如何为这个json构建morphia模型？

<dependency>
    <groupId>org.mongodb.morphia</groupId>
    <artifactId>morphia</artifactId>
    <version>1.5.3</version>
</dependency>

@Entity("collectionName")
public class MyEntity {
    @Id
    private ObjectId id;
    
    @Property("name")
    private String name;
    
    // 其他字段...
    
    // 构造函数、getter和setter方法...
}

Morphia morphia = new Morphia();
Datastore datastore = morphia.createDatastore(new MongoClient("localhost", 27017), "yourDatabaseName");

morphia.map(MyEntity.class);

MyEntity entity = new MyEntity();
entity.setName("John Doe");
datastore.save(entity);

Query<MyEntity> query = datastore.createQuery(MyEntity.class);
List<MyEntity> entities = query.field("name").equal("John Doe").asList();