UnsatisfiedDependencyException, Error creating bean with name - spring-boot

Question

when I'm trying to start the application I get the following message:
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'productServiceImpl' defined in file
[C:\Users\Acasa\0 SDA\0 Proiecte
practice\attentive2details\target\classes\com\example\attentive2details\Service\ProductServiceImpl.class]:
Unsatisfied dependency expressed through constructor parameter 0;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'productRepository' defined in
com.example.attentive2details.repositories.ProductRepository defined
in #EnableJpaRepositories declared on
JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration:
Invocation of init method failed; nested exception is
org.springframework.data.repository.query.QueryCreationException:
Could not create query for public abstract java.util.List
com.example.attentive2details.repositories.ProductRepository.findByNameStartingWith(java.util.List)!
No property name found for type Produs!
This is happening since I have added a new method List<Produs> findByNameStartingWith(List<Produs> string) into the ProductRepository.
The application code is:
#Data
#Table
#Entity
#AllArgsConstructor
#NoArgsConstructor
public class Product {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#Column
private String produs;
#Column
private Float calories;
}
#Repository
public interface ProductRepository extends JpaRepository<Product, Integer> {
List<Product> findByNameStartingWith(List<Product> string);
}
public interface ProductService {
List<Product> findByNameStartingWith(List<Product> string);
}
#Service
public class ProductServiceImpl implements ProductService {
ProductRepository productRepository;
public ProductServiceImpl(ProductRepository productRepository) {
this.productRepository = productRepository;
}
#Override
public List<Product> findByNameStartingWith(List<Product> string) {
return productRepository.findByNameStartingWith(string);
}
}
#RequestMapping("/api")
#RestController
public class ProductController {
private final ProductService productService;
public ProductController(ProductService productService) {
this.productService = productService;
}
#GetMapping("findProductbyNameStartingWith/produs")
#Query("FROM Product p WHERE p.produs LIKE %:name%")
public List<Product> findProductsbyNameStartingWith(#Param("name") String beginswith) {
List<Product> allproducts = new ArrayList<>( productService.findAll());
List<Product> productsListBeginWith = new ArrayList<>();
for (Product product : allproducts) {
if(product.getProdus().startsWith(String.valueOf(beginswith))){
productsListBeginWith.add(product);
}
}
return productService.findByNameStartingWith(productsListBeginWith);
}
}
the application structure

Answer 1

As your log mention
com.example.attentive2details.repositories.ProductRepository.findByNameStartingWith(java.util.List)!
No property name found for type Produs!
You wrote findByNameStartingWith but you don't have name field in your model. Jpa couldn't find this property in your entity class. You should put the name property in your model or change the query to another field for example findByProdusStartingWith or findByCaloriesStartingWith.

Answer 2

In addition to #Faramarz Afzali answer (which is actually correct), please note that the following #Query have no effect:
#RequestMapping("/api")
#RestController
public class ProductController {
(...)
#GetMapping("findProductbyNameStartingWith/produs")
#Query("FROM Product p WHERE p.produs LIKE %:name%")
public List<Product> findProductsbyNameStartingWith(#Param("name") String beginswith)
(...)
}
#Query must be used in Repository methods, not on a Controller or Service.