javax.xml + java.io xml和java对象互转工具类

最新推荐文章于 2024-01-24 16:34:32 发布

原创最新推荐文章于 2024-01-24 16:34:32 发布 · 163 阅读

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文章标签：

#javax.xml # java.io # xml # xmlxml和java对象互转工具类

本文介绍了一个实用的Java工具类，该工具类能够实现XML字符串与Java对象之间的相互转换。利用JAXB技术，该工具类支持指定编码格式、输出格式化及控制XML头部信息等功能。

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import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import java.io.StringReader;
import java.io.StringWriter;

/**xml和java对象互转工具类
*@Description:
*/
public class JaxbObjectAndXmlUtil {

    public static <T> T xml2Object(String xmlStr,Class<T> c)
    {
        try
        {
            JAXBContext context = JAXBContext.newInstance(c);
            Unmarshaller unmarshaller = context.createUnmarshaller();

            T t = (T) unmarshaller.unmarshal(new StringReader(xmlStr));

            return t;

        } catch (JAXBException e) {  e.printStackTrace();  return null; }

    }

    /**
     * @param object 对象
     * @return 返回xmlStr
     */
    public static String object2Xml(Object object)
    {
        if(object == null)
        {
            return null;
        }
        try
        {
            StringWriter writer = new StringWriter();
            JAXBContext context = JAXBContext.newInstance(object.getClass());
            Marshaller marshal = context.createMarshaller();

            marshal.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); // 格式化输出
            marshal.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");// 编码格式,默认为utf-8
            marshal.setProperty(Marshaller.JAXB_FRAGMENT, true);// 是否省略xml头信息
            marshal.setProperty("jaxb.encoding", "utf-8");
            marshal.marshal(object,writer);

            return new String(writer.getBuffer());

        } catch (Exception e) { e.printStackTrace(); return null;}

    }
}