Hi Michal,
thank you for your response. I followed your instructions and removed
the dependency on "jersey-media-json-jackson".
Unfortunately that doesn't change anything. It seems that the default
Jackson provider is still used and not my own one.
I pushed my changes, could you have another look at it?
https://github.com/ne0h/proseminar2013/tree/jsonprovider/server/Java/SmartCampusServer/
With best thanks
Simon
Am 13.01.2014 22:21, schrieb Michal Gajdos:
> Hi Simon,
>
> you have dependency on both Jackson 1.x (via jersey-media-json-jackson)
> and Jackson 2.x (directly in your pom.xml). ObjectMapper class doesn't
> seem to be in the same package in Jackson 1
> (org.codehaus.jackson.map.ObjectMapper) than it is in Jackson 2 (
> com.fasterxml.jackson.databind.ObjectMapper). You have created
> ContextResolver for the latter (Jackson 2) but it's possible that
> Jackson 1 is used to (un)marshall your entities (and ContextResolver is
> not found). Try to remove dependency on jersey-media-json-jackson (+
> remove registration of JacksonFeature) and run your app again (MBR/MBW
> from Jackson 2 will still get registered via META-INF/services mechanism).
>
> Michal
>
> On 13.01.2014, 19:59 , Simon Herter wrote:
>> Hi,
>>
>> I have some problems when using my own @Provider. I'm using Jackson
>> for JSON processing and all works well but I can't figure out, how to
>> modify the jackson content provider.
>>
>> I registered my own provider as shown in documentation
>> (https://jersey.java.net/documentation/latest/media.html#json.jackson)
>> but the output does not change.
>>
>>
>> @Provider
>> @Produces(MediaType.APPLICATION_JSON)
>> public class JsonProvider implements ContextResolver<ObjectMapper>{
>>
>> final ObjectMapper om;
>>
>> public JsonProvider() {
>> om = new ObjectMapper();
>> om.enable(SerializationFeature.INDENT_OUTPUT);
>> }
>>
>> @Override
>> public ObjectMapper getContext(Class<?> type) {
>> return om;
>> }
>> }
>>
>>
>>
>> @ApplicationPath("/")
>> public class App extends ResourceConfig {
>>
>> public SmartCampusServer() {
>> packages("package");
>> register(JsonProvider.class);
>> register(JacksonFeature.class);
>> }
>> }
>>
>> I'm using recent stable versions of jackson and jersey.
>> Full Code is available as maven project on github
>> https://github.com/ne0h/proseminar2013/tree/jsonprovider/server/Java/SmartCampusServer/
>>
>> Simon Herter
>>
>