = new Element("properties");        Document doc = new Document(root);        // Get the property names        Enumeration propertyNames = props.propertyNames();        while (propertyNames.hasMoreElements()) {            String propertyName = (String) propertyNames.nextElement();            String propertyValue = props.getProperty(propertyName);            createXMLRepresentation(root, propertyName, propertyValue);        }        // Output document to supplied filename        XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());        FileOutputStream output = new FileOutputStream(xmlFilename);        outputter.output(doc, output);    }    /**     * This will convert a single property and its value to an XML element and     * textual value.     *      * @param root     *            JDOM root <code>Element</code> to add children to.     * @param propertyName     *            name to base element creation on.     * @param propertyValue     *            value to use for property.     */    private void createXMLRepresentation(Element root, String propertyName,            String propertyValue) {        int split;        String name = propertyName;        Element current = root;        Element test = null;        while ((split = name.indexOf(".")) != -1) {            String subName = name.substring(0, split);            name = name.substring(split+1);            // Check for existing element             if ((test = current.getChild(subName)) == null) {                Element subElement = new Element(subName);                current.addContent(subElement);                current = subElement;            } else {                current = test;            }        }        // When out of loop, what's left is the final element's name        Element last = new Element(name);         last.setText(propertyValue);        //Attribute attribute = new Attribute("value", propertyValue);        //last.setAttribute(attribute);        current.addContent(last);    }}//该片段来自于http://byrx.net