Spring @ReponseBody @RequestBody with abstract class
I just found the answer myself and here is the reference link.
What I have done is added some code above the abstract class
import com.fasterxml.jackson.annotation.JsonSubTypes;import com.fasterxml.jackson.annotation.JsonTypeInfo;import com.fasterxml.jackson.annotation.JsonTypeInfo.*;@JsonTypeInfo(use = Id.NAME, include = As.PROPERTY, property = "type")@JsonSubTypes({ @JsonSubTypes.Type(value = Cat.class, name = "cat"), @JsonSubTypes.Type(value = Dog.class, name = "dog")})public abstract class Animal{}Then in the json input in HTML,
var inputjson = { "type":"cat", //blablabla};After submitting the json and finally in the controller,
@RequestMapping(value = "/animal", method = RequestMethod.POST, produces = "application/json; charset=utf-8", consumes=MediaType.APPLICATION_JSON_VALUE)public @ResponseBody insertanimal(@RequestBody Animal tmp) { return tmp;}In this case variable tmp is automatically converted to a Dog or Cat object, depending on json input.