Annotations-only approach Alternatively to the custom deserializer approach, you can have the following for an annotations-only solution (similar to the one described in Spunc’s answer, but using type as an external property): public abstract class AbstractData { private Owner owner; private Metadata metadata; // Getters and setters } public static final class FooData extends AbstractData … Read more
Your parameter should either be a @RequestParam, or a @RequestBody, not both. @RequestBody is for use with POST and PUT requests, where the body of the request is what you want to parse. @RequestParam is for named parameters, either on the URL or as a multipart form submission. So you need to decide which one … Read more
Well, by default Jackson uses one of two annotations when trying to determine the root name to be displayed for wrapped values – @XmlRootElement or @JsonRootName. It expects this annotation to be on the type being serialized, else it will use the simple name of the type as the root name. In your case, you … Read more
If it’s reasonable to alter the original Map data structure to be serialized to better represent the actual value wanted to be serialized, that’s probably a decent approach, which would possibly reduce the amount of Jackson configuration necessary. For example, just remove the null key entries, if possible, before calling Jackson. That said… To suppress … Read more
@JsonPropertyOrder({ “id”, “label”, “target”, “source”, “attributes” }) public class Relation { … }
In Jackson 2.4, you can convert as follows: MyClass newJsonNode = jsonObjectMapper.treeToValue(someJsonNode, MyClass.class); where jsonObjectMapper is a Jackson ObjectMapper. In older versions of Jackson, it would be MyClass newJsonNode = jsonObjectMapper.readValue(someJsonNode, MyClass.class);
Instead of this packagingOptions { exclude ‘META-INF/LICENSE’ exclude ‘META-INF/NOTICE’ } try this packagingOptions { exclude ‘META-INF/DEPENDENCIES.txt’ exclude ‘META-INF/LICENSE.txt’ exclude ‘META-INF/NOTICE.txt’ exclude ‘META-INF/NOTICE’ exclude ‘META-INF/LICENSE’ exclude ‘META-INF/DEPENDENCIES’ exclude ‘META-INF/notice.txt’ exclude ‘META-INF/license.txt’ exclude ‘META-INF/dependencies.txt’ exclude ‘META-INF/LGPL2.1’ } and more thing Remove this line apply plugin: ‘com.google.gms.google-services’ from Bottom and add to Top after this apply plugin: ‘com.android.application’. … Read more
You can do this to traverse the tree and keep track of how deep you are to figure out dot notation property names: import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.node.ArrayNode; import com.fasterxml.jackson.databind.node.ObjectNode; import com.fasterxml.jackson.databind.node.ValueNode; import java.io.IOException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import org.junit.Test; public class FlattenJson { String json = “{\n” + ” \”Port\”:\n” + … Read more
I have finally found a solution. I changed the import statement from import com.fasterxml.jackson.annotate.JsonIgnore; // com. instead of org. to import org.codehaus.jackson.annotate.JsonIgnore; Basically you have to make sure you are using the same class everywhere.
When we are working with Java 8 Time package and Jackson good idea is to use jackson-modules-java8 project which serves many serialisers and deserialisers ready to use. To enable it we need to register JavaTimeModule module. To serialise Instant InstantSerializer is used. When we check how it is implemented we will find out that behind … Read more