Spring Data JPA通过嵌入式密钥中的多个字段查找

Question

I need to find an object using two fields of an embedded key

Here is the embedded key:

public class OrderItemId implements Serializable {

    private static final long serialVersionUID = 1163347452811191867L;

    @Column(name = "order_code", length = 25)
    private String orderCode;

    @Column(name = "barcode", length = 25)
    private String barcode;

    // ....
}

Here is the class of the object I want to query:

@Entity
@Table(name = "order_item")
public class OrderItem {

    @EmbeddedId
    @NotNull
    private OrderItemId id;

    @Column(name = "quantity")
    private Integer quantity;

    @Column(name = "price")
    private Double price;

    // ...
}

As in this StackOverflow Answer

To query by embedded key orderCode , I can write something like this

public List<OrderItem> findById_OrderCode(String orderCode);

and it works!

But I don't know how to query by both orderCode and barcode . I have tried some forms of and but no use.

Answer 1

没关系，我已经找到查询了，这是

public OrderItem findById_OrderCodeAndId_Barcode(String orderCode, String barcode);