I want to use Jackson as JSON provider for my JAX-RS 2.0 webservice. For JAX-RS I use Jersey 2.0 in GlassFish 4. With JAX-RS 1.x I can add
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
in my web.xml
. How can i do this in Jax-RS 2.0 with Jersey 2.0?
I implement a application class like this
public class MyRESTExampleApplication extends ResourceConfig {
public MyRESTExampleApplication() {
packages("com.carano.fleet4all.restExample");
register(JacksonFeature.class);
}
}
and add these lines to my web.xml
.
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.example.restExample.MyRESTExampleApplication</param-value>
</init-param>
But I get an exception by the request org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyWriter not found for media type=application/json, type=class ...
My pom.xml
looks like this
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
You should only need to get the implementation jar Jackson JAX-RS provider, add that to your classpath, and it should work. Version 2.x uses SPI-based auto-registration, so that you do not need anything in web.xml
.