如何使用Helidon 2.0.0-M-2更改查询返回的JSON

<dependency>
    <groupId>io.helidon.microprofile.bundles</groupId>
    <artifactId>helidon-microprofile-2.0</artifactId>
    <version>2.0.0-M2</version>
</dependency>

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/query")
public class QueryResource {

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public MyData getQueryResult() {
        // 处理查询逻辑并返回数据
        MyData data = new MyData();
        data.setName("John");
        data.setAge(30);
        return data;
    }
}

import io.helidon.microprofile.server.Server;

public class Main {

    public static void main(String[] args) {
        Server server = Server.create().start();
    }
}

server:
  port: 8080

routing:
  - path: "/query"
    methods: GET
    target: class:com.example.QueryResource

mvn package
java -jar target/myapp.jar