Jaxb2 transform XML Document--Complete Java object and XML conversion __java

Source: Internet
Author: User
Jaxb2 Transform XML Document--Complete Java object and XML conversion

This time, Jaxb2 completes the conversion of XML, JAXB2 uses the new features of JDK. such as: Annotation, GenericType and so on, Jaxb2 need to add Annotation annotation in the JavaBean that will be converted. Let's take a look at how Jaxb2 is completing the conversion of Java objects to XML.

First, preparatory work

1. Resource Preparation

A) official documents: http://www.oracle.com/technetwork/articles/javase/index-140168.html

b) Jar pack Download: Http://jaxb.java.net/2.2.3/JAXB2_20101209.jar

If you have a jar to add JDK to the project, there is a jaxb2 in the Rt.jar. In general, you do not need to add jaxb2 jars yourself.

2, code preparation before the program

Package com.hoo.test;
Import java.io.IOException;
Import Java.io.StringReader;
Import Java.io.StringWriter;
Import java.util.ArrayList;
Import Java.util.HashMap;
Import java.util.List;
Import Java.util.Map;
Import Javax.xml.bind.JAXBContext;
Import javax.xml.bind.JAXBException;
Import Javax.xml.bind.Marshaller;
Import Javax.xml.bind.Unmarshaller;
Import Org.junit.After;
Import Org.junit.Before;
Import Org.junit.Test;
Import Com.hoo.entity.Account;
Import Com.hoo.entity.AccountBean;
Import Com.hoo.entity.Birthday;
Import Com.hoo.entity.ListBean;
Import Com.hoo.entity.MapBean;
/**
function: Jaxb2 Complete the Java and XML grouping, solution Group
* @author Hoojo
* @createDate 2011-4-25 11:54:06
* @file Jaxb2test.java
* @package Com.hoo.test
* @project Webhttputils
* @blog Http://blog.csdn.net/IBM_hoojo
* @email hoojo_@126.com
* @version 1.0
*/
public class Jaxb2test {
    Private Jaxbcontext context = null;
    
    Private StringWriter writer = null;
    private StringReader reader = null;
    
    Private Accountbean bean = null;
    
    @Before
    public void init () {
        Bean = new Accountbean ();
        Bean.setaddress ("Beijing");
        Bean.setemail ("email");
        Bean.setid (1);
        Bean.setname ("Jack");
        Birthday day = new Birthday ();
        Day.setbirthday ("2010-11-22");
        Bean.setbirthday (day);
        
        try {
            Context = Jaxbcontext.newinstance (Accountbean.class);
        catch (Exception e) {
            E.printstacktrace ();
        }
    }
    
    @After
    public void Destory () {
        context = NULL;
        Bean = null;
        try {
            if (writer!= null) {
                Writer.flush ();
                Writer.close ();
            }
            if (reader!= null) {
                Reader.close ();
            }

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