使用jaxb对字符串操作

2016-09-19

对象转xml字符串

/**
 * 
 * @param obj
 * @XmlAccessorType(XmlAccessType.FIELD) @XmlRootElement(name = "xml")
 * @param encoding
 * @return
 */
public static String convertToXml(Object obj, String encoding) {
    String result = null;
    try {
        JAXBContext context = JAXBContext.newInstance(obj.getClass());
        Marshaller marshaller = context.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding);

        StringWriter writer = new StringWriter();
        marshaller.marshal(obj, writer);
        result = writer.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return result;
}

xml字符串转java对象

public static <T> T converToJavaBean(String xml, Class<T> clazz) {
    try {
        JAXBContext context = JAXBContext.newInstance(clazz);
        Unmarshaller unmarshaller = context.createUnmarshaller();
        AbstractUnmarshallerImpl abstractUnmarshallerImpl = (AbstractUnmarshallerImpl) unmarshaller;
        return (T) abstractUnmarshallerImpl.unmarshal(new StringReader(xml));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

可能出现的错误：SAXNotRecognizedException: Feature ‘http://javax.xml.XMLConstants/feature/secure-

本地模式运行是好的，服务器模式下运行报错。原因是本地的jdk运行环境是1.7，服务器运行环境是1.8。所以导致此异常。
开发环境里面可以设置eclipse的jre