Question

使用GraphQL从MongoDB数据库中获取DateTime时遇到了麻烦。每次我收到Expected的错误时，我们都可以将其转换为'java.time.OffsetDateTime'，但它的内容为'LocalDateTime'。我这样设置模式

scalar DateTime
scalar Date

type Query {
   users: [User]
}

type User {
  id: ID!
  username: String!
  password: String!
  email: String!
  dateOfBirth: Date
  dateCreated: DateTime!
}

并像这样设置GraphQL-Java扩展标量

@Component
class scalars() {


@Bean
fun objectMapper(): ObjectMapper? {
    return ObjectMapper().registerModule(JavaTimeModule())
            .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
}

@Bean
fun schemaParserOptions(): SchemaParserOptions? {
    return SchemaParserOptions.newOptions()
            .objectMapperProvider(PerFieldObjectMapperProvider { fieldDefinition: FieldDefinition? -> objectMapper() }).build()
}

@Bean
fun date(): GraphQLScalarType? {
    return ExtendedScalars.Date
}

@Bean
fun datetime(): GraphQLScalarType? {
    return ExtendedScalars.DateTime
}
}

日期工作正常，但DateTime不起作用。我将用户设置为

@Document(collection = "users")
data class UserEntity(
    var username: String,
    var password: String,
    var email: String,
    var dateOfBirth: LocalDate,
    var dateCreated: LocalDateTime
 ) {
    @Id
    var id: String = ""
 }

所以我想知道我的用户对象的DateTime应该是哪种数据类型，如何正确设置扩展的DateTime标量才能工作，以便可以从MongoDB中检索它？谢谢您的提前帮助

我在数据库中的DateTime也是这样设置的："dateCreated" : ISODAte("2020-0703T:30:52.237Z")

Spring Boot Kotlin使用GraphQL-Java从MongoDB数据库中获取DateTime总是抛出错误

0 个答案: