我想实现 Spring 应用程序,该应用程序为带有页面的表提供服务:
[HPM] GET /api_admin/transactions/find?page=0&size=10
Controller :
@GetMapping("find")
public Page<PaymentTransactionsDTO> getAllBySpecification(
@And({
@Spec(path = "uniqueId", spec = LikeIgnoreCase.class),
@Spec(path = "createdAt", params = "from", spec = GreaterThanOrEqual.class, config="uuuu-MM-dd'T'HH:mm:ss.SSSX"),
@Spec(path = "createdAt", params = "to", spec = LessThanOrEqual.class, config="uuuu-MM-dd'T'HH:mm:ss.SSSX")
}) Specification<Transactions> specification,
@SortDefault(sort = "createdAt", direction = Sort.Direction.DESC) Pageable pageable
) {
return transactionService.getAllBySpecification(specification, pageable)
.map(g -> TransactionsDTO.builder()
.id(g.getId())
..............
.build()
);
}
Spring 存储库:
public Page<PaymentTransactions> getAllBySpecification(final Specification<PaymentTransactions> specification, final Pageable pageable) {
return this.dao.findAll(specification, pageable);
}
我正在尝试使用此框架来实现搜索功能:https://github.com/tkaczmarzyk/specification-arg-resolver
我收到错误:
00:24:27.335 [http-nio-8020-exec-4] ERROR [dispatcherServlet][log:175] - Servlet.service() for servlet [dispatcherServlet] in context with path [/api_admin] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: No primary or default constructor found for interface org.springframework.data.jpa.domain.Specification] with root cause
java.lang.NoSuchMethodException: org.springframework.data.jpa.domain.Specification.<init>()
你知道我该如何解决这个问题吗?当我使用 Spring 部署到 JBoss 容器中时,我工作得很好,但现在当我使用 Spring Standalone 应用程序时,我会出现此异常。
最佳答案
根据the spec ,SpecificationArgumentResolver应该添加到argumentResolvers
@Configuration
@EnableJpaRepositories
public class MyConfig implements WebMvcConfigurer {
@Override
public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
argumentResolvers.add(new SpecificationArgumentResolver());
}
...
}
关于java - 没有找到接口(interface) org.springframework.data.jpa.domain.Specification] 的主要或默认构造函数,其根本原因,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60473987/