나는 Jackson과 내 자신의 MessageBodyWriter, BeanSerializerModifier 및 JsonSerializer를 사용하여 관리했습니다. XML을 사용하는 방법을 찾아야합니다.
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
/**
* Created by jayen on 17/12/13.
*/
@SuppressWarnings({"DefaultFileTemplate"})
@Produces({"application/json", "application/*+json"})
@Provider
public class ResponseJSONWriter implements MessageBodyWriter<Response> {
@Override public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return Response.class.isAssignableFrom(type);
}
@Override
public long getSize(Response response, Class<?> type, Type genericType, Annotation[] annotations,
MediaType mediaType) {
return -1;
}
@Override
public void writeTo(Response response, Class<?> type, Type genericType, Annotation[] annotations,
MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
throws IOException, WebApplicationException {
try {
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new JaxbAnnotationModule());
mapper.setSerializerFactory(
mapper.getSerializerFactory().withSerializerModifier(new BeanSerializerModifier() {
@Override
public JsonSerializer<?> modifySerializer(SerializationConfig config, BeanDescription beanDesc,
JsonSerializer<?> serializer) {
return new FlushingSerializer<>(serializer);
}
}));
mapper.writeValue(entityStream, response);
} catch (Throwable e) {
e.printStackTrace();
}
}
private class FlushingSerializer<T> extends JsonSerializer<T> {
private final JsonSerializer<T> serializer;
public FlushingSerializer(JsonSerializer<T> serializer) {
this.serializer = serializer;
}
@Override public void serialize(T value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonProcessingException {
serializer.serialize(value, jgen, provider);
jgen.flush();
}
}
}