Java Jersey MongoDB获取子列表

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

import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;

@Path("/sublist")
public class SubListResource {

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public List<Document> getSubList() {
        // 连接到MongoDB数据库
        MongoClient mongoClient = new MongoClient("localhost", 27017);
        MongoDatabase database = mongoClient.getDatabase("mydb");
        MongoCollection<Document> collection = database.getCollection("mycollection");

        // 查询指定文档的子文档列表
        Document query = new Document("field", "value");
        Document document = collection.find(query).first();
        List<Document> subList = document.getList("sublist", Document.class);

        // 关闭数据库连接
        mongoClient.close();

        return subList;
    }
}