serializetest.java

解决如何把XML应用到JAVA里问题

/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j;

import junit.textui.TestRunner;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Map;

import org.dom4j.io.SAXReader;

/**
 * Tests that a dom4j document is Serializable
 * 
 * @author <a href="mailto:[e-mail]">James Strachan </a>
 * @version $Revision: 1.4 $
 */
public class SerializeTest extends AbstractTestCase {
    public static void main(String[] args) {
        TestRunner.run(SerializeTest.class);
    }

    // Test case(s)
    // -------------------------------------------------------------------------
    public void testSerializePeriodicTable() throws Exception {
        testSerialize("/xml/periodic_table.xml");
    }

    public void testSerializeMuchAdo() throws Exception {
        testSerialize("/xml/much_ado.xml");
    }

    public void testSerializeTestSchema() throws Exception {
        testSerialize("/xml/test/schema/personal.xsd");
    }

    public void testSerializeXPath() throws Exception {
        Map uris = new HashMap();
        uris.put("SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/");
        uris.put("m", "urn:xmethodsBabelFish");

        DocumentFactory factory = new DocumentFactory();
        factory.setXPathNamespaceURIs(uris);

        // now parse a document using my factory
        SAXReader reader = new SAXReader();
        reader.setDocumentFactory(factory);

        Document doc = getDocument("/xml/soap.xml", reader);

        // now lets use the prefixes
        String expr = "/SOAP-ENV:Envelope/SOAP-ENV:Body/m:BabelFish";
        Node element = doc.selectSingleNode(expr);
        assertTrue("Found valid element", element != null);

        XPath xpath = factory
                .createXPath("/SOAP-ENV:Envelope/SOAP-ENV:Body/m:BabelFish");
        element = xpath.selectSingleNode(doc);
        assertTrue("Found valid element", element != null);

        // now serialize
        ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bytesOut);
        out.writeObject(xpath);
        out.close();

        byte[] data = bytesOut.toByteArray();

        ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(
                data));
        XPath xpath2 = (XPath) in.readObject();
        in.close();

        element = xpath2.selectSingleNode(doc);
        assertTrue("Found valid element", element != null);
    }

    // Implementation methods
    // -------------------------------------------------------------------------
    protected void testSerialize(String xmlFile) throws Exception {
        Document document = getDocument(xmlFile);
        String text = document.asXML();

        ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bytesOut);
        out.writeObject(document);
        out.close();

        byte[] data = bytesOut.toByteArray();

        ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(
                data));
        Document doc2 = (Document) in.readObject();
        in.close();

        String text2 = doc2.asXML();

        assertEquals("Documents text are equal", text, text2);

        assertTrue("Read back document after serialization", (doc2 != null)
                && doc2 instanceof Document);

        assertDocumentsEqual(document, (Document) doc2);

        // now lets try add something to the document...
        doc2.getRootElement().addElement("new");
    }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
 * from this Software without prior written permission of MetaStuff, Ltd. For
 * written permission, please contact [e-mail].
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */