JPA No property findAll found for type Product - spring

Question

My repository：
#Repository
public interface ProductDao extends JpaRepository<Product,Long>,JpaSpecificationExecutor<Product> {
Page<Product> findAll(Specification<Product> specification,Pageable pageable);
}
My service:
...
#Autowired
public ProductServiceImpl(ProductRepository repository, ProductDao productDao, ProductImgService productImgService, ProductClassService productClassService, AuthUserService authUserService, DeviceService deviceService){
super(repository);
this.productDao = productDao;
this.productImgService = productImgService;
this.productClassService = productClassService;
this.authUserService = authUserService;
this.deviceService = deviceService;
}
final
ProductDao productDao;
...
I use it in the service like this:
midResult = productDao.findAll((root, criteriaQuery, criteriaBuilder) -> {
List<Predicate> list = new ArrayList<>();
list.add(criteriaBuilder.equal(root.get("ouId").as(Long.class),product.getOuId()));
if(product.getPclassId()!=null)
list.add(criteriaBuilder.equal(root.get("pclassId").as(Long.class),product.getPclassId()));
if(product.getProductStatus()!=null)
list.add(criteriaBuilder.equal(root.get("productStatus").as(Integer.class),product.getProductStatus()));
if(product.getProductName()!=null)
list.add(criteriaBuilder.equal(root.get("productName").as(String.class),product.getProductName()));
if(product.getCreator()!=null)
list.add(criteriaBuilder.equal(root.get("creator").as(Integer.class),product.getCreator()));
list.add(criteriaBuilder.between(root.get("createTimeTmp").as(Long.class),Long.parseLong(finalStarttsp),Long.parseLong(finalEndtsp)));
Predicate[] p = new Predicate[list.size()];
criteriaQuery.where(criteriaBuilder.and(list.toArray(p)));
return criteriaQuery.getRestriction();
}, pageable);
The Product Class definition is good .
And when I run this code , error turned out to be :
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property findAll found for type Product!
at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:77) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:329) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:309) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:272) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:243) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:247) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:398) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:378) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:86) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mybatis.repository.query.PartTreeMybatisQuery.<init>(PartTreeMybatisQuery.java:81) ~[spring-data-mybatis-1.0.17.RELEASE.jar:na]
at org.springframework.data.mybatis.repository.query.MybatisQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(MybatisQueryLookupStrategy.java:71) ~[spring-data-mybatis-1.0.17.RELEASE.jar:na]
at org.springframework.data.mybatis.repository.query.MybatisQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(MybatisQueryLookupStrategy.java:120) ~[spring-data-mybatis-1.0.17.RELEASE.jar:na]
at org.springframework.data.mybatis.repository.query.MybatisQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(MybatisQueryLookupStrategy.java:50) ~[spring-data-mybatis-1.0.17.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:436) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:221) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263) ~[spring-data-commons-1.13.6.RELEASE.jar:na]
at org.springframework.data.mybatis.repository.support.MybatisRepositoryFactoryBean.afterPropertiesSet(MybatisRepositoryFactoryBean.java:64) ~[spring-data-mybatis-1.0.17.RELEASE.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
I'm using springboot and there's no config like #EnableJpaRepositories
But it don't seems to be necessary cause other repository is good .

Answer 1

You are using spring-data in incorrect way. When you write method findAll in repository, it will look for given attribute in entity.
For example, you have an entity User with attribute firstName. Then you can defined method like, findByFirstName.
In given example, spring-data looking for attribute all which is not available as a part of Product.
In this case, you need to write your own query using #Query annotation.
BTW, what you want to achieve?

Answer 2

It works like this for me:
#NonNull
Page<Product> findAll(#Nullable Specification<Product> specification, #NonNull Pageable pageable);