testserialization.java

一个java操作xml的完整示例

package org.jdom.test.cases;

/*-- 

 Copyright (C) 2007 Jason Hunter.
 All rights reserved.
 
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	notice, this list of conditions, and the following disclaimer.
 
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	notice, this list of conditions, and the disclaimer that follows 
	these conditions in the documentation and/or other materials 
	provided with the distribution.

 3. The name "JDOM" must not be used to endorse or promote products
	derived from this software without prior written permission.  For
	written permission, please contact [e-mail].
 
 4. Products derived from this software may not be called "JDOM", nor
	may "JDOM" appear in their name, without prior written permission
	from the JDOM Project Management ([e-mail]).
 
 In addition, we request (but do not require) that you include in the 
 end-user documentation provided with the redistribution and/or in the 
 software itself an acknowledgement equivalent to the following:
	 "This product includes software developed by the
	  JDOM Project (http://www.jdom.org/)."
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 available at http://www.jdom.org/images/logos.

 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 DISCLAIMED.  IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
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 This software consists of voluntary contributions made by many 
 individuals on behalf of the JDOM Project and was originally 
 created by Brett McLaughlin <[e-mail]> and 
 Jason Hunter <[e-mail]>.  For more information on the 
 JDOM Project, please see <http://www.jdom.org/>.
 
 */

/**
 * Please put a description of your test here.
 * 
 * @author unascribed
 * @version 0.1
 */
import java.io.*;
import junit.framework.*;

import org.jdom.*;
import org.jdom.filter.ElementFilter;

public final class TestSerialization
extends junit.framework.TestCase
{
    /**
     *  Construct a new instance. 
     */
    public TestSerialization(String name) {
        super(name);
    }
    /**
     * The main method runs all the tests in the text ui
     */
    public static void main(String args[]) {
        junit.textui.TestRunner.run(suite());
    }
    /**
     * This method is called before a test is executed.
     */
    public void setUp() {
        // your code goes here.
    }
    /**
     * The suite method runs all the tests
     */
	public static Test suite () {
        TestSuite suite = new TestSuite(TestSerialization.class);
        return suite;
    }
    /**
     * This method is called after a test is executed.
     */
    public void tearDown() {
        // your code goes here.
    }

    private ByteArrayOutputStream serialize(Object o) {
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ObjectOutputStream oout = new ObjectOutputStream(baos);
            oout.writeObject(o);
            return baos;
        }
        catch (Exception e) {
            fail("Exception on serializing: " + e);
            return null;
        }
    }

    private Object deserialize(ByteArrayOutputStream baos) {
        try {
            ObjectInputStream oin = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
            return oin.readObject();
        }
        catch (Exception e) {
            fail("Exception on deserializing: " + e);
            return null;
        }
    }

    private void outAndBack(ElementFilter filter) {
        ByteArrayOutputStream bytes = serialize(filter);
        ElementFilter filter2 = (ElementFilter) deserialize(bytes);
        assertTrue(filter.equals(filter2));
    }

    public void test_ElementFilterName() {
        outAndBack(new ElementFilter("name"));
    }

    public void test_ElementFilterNameNamespace() {
        outAndBack(new ElementFilter("name", Namespace.XML_NAMESPACE));
    }

    public void test_ElementFilterNamespace() {
        outAndBack(new ElementFilter(Namespace.XML_NAMESPACE));
    }

    public void test_ElementFilterEmpty() {
        outAndBack(new ElementFilter());
    }
}