I am not an expert with Weblogic, but I suspect there may be some
dependency that includes component that prevents use of Jackson. So...
On Tue, Mar 28, 2017 at 2:32 AM, Claude Libois <clibois.w...@gmail.com> wrote:
> Hello,
> I have been fighting since yesterday to enforce the simple pojo to me
> marshalled as {rules: [...]}:
> @XmlAccessorType(XmlAccessType.FIELD)
> @XmlType(name = "TRules", propOrder = {
> "rules"
> })
> @XmlRootElement(name = "Rules")
> @JsonRootName("rules")
> public class TRules {
>
> @XmlElement(name = "Rule", required = true)
> protected List<TRule> rules;
> public List<TRule> getRules() {
> if (rules == null) {
> rules = new ArrayList<TRule>();
> }
> return this.rules;
> }
>
> }
>
> However, I stil receive a json response with {Rule:[]}
> I have tried to use jsonRootName annotation to change things but nothing is
> working.
> By default weblogic is using moxy so I have enforced jackson usage by adding
> JacksonJsonProvider in my application class:
> @ApplicationPath("/rest")
>
> public class RulesApplication extends Application {
> @Override
> public Set<Class<?>> getClasses() {
> Set<Class<?>> classes = new HashSet<Class<?>>();
> classes.add(ProxyServiceImpl.class);
> classes.add(TRules.class);
> classes.add(TRule.class);
> classes.add(RuleRS.class);
> classes.add(JacksonJsonProvider.class);
> return classes;
> }
> }
> I have tried also with JacksonFeatures/JacksonJaxbJsonProvider...
> I have enforced weblogic to use my provided jackson library I have set up
> prefer-applicatio-packages for com.faster in the weblogic.xml
> <weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>
> xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-web-app
> http://xmlns.oracle.com/weblogic/weblogic-web-app/1.7/weblogic-web-app.xsd";>
> <container-descriptor>
> <prefer-application-packages>
> <package-name>org.slf4j.*</package-name>
> <package-name>ch.qos.logback.*</package-name>
> <package-name>org.jboss.logging.*</package-name>
> <package-name>com.sun.xml.bind.*</package-name>
> <package-name>org.glassfish.jersey.media.*</package-name>
> <package-name>com.fasterxml.jackson.*</package-name>
> </prefer-application-packages>
> </container-descriptor>
> <context-root>ref-rules-front</context-root>
> </weblogic-web-app>
> I have added a ton of maven dependencies because it wasn't clear for me
> which one should be used:
Let's see: yes, you need jackson components:
- jackson-jaxrs-json-provider
- jackson-databind
- jackson-core (dependency of databind)
- jackson-annotations (dependency of databind)
of which last 2 may be brought as dependency anyway. For these version
2.8.7 makes sense.
> <dependency>
> <groupId>com.fasterxml.jackson.jaxrs</groupId>
> <artifactId>jackson-jaxrs-json-provider</artifactId>
> <version>2.8.7</version>
> </dependency>
>
This, I think, should not be included, and may bring "wrong stuff"
> <dependency>
> <groupId>org.glassfish.jersey.media</groupId>
> <artifactId>jersey-media-jaxb</artifactId>
> <version>2.25.1</version>
> <scope>test</scope>
> </dependency>
> <dependency>
> <groupId>com.fasterxml.jackson.core</groupId>
> <artifactId>jackson-annotations</artifactId>
> <version>2.8.7</version>
> </dependency>
> <dependency>
> <groupId>com.fasterxml.jackson.jaxrs</groupId>
> <artifactId>jackson-jaxrs-json-provider</artifactId>
> <version>2.8.7</version>
> </dependency>
Also remove this: it could use old (Jackson 1.x) version of things.
In fact, that may be the main problem here:
> <dependency>
> <groupId>org.codehaus.jackson</groupId>
> <artifactId>jackson-jaxrs</artifactId>
> <version>1.9.13</version>
> </dependency>
>
>
>
> I'm totally lost because I think that whatever I do weblogic doesn't seems
> to use jackson. I have set some breakpoint in jackson code but no call.
> Any help would be appreciated.
> So the goal is just to have my list of rules name "rules" insteand of
> "Rule".
One other thing: by default, Jackson does not add such wrapper, as
it's more a result of XML/JSON impedance (wrapper is needed in XML due
to different data model).
So while annotation `@JsonRootName` (or JAXB equivalent thereof) will
indicate what wrapper to use if need be, wrapping is not added unless
SerializationFeature.WRAP_ROOT_VALUE
is enabled. You may already be doing that, but if not, that'd be needed.
It may configured as default for `ObjectMapper`, or configured for
`ObjectWriter`.
I assume here former would be easier since JAX-RS provider controls
use of settings.
Hope this helps,
-+ Tatu +-
> Best Regards,
> Claude
>
>
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