Jaxb

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/* * Copyright (c) 2015. Bond(China), java freestyle app */package com.jfa.commons.util;import javax.xml.bind.*;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.lang.reflect.Method;public class JAXBUtils {    /**     * 通过一个指定的Java类，和一个文件生成一个POJO     *     * @param clz    Class     *               由xjc.bat生成     * @param xmlDoc 数据文件     * @return     * @throws JAXBException     */    @SuppressWarnings("unchecked")    public static <T extends Object> T parseXmlDocument(Class<?> clz, File xmlDoc) throws JAXBException {        JAXBContext jaxbContext = JAXBContext.newInstance(clz);        Unmarshaller shaller = jaxbContext.createUnmarshaller();        return (T) shaller.unmarshal(xmlDoc);    }    /**     * 生成一个指定XML文档     *     * @param t             T     * @param storeFileName     * @return     * @throws JAXBException     * @throws FileNotFoundException     */    public static <T extends Object> Boolean generalXmlDocument(T t, String storeFileName) throws JAXBException {        try {            String pkg = t.getClass().getPackage().getName();            JAXBContext context = JAXBContext.newInstance(pkg);            JAXBElement<?> element = _invoke(t);            if (element == null) {                return false;            }            Marshaller marshaller = context.createMarshaller();            marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);            marshaller.marshal(element, new FileOutputStream(storeFileName));            return true;        } catch (Exception e) {            throw new JAXBException(e);        }    }    /*     * 生成一个工厂对象,并创建JAXBElement对象     */    @SuppressWarnings("unchecked")    private static <T extends Object> JAXBElement<T> _invoke(Object o) throws Exception {        String pkg = o.getClass().getPackage().getName();        Class<?> clz = Class.forName(pkg + ".ObjectFactory");        Method[] methods = clz.getMethods();        Object factory = clz.newInstance();        String destName = "create" + o.getClass().getSimpleName();        for (Method method : methods) {            if (method.getName().equals(destName)) {                return (JAXBElement<T>) method.invoke(factory, o);            }        }        return null;    }}
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