81 lines
2.3 KiB
Java
81 lines
2.3 KiB
Java
// serialization/APerson.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Use the XOM library to write and read XML
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// You must install nu.xom.Node from http://www.xom.nu
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import nu.xom.*;
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import java.io.*;
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import java.util.*;
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public class APerson {
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private String first, last;
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public APerson(String first, String last) {
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this.first = first;
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this.last = last;
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}
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// Produce an XML Element from this APerson object:
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public Element getXML() {
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Element person = new Element("person");
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Element firstName = new Element("first");
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firstName.appendChild(first);
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Element lastName = new Element("last");
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lastName.appendChild(last);
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person.appendChild(firstName);
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person.appendChild(lastName);
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return person;
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}
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// Constructor restores a APerson from an XML Element:
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public APerson(Element person) {
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first =
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person.getFirstChildElement("first").getValue();
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last =
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person.getFirstChildElement("last").getValue();
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}
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@Override
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public String toString() { return first + " " + last; }
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// Make it human-readable:
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public static void
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format(OutputStream os, Document doc) throws Exception {
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Serializer serializer =
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new Serializer(os,"ISO-8859-1");
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serializer.setIndent(4);
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serializer.setMaxLength(60);
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serializer.write(doc);
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serializer.flush();
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}
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public static void
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main(String[] args) throws Exception {
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List<APerson> people = Arrays.asList(
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new APerson("Dr. Bunsen", "Honeydew"),
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new APerson("Gonzo", "The Great"),
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new APerson("Phillip J.", "Fry"));
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System.out.println(people);
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Element root = new Element("people");
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for(APerson p : people)
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root.appendChild(p.getXML());
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Document doc = new Document(root);
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format(System.out, doc);
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format(new BufferedOutputStream(
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new FileOutputStream("People.xml")), doc);
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}
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}
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/* Output:
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[Dr. Bunsen Honeydew, Gonzo The Great, Phillip J. Fry]
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<people>
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<person>
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<first>Dr. Bunsen</first>
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<last>Honeydew</last>
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</person>
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<person>
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<first>Gonzo</first>
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<last>The Great</last>
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</person>
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<person>
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<first>Phillip J.</first>
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<last>Fry</last>
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</person>
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</people>
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*/
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