对象和xml之间相互转换的工具类.docxVIP

package com.star.sms.business.note.sendnote.utils; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; import javax.xml.bind.Unmarshaller; /** * 对象与xml之间相互转换的工具类 * @author guojz * */ public class JaxbUtils { private static final String DEFAULT_ENCODING = gbk; /** * 指定对象和编码方式将对象解析为xml字符串 * * @param obj * @param encoding * @return * @throws IOException * @throws JAXBException */ public static String objectToXmlString(Object obj, String encoding) throws JAXBException, IOException { return objectToXmlString(obj, true, false, encoding); } /** * 按照默认的编码方式将对象解析为xml字符串 * * @param obj * @return * @throws IOException * @throws JAXBException */ public static String objectToXmlString(Object obj) throws JAXBException, IOException { return objectToXmlString(obj, null); } /** * * @param obj * @param isFormat * 是否格式化 * @param cancelXMLHead * 是否省略xml文件头 * @param encoding * 编码方式， 默认为“gb312” * @return * @throws JAXBException * @throws IOException */ public static String objectToXmlString(Object obj, boolean isFormat,boolean cancelXMLHead, String encoding) throws JAXBException, IOException { if (encoding == null) { encoding = DEFAULT_ENCODING; } JAXBContext context = JAXBContext.newInstance(obj.getClass()); Marshaller m = context.createMarshaller(); m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, isFormat); m.setProperty(Marshaller.JAXB_FRAGMENT, cancelXMLHead); m.setProperty(Marshaller.JAXB_ENCODING, encoding); ByteArrayOutputStream out = new ByteArrayOutputStream(); m.marshal(obj, out); String xmlString = new String(out.toByteArray()); out.flush(); out.close(); return xmlString; } /** * 将xml字符串解析为对象 * @param obj * @param xmlString * @return * @throws JAXBException