spring-boot - 为什么 GraphQL Playground 会出现 404 错误？

Question

我无法让 GraphQL 服务器使用 SpringBoot 工作。

事实上，playground 正在网上显示，但它并没有让我做任何事情。这是我从 Graphql 游乐场得到的错误。 "error": "Response not successful: Received status code 404" 右侧用于查询和解析器的游乐场文档正在无限加载。

dependencies {
  implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
  implementation 'org.springframework.boot:spring-boot-starter-web'
  implementation 'org.codehaus.groovy:groovy'
  developmentOnly 'org.springframework.boot:spring-boot-devtools'
  runtimeOnly 'com.h2database:h2'

  implementation 'com.graphql-java-kickstart:graphql-java-tools:12.0.1'
  implementation 'com.graphql-java-kickstart:playground-spring-boot-starter:5.10.0'
}

// Application.java
@SpringBootApplication
class Application {
  static void main(String[] args) {
    SpringApplication.run(Application, args)
  }
}

// resolver/BankAccountResolver.java 
@Slf4j
@Component
class BankAccountResolver implements GraphQLQueryResolver {
  void bankAccount(UUID id) {
    log.info "Retrieving bank account: $id"
  }
}

// domain/BankAccount.java 
class BankAccount {
  UUID id
  String name
  Currency currency
}

// query.graphqls
type Query {
    bankAccount(id: ID): BankAccount
}

// bankAccount.graphqls
type BankAccount {
    id: ID!
    name: String!
    currency: Currency!
}