Java Ebean模型通过@onetomany关系获取客户信息和身份，而不承担债务

我是新的游戏框架，并试图使一个项目。也许有些部分我会出错，如果是的话请纠正我。我有3个模型，分别是客户、身份和债务。客户只有一个身份，有许多债务。虽然我试图只获取客户及其身份，但未来的结果包括其债务。我的错在哪里？在我的模型中，还是我在寻找错误的方法

Customers.java

@Entity
@Table(name="customers")
public class Customers extends Model {

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public int id;

public int identity_id;

@Formats.DateTime(pattern = "dd/MM/yy")
public Date register_date;

public boolean status;
public Date closing_date;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date created_at;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date updated_at;

@OneToOne
@JoinColumn(name="identity_id", referencedColumnName = "id", unique = true)
public Identities identity;

@OneToMany(mappedBy = "customer", cascade=CascadeType.ALL)
public List<Debts> debts;

public static final Finder<Long, Customers> find = new Finder<>(
        Long.class, Customers.class);

}

---

它是否包括仅填充了debt.id的

债务

？或者它是在查询完整的债务对象？它是在查询我不想看到的完整债务对象。我不确定它是否会工作，或者它是否是正确的解决方案，但您可以尝试添加：

fetch=FetchType.LAZY

创建一个示例项目并将其放在github上需要大量的工作吗？我不能帮你自己复制它，如果我能帮忙的话当然：-）还有：你能删除

吗？选择（“*”

，保留延迟提取，然后再试一次

@Entity
@Table(name="identities")
public class Identities extends Model {

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public int id;

@Constraints.Required
public int customer_id;

public Long citizen_no;
public String full_name;

@JsonSerialize(using = JsonDateSerializer.class)
public Date birthdate;

public Integer place_of_birth;
public String father_name;
public String mother_name;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date created_at;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date updated_at;

public static final Model.Finder<Long, Identities> find = new Model.Finder<>(
        Long.class, Identities.class);
}

@Entity
@Table(name="debts")
public class Debts extends Model {

@Id
public Long id;

public int customer_id;
public Integer payment_id;

@JsonSerialize(using = JsonDateSerializer.class)
public Date billed_date;

public Float cost;
public Float taxes;
public boolean status;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date created_at;

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy HH:mm:ss")
public Date updated_at;

@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "customer_id", referencedColumnName = "id")
private Customers customer;


public static final Model.Finder<Long, Debts> find = new Model.Finder<>(
        Long.class, Debts.class);
}

public class CustomersController extends BaseController {

public Result show(long id) {

    Customers customer = Customers.find.select("*")
            .fetch("identity")
            .where()
            .eq("id", id)
            .findUnique();

    return ok(Json.toJson(customer));
  }
}