SpringBoot GraphQL 突變給出錯誤沒有找到查詢類型“查詢”的根解析器

Question

在帶有 GraphQL 的 SpringBoot 中使用突變時，我收到錯誤No Root resolvers for query type 'Query' found 。查詢工作正常，但在添加 GraphQLMutationResolver 時，它在 Spring 引導啟動時給出錯誤。

好心提醒。

.graphqls 文件

type Query {
    allBooks: [Book]
    getBookByIsn(isn: Int): Book
    allPublishers: [Publisher]
}

type Book {
    isn: Int
    title: String
    author: String
    publishedDate: String
    publisher: Publisher!
}

type Publisher {
    pId : Int
    publisherName: String
    address: String
}

input CreatePublisher {
    pId : Int
    publisherName: String
    address: String
}


type Mutation {
    addPublisher(input: CreatePublisher!): Publisher
}

突變解析器

@Component
public class PublisherMutation implements GraphQLMutationResolver{
    
    @Autowired
    private PublisherRepository publisherRepository;
    
    @Transactional
    public Publisher addPublisher(CreatePublisher createPublisher ) {
        Publisher publisher = new Publisher(createPublisher.getPId(), createPublisher.getPublisherName(), createPublisher.getAddress());
        publisherRepository.save(publisher);
        return publisher;
        
    }

}

Answer 1

完成，通過為 Create 添加 Mutation 類型的newTypeWiring來解決