API-平台，在发布时出错。断言触发器，尽管数据是发送的。

Question

当我使用API平台(Swagger/Postman)发布新数据时，出现了一个错误。有人能解释吗？我有一个可以正常工作的装置。

curl -X POST "http://localhost:8080/countries" -H  "accept: application/json" -H  "Content-Type: application/json" -d "[{\"name\":\"Aruba2\",\"iso2\":\"ZZ\",\"iso3\":\"ZZZ\",\"region\":\"Americas\",\"subregion\":\"Caribbean\",\"capital\":\"Oranjestad\",\"latitude\":12.5,\"longitude\":-69.96666666,\"isEc\":false,\"isEfta\":false}]"

数据具有良好的结构和有效性。

我收到的错误

{
  "type": "https://tools.ietf.org/html/rfc2616#section-10",
  "title": "An error occurred",
  "detail": "name: The country name should not be blank\nname: The country name should not be null\niso2: The iso-2 cannot be blank\niso3: The iso-3 cannot be blank\nregion: The region cannot be blank\nsubregion: The sub-region cannot be blank\ncapital: The capital cannot be blank\nlatitude: The latitude cannot be blank\nlongitude: The longitude cannot be blank\nisEc: The field cannot be blank\nisEfta: The field cannot be blank",
  "violations": [
    {

这是实体代码。

/**
 *
 * @ApiResource(
 *     iri="https://schema.org/Country",
 *     routePrefix="/",
 *     shortName="Countries",
 *     description="API Access to Country Entity",
 *     normalizationContext={"groups"={"country:read"}},
 *     denormalizationContext={"groups"={"country:write"}},
 *     collectionOperations={"GET","POST",
 *         "GETLIST"={
 *             "method"="GET",
 *             "description"="Retrieves a limited set of properties of Country resources",
 *             "path"="country_list_short",
 *             "normalization_context"={"groups":"country:list:short:read"}
 *         }
 *     }
 * )
 *
 * @ORM\Entity(repositoryClass=CountryRepository::class)
 *
 */
class Country extends AbstractEntity

/**
 *
 * @ORM\Column(
 *     name="name",
 *     type="string",
 *     length=128,
 *     nullable=false,
 *     options={"comment":"Country name (English)"}
 * )
 *
 * @Assert\Unique(message="The name {{ value }} already in the table")
 * @Assert\NotBlank(message="The country name should not be blank")
 * @Assert\NotNull(message="The country name should not be null")
 * @Assert\Length(
 *     min="2",
 *     minMessage="The Country name expected minimum length is {{ limit }}",
 *     max="128",
 *     maxMessage="The Country name expected maximum length is {{ limit }}"
 * )
 *
 * @Groups({"country:read","country:write","country:list:short:read"})
 */
private $name;

Answer 1

您正在发送一个JSON数组，而不是JSON对象。

只需删除前面和附加的方括号：

{\"name\":\"Aruba2\",\"iso2\":\"ZZ\",\"iso3\":\"ZZZ\",\"region\":\"Americas\",\"subregion\":\"Caribbean\",\"capital\":\"Oranjestad\",\"latitude\":12.5,\"longitude\":-69.96666666,\"isEc\":false,\"isEfta\":false}

编辑：

此外，您还使用了@Assert\Unique注释。这是一个错误。这个注释必须是与集合一起使用。给定错误消息和属性类型，您希望使用@Assert\UniqueEntity‘，这是一个检查属性在表中是否唯一的类对比。