jibx_Jibx Jersey2集成

jibx

Jersey2为Jackson和JAXB提供内置支持。但是默认情况下不支持Jibx。要将Jibx与Jersey2结合使用，我们将XML输入作为流，并在接收到请求之后，使用Jibx对其进行解析。但是实际上，有更好的方法可以使用MessageBodyReader和MessageBodyWriter API来实现相同目的。这是可以实现的方式：

为使用Jibx的XML定义新的提供程序
向Jersey ResourceConfig注册

@Provider
public class JibxXmlProvider implements MessageBodyReader<Object>, MessageBodyWriter<Object>  {public boolean isReadable(Class<?> type, Type genericType,Annotation[] annotations, MediaType mediaType) {     if(!MediaType.APPLICATION_XML_TYPE.equals(mediaType)){return false;}try {BindingDirectory.getFactory( type );} catch (JiBXException e) {return false;}return true;}public boolean isWriteable(Class<?> type, Type genericType,Annotation[] annotations, MediaType mediaType ) {      if(!MediaType.APPLICATION_XML_TYPE.equals(mediaType)){return false;}try {BindingDirectory.getFactory( type );} catch (JiBXException e) {return false;}return true;}public Object readFrom(Class<Object> type, Type genericType,Annotation[] annotations, MediaType mediaType,MultivaluedMap<String, String> httpHeaders, InputStream entityStream)throws IOException, WebApplicationException {try {IBindingFactory factory = BindingDirectory.getFactory( type );IUnmarshallingContext context = factory.createUnmarshallingContext();return context.unmarshalDocument( entityStream, null );        } catch (Exception e) {e.printStackTrace();}return null;}public void writeTo(Object obj, Class<?> type, Type genericType,Annotation[] annotations, MediaType mediaType,MultivaluedMap<String, Object> headers, OutputStream outputStream)throws IOException, WebApplicationException {try {IBindingFactory factory = BindingDirectory.getFactory( type );IMarshallingContext context = factory.createMarshallingContext();context.marshalDocument( obj, "UTF-8", null, outputStream );}catch ( Exception e ) {e.printStackTrace();}              }public long getSize(Object obj, Class<?> type, Type genericType,Annotation[] annotations, MediaType mediaType ) {return -1;}}

定义了此类后，请按照以下步骤在Jersey上注册：

public class JerseyResourceInitializer extends ResourceConfig {public JerseyResourceInitializer() {packages(true, "com.adaequare.processing.service");// This line registers JibxXmlProvider as a new provider.register(JibxXmlProvider.class, MessageBodyReader.class, MessageBodyWriter.class);}}

完成此配置后，每当有新请求出现时，就会调用JibxXmlProvider的isReadable方法。如果计算结果为true，则调用readFrom进行对象转换。

希望这可以帮助！