XmlUtil--基于javax解析xml

亦凉 2022-05-11 08:48 137阅读 0赞

package test;
    import java.io.ByteArrayInputStream;
    import java.io.ByteArrayOutputStream;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import javax.xml.bind.JAXBContext;
    import javax.xml.bind.JAXBException;
    import javax.xml.bind.Marshaller;
    import javax.xml.bind.Unmarshaller;
    public class XmlUtil { 
         public static <T> T xmITobean(Class<T> clazz, String xml) throws JAXBException, IOException { 
             try { 
                  ByteArrayInputStream is  = new ByteArrayInputStream(xml.getBytes("UTF-8"));
                  JAXBContext jc = JAXBContext.newInstance(clazz);
                  Unmarshaller u = jc.createUnmarshaller();
                  return (T) u.unmarshal(is);
             }catch (JAXBException e) { 
                  throw e;
             }
         }
         public static <T> String beanToXml(Class<T> c,T t) throws JAXBException, UnsupportedEncodingException { 
             JAXBContext context = JAXBContext.newInstance(c);
             Marshaller marshaller= context. createMarshaller();
             //编码格式
              marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
             //是否格式化生成的xm1串
              marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
             //是否省略Ⅻm1头信息(<?xm1 version="1.0" encoding="gb2312” standalone="yes"?
              marshaller.setProperty(Marshaller.JAXB_FRAGMENT, false);
             ByteArrayOutputStream out = new ByteArrayOutputStream();
             marshaller. marshal(t, out);
             //转码
             return out.toString("UTF-8");
         }
    }