我在spring项目中遇到了bean创建问题，我不知道该怎么办。感谢您的关注!
这是我的控制台输出:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cartServiceImpl' defined in file [C:\Users\Ramil\eclipse-workspace\market-master\target\classes\market\service\impl\CartServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'productServiceImpl' defined in file [C:\Users\Ramil\eclipse-workspace\market-master\target\classes\market\service\impl\ProductServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productDAO': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:228) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1358) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at market.Application.main(Application.java:20) [classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'productServiceImpl' defined in file [C:\Users\Ramil\eclipse-workspace\market-master\target\classes\market\service\impl\ProductServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productDAO': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:228) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1358) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 19 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productDAO': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 33 common frames omitted
Caused by: java.lang.IllegalArgumentException: Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
at org.springframework.util.Assert.isTrue(Assert.java:118) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.data.repository.query.Parameters.assertEitherAllParamAnnotatedOrNone(Parameters.java:317) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.query.Parameters.<init>(Parameters.java:106) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaParameters.<init>(JpaParameters.java:45) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryMethod.createParameters(JpaQueryMethod.java:385) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryMethod.createParameters(JpaQueryMethod.java:58) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.query.QueryMethod.<init>(QueryMethod.java:81) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryMethod.<init>(JpaQueryMethod.java:103) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:78) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:574) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:567) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_232]
at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_232]
at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1051) ~[na:1.8.0_232]
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_232]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_232]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_232]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_232]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_232]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:566) ~[na:1.8.0_232]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:569) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_232]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:332) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.util.Lazy.getNullable(Lazy.java:212) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:121) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 44 common frames omitted
这是我的“CartServiceImpl.java”类
package market.service.impl;
import market.dao.CartDAO;
import market.domain.Cart;
import market.domain.CartItem;
import market.domain.Product;
import market.domain.UserAccount;
import market.exception.UnknownEntityException;
import market.service.CartService;
import market.service.ProductService;
import market.service.UserAccountService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
import java.util.Optional;
@Service
public class CartServiceImpl implements CartService {
private static final Logger log = LoggerFactory.getLogger(CartServiceImpl.class);
private final CartDAO cartDAO;
private final UserAccountService userAccountService;
private final ProductService productService;
public CartServiceImpl(CartDAO cartDAO, UserAccountService userAccountService,
ProductService productService) {
this.cartDAO = cartDAO;
this.userAccountService = userAccountService;
this.productService = productService;
}
@Transactional(propagation = Propagation.SUPPORTS)
@Override
public Cart getCartOrCreate(String userEmail) {
UserAccount account = userAccountService.findByEmail(userEmail);
Optional<Cart> cartOptional = cartDAO.findById(account.getId());
return cartOptional.orElseGet(() -> createCart(account));
}
private Cart createCart(UserAccount account) {
if (log.isDebugEnabled())
log.debug("Creating new cart for account #" + account.getId());
return cartDAO.save(new Cart(account));
}
@Transactional
@Override
public Cart addToCart(String userEmail, long productId, int quantity) throws
UnknownEntityException {
Cart cart = getCartOrCreate(userEmail);
Product product = productService.getProduct(productId);
if (product.isAvailable()) {
cart.update(product, quantity);
return cartDAO.save(cart);
} else {
return cart;
}
}
@Transactional
@Override
public Cart addAllToCart(String userEmail, List<CartItem> itemsToAdd) {
Cart cart = getCartOrCreate(userEmail);
boolean updated = false;
for (CartItem item : itemsToAdd) {
Optional<Product> product = productService.findOne(item.getProduct().getId());
if (product.isPresent() && product.get().isAvailable()) {
cart.update(product.get(), item.getQuantity());
updated = true;
}
}
return updated ? cartDAO.save(cart) : cart;
}
@Transactional
@Override
public Cart setDelivery(String userEmail, boolean deliveryIncluded) {
Cart cart = getCartOrCreate(userEmail);
cart.setDeliveryIncluded(deliveryIncluded);
return cartDAO.save(cart);
}
@Transactional
@Override
public Cart clearCart(String userEmail) {
Cart cart = getCartOrCreate(userEmail);
cart.clear();
return cartDAO.save(cart);
}
}
这是“ProductServiceImpl”类
package market.service.impl;
import market.dao.ProductDAO;
import market.domain.Distillery;
import market.domain.Product;
import market.domain.Region;
import market.exception.UnknownEntityException;
import market.service.DistilleryService;
import market.service.ProductService;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
@Service
public class ProductServiceImpl implements ProductService {
private final ProductDAO productDAO;
private final DistilleryService distilleryService;
public ProductServiceImpl(ProductDAO productDAO, DistilleryService distilleryService) {
this.productDAO = productDAO;
this.distilleryService = distilleryService;
}
@Transactional(readOnly = true)
@Override
public List<Product> findAll() {
return productDAO.findAll().stream()
.sorted(Comparator.comparing(Product::getName))
.collect(Collectors.toList());
}
@Transactional(readOnly = true)
@Override
public Page<Product> findAll(PageRequest request) {
return productDAO.findAll(request);
}
@Transactional(readOnly = true)
@Override
public Page<Product> findByDistillery(Distillery distillery, PageRequest request) {
return productDAO.findByDistilleryOrderByName(distillery, request);
}
@Transactional(readOnly = true)
@Override
public Page<Product> findByRegion(Region region, PageRequest request) {
return productDAO.findByRegionOrderByName(region, request);
}
@Transactional(readOnly = true)
@Override
public Page<Product> findByAvailability(String available, PageRequest request) {
Page<Product> pagedList;
if ("all".equals(available)) {
pagedList = productDAO.findAll(request);
} else {
boolean availability = Boolean.parseBoolean(available);
pagedList = productDAO.findByAvailableOrderByName(availability, request);
}
return pagedList;
}
@Transactional(readOnly = true)
@Override
public Product getProduct(long productId) throws UnknownEntityException {
return productDAO.findById(productId)
.orElseThrow(() -> new UnknownEntityException(Product.class, productId));
}
@Transactional(readOnly = true)
@Override
public Optional<Product> findOne(long productId) {
return productDAO.findById(productId);
}
@Transactional
@Override
public void create(Product product, String distilleryTitle) {
saveInternal(product, distilleryTitle, true);
}
@Transactional
@Override
public void update(Product product, String distilleryTitle) throws UnknownEntityException {
Product original = getProduct(product.getId());
product.setId(original.getId());
saveInternal(product, distilleryTitle, original.isAvailable()); // keep original availability
}
private void saveInternal(Product changed, String distilleryTitle, boolean available) {
Distillery distillery = distilleryService.findByTitle(distilleryTitle);
if (distillery != null) {
changed.setDistillery(distillery);
changed.setAvailable(available);
productDAO.save(changed);
}
}
@Override
public void updateAvailability(Map<Boolean, List<Long>> productIdsByAvailability) {
for (Map.Entry<Boolean, List<Long>> e : productIdsByAvailability.entrySet()) {
Boolean targetAvailability = e.getKey();
List<Product> productsToUpdate = e.getValue().stream()
.map(this::findOne)
.filter(Optional::isPresent)
.map(Optional::get)
.filter(product -> product.isAvailable() != targetAvailability)
.collect(Collectors.toList());
for (Product product : productsToUpdate) {
product.setAvailable(targetAvailability);
productDAO.save(product);
}
}
}
@Transactional
@Override
public void delete(long product) {
productDAO.deleteById(product);
}
}
以及“ProductDAO”类。我尝试将第二个 @Param 添加到 'findByRegionOrderByName' 中，但没有帮助
package market.dao;
import market.domain.Distillery;
import market.domain.Product;
import market.domain.Region;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import org.springframework.data.repository.query.Param;
public interface ProductDAO extends CrudRepository<Product, Long>, JpaRepository<Product, Long> {
Page<Product> findByDistilleryOrderByName(Distillery distillery, PageRequest request);
@Query(value = "SELECT p FROM Product p WHERE p.distillery IN (SELECT d FROM Distillery d WHERE d.region = :region) order by p.name")
Page<Product> findByRegionOrderByName(@Param("region") Region region, PageRequest request);
Page<Product> findByAvailableOrderByName(boolean available, PageRequest request);
}
最佳答案
问题是
IllegalArgumentException: Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
要修复它，只需删除 @Param 注释即可:
Page<Product> findByRegionOrderByName(Region region, PageRequest request);
关于java - Spring : 'org.springframework.beans.factory.UnsatisfiedDependencyException'。使用名称创建 bean 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60656834/