Hibernate JPA Spring Boot忽略特定请求的JSON属性

Question

@Entity 
public class ProductItem {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY) 
    private Long id;
    @ManyToOne
    private Organization org;
    @ManyToOne
    private Supplier supplier;
    private String barCode;
    private String description;
    private String name;
    private Integer stock;
    private Integer caseQty;
    private BigDecimal caseCost;
    @ManyToMany(cascade=CascadeType.ALL)
    private List<Note> notes;
    @CreationTimestamp
    private LocalDateTime createdOn;
    @UpdateTimestamp
    private LocalDateTime updatedOn;

@Entity 
public class Supplier {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY) 
    private Long id;
    private String name;
    @ManyToMany(cascade=CascadeType.ALL)
    private List<Note> notes;
    @ManyToOne(cascade=CascadeType.ALL)
    private Address address;
    @ManyToOne
    private Organization org;

{
    "id": 1,
    "org": {
        "id": 1,
        "name": "Test",
        "address": {
             "name": "Test"
            },
        "website": null,
        "phone": null
    },
    "supplier": {
        "id": 1,
        "name": "Sams Club",
        "notes": [],
        "address": {
         "name": "Test"
        },
        "org": {
            "id": 1,
            "name": "Test",
            "address": {
             "name": "Test"
            },
            "website": null,
            "phone": null
        }
    },
    "barCode": "UPC134",
    "description": "This is description. This is description. This is description. This is description. ",
    "name": "Sunchips",
    "stock": 10,
    "caseQty": 34,
    "caseCost": 29.99,
    "notes": [
        {
            "id": 1,
            "title": "Product Item Created",
            "description": "Note created by user X on 12/16/2019 11:00PM"
        },
        {
            "id": 2,
            "title": "Product Item Updated",
            "description": "Product ITem updated stock by user X on 12/16/2019 11:00PM"
        }
    ],
    "createdOn": "2019-02-28T13:44:39",
    "updatedOn": "2019-02-28T13:44:39"
}

{
    "id": 1,
    "org": {
        "id": 1,
        "name": "Test",
        "address": null,
        "website": null,
        "phone": null
    },
    "supplier": {
        "id": 1,
        "name": "Sams Club",
    },
    "barCode": "UPC134",
    "description": "This is description. This is description. This is description. This is description. ",
    "name": "Sunchips",
    "stock": 10,
    "caseQty": 34,
    "caseCost": 29.99,
    "notes": [
        {
            "id": 1,
            "title": "Product Item Created",
            "description": "Note created by user X on 12/16/2019 11:00PM"
        },
        {
            "id": 2,
            "title": "Product Item Updated",
            "description": "Product ITem updated stock by user X on 12/16/2019 11:00PM"
        }
    ],
    "createdOn": "2019-02-28T13:44:39",
    "updatedOn": "2019-02-28T13:44:39"
}

 {
        "id": 1,
        "name": "Sams Club",
        "notes": [],
        "address": {
         "name": "Test"
        },
        "org": {
            "id": 1,
            "name": "Test",
            "address": null,
            "website": null,
            "phone": null
        }

Answer 1

您可以使用Jackson Json视图来控制某些控制器方法的序列化/反序列化。简要示例：

查看定义：

public class Views {
    public static class BriefSupplier {
    }

    public static class FullSupplier extends BriefSupplier {
    }
}

供应商：

@Entity 
public class Supplier {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY) 
    @JsonView(Views.BriefSupplier.class)
    private Long id;
    @JsonView(Views.BriefSupplier.class)
    private String name;
    @ManyToMany(cascade=CascadeType.ALL)
    @JsonView(Views.FullSupplier.class)
    private List<Note> notes;
    @ManyToOne(cascade=CascadeType.ALL)
    @JsonView(Views.FullSupplier.class)
    private Address address;
    @ManyToOne
    @JsonView(Views.FullSupplier.class)
    private Organization org;
}

@JsonView(Views.BriefSupplier.class)
@RequestMapping("/product/{productId}")
public Product getProduct(@PathVariable int productId) { ... }

@JsonView(Views.FullSupplier.class)
@RequestMapping("/supplier/{supplierId}")
public Supplier getSupplier(@PathVariable int supplierId) { ... }