Question

现在出现此错误：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-06-24 15:55:37.651 ERROR 6924 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deliveryController' defined in file [D:\Max\JavaWorks\Diplom\OnlineShop\target\classes\com\maximmalikov\onlineshop\rest\DeliveryController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deliveryService' defined in file [D:\Max\JavaWorks\Diplom\OnlineShop\target\classes\com\maximmalikov\onlineshop\service\DeliveryService.class]: Unsatisfied dependency expressed through constructor parameter 2; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ordersRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract com.maximmalikov.onlineshop.domain.Orders com.maximmalikov.onlineshop.repository.OrdersRepository.getByUserId(com.maximmalikov.onlineshop.domain.Users)! No property userId found for type Orders! Did you mean 'users'?
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:732) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at...

Process finished with exit code 0

我的pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.maximmalikov</groupId>
    <artifactId>onlineshop</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>onlineshop</name>
    <description>Onlineshop project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

主类，服务类和带有存储库的控制器类：

@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, WebMvcAutoConfiguration.class})
@SpringBootApplication
public class OnlineshopApplication {

    public static void main(String[] args) {
        SpringApplication.run(OnlineshopApplication.class, args);
    }

}

@Repository
public interface OrdersRepository extends JpaRepository<Orders,Long> {

    Orders getByOrderNumber(long orderNumber);

    Orders getByOrderDate(Date orderDate);

    Orders getByGoodsProductId(Goods productId);

    Orders getByGoodsProductName(Goods productName);

}

   @Service
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class OrdersService {

    private final OrdersRepository ordersRepository;

    private final GoodsRepository goodsRepository;

    private final UsersRepository usersRepository;

    private final DeliveryRepository deliveryRepository;

    private OrdersDTO fromOrders(Orders order) {
        if (order != null) {
            return OrdersDTO.builder()
                    .orderNumber(order.getOrderNumber())
                    .orderDate(order.getOrderDate())
                    .orderTime(order.getOrderTime())
                    .orderStatus(order.getOrderStatus())
                    .paymentMethod(order.getPaymentMethod())
                    .goods(order.getGoods() != null
                            ? order.getGoods().stream()
                            .map(Goods::getProductId)
                            .collect(Collectors.toList())
                            : null)
                    .users(order.getUsers() != null
                            ? order.getUsers().stream()
                            .map(Users::getUserId)
                            .collect(Collectors.toList())
                            : null)
                    .delivery(order.getDelivery().getOrderNumber())
                    .build();
        }
        return null;
    }

    private Orders fromDTO(OrdersDTO ordersDTO) {
        if (ordersDTO != null) {
            return Orders.builder()
                    .orderNumber(ordersDTO.getOrderNumber())
                    .orderDate(ordersDTO.getOrderDate())
                    .orderTime(ordersDTO.getOrderTime())
                    .orderStatus(ordersDTO.getOrderStatus())
                    .paymentMethod(ordersDTO.getPaymentMethod())
                    .goods(ordersDTO.getGoods() != null
                            ? goodsRepository.findAllById(ordersDTO.getGoods())
                            : null)
                    .users(ordersDTO.getUsers() != null
                            ? usersRepository.findAllById(ordersDTO.getUsers())
                            : null)
                    .delivery(ordersDTO.getDelivery() > 0L
                            ? deliveryRepository.getOne(ordersDTO.getDelivery())
                            : null)
                    .build();
        }
        return null;
    }

    public List<OrdersDTO> getAllOrders() {
        return ordersRepository.findAll().stream()
                .map(this::fromOrders)
                .collect(Collectors.toList());
    }

    @Transactional
    public OrdersDTO addOrder(OrdersDTO ordersDTO) {
        if (!ordersRepository.existsById(ordersDTO.getOrderNumber())) {
            return fromOrders(ordersRepository.saveAndFlush(fromDTO(ordersDTO)));
        }
        return null;
    }

    @Transactional
    public void deleteByOrderNumber(long orderNumber) {
        if (ordersRepository.existsById(orderNumber)) {
            ordersRepository.deleteById(orderNumber);
        }
    }

    @Transactional
    public OrdersDTO updateOrder(OrdersDTO ordersDTO) {
        if (ordersRepository.existsById(ordersDTO.getOrderNumber())) {
            Orders ordersTemp = ordersRepository.getOne(ordersDTO.getOrderNumber());
            ordersTemp.setOrderDate(ordersDTO.getOrderDate());
            ordersTemp.setOrderTime(ordersDTO.getOrderTime());
            ordersTemp.setOrderStatus(ordersDTO.getOrderStatus());
            ordersTemp.setPaymentMethod(ordersDTO.getPaymentMethod());
            return fromOrders(ordersRepository.saveAndFlush(ordersTemp));
        }
        return null;
    }

    public OrdersDTO getByOrderNumber(long orderNumber) {
        if (ordersRepository.existsById(orderNumber)) {
            return fromOrders(ordersRepository.getByOrderNumber(orderNumber));
        }
        return null;
    }

    public OrdersDTO getByOrderDate(Date orderDate) {
        return fromOrders(ordersRepository.getByOrderDate(orderDate));
    }

    public OrdersDTO getByProductId(Goods product) {
        return fromOrders(ordersRepository.getByGoodsProductId(goodsRepository.getByProductId(product.getProductId())));
    }

    public OrdersDTO getByProductName(Goods product) {
        return fromOrders(ordersRepository.getByGoodsProductName(goodsRepository.getByProductName(product.getProductName())));
    }

}

   @RestController
@RequestMapping("/orders")
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class OrdersController {

    private final OrdersService ordersService;
    private final GoodsRepository goodsRepository;


    @GetMapping
    public List<OrdersDTO> getAll() {
        return ordersService.getAllOrders();
    }

    @PostMapping
    public ResponseEntity<OrdersDTO> addOrder(@RequestBody OrdersDTO ordersDTO) {
        OrdersDTO ordersDTO1 = ordersService.addOrder(ordersDTO);
        return ResponseEntity.ok(ordersDTO1);
    }

    @DeleteMapping("/{order_number}")
    public ResponseEntity<Void> deleteOrder(@PathVariable(value = "order_number") long orderNumber) {
        try {
            ordersService.deleteByOrderNumber(orderNumber);
            return ResponseEntity.ok().build();
        } catch (Exception e) {
            return ResponseEntity.badRequest().build();
        }
    }

    @PutMapping
    public ResponseEntity<OrdersDTO> updateOrder(@RequestBody OrdersDTO ordersDTO) {
        OrdersDTO ordersDTO1 = ordersService.updateOrder(ordersDTO);
        return ResponseEntity.ok(ordersDTO1);
    }

    @GetMapping("/{order_number}")
    public ResponseEntity<OrdersDTO> getOrderByNumber(@PathVariable(value = "order_number") long orderNumber) {
        return ResponseEntity.ok(ordersService.getByOrderNumber(orderNumber));
    }

    @GetMapping("/{order_date}")
    public ResponseEntity<OrdersDTO> getOrderByDate(@PathVariable(value = "order_date") Date orderDate) {
        return ResponseEntity.ok(ordersService.getByOrderDate(orderDate));
    }

    @GetMapping("/goods/{product_id}")
    public ResponseEntity<OrdersDTO> getOrderByProductId(@PathVariable(value = "product_id") long productId) {
        return ResponseEntity.ok(ordersService.getByProductId(goodsRepository.getByProductId(productId)));
    }

    @GetMapping("/goods/{product_name}")
    public ResponseEntity<OrdersDTO> getOrderByProductName(@PathVariable(value = "product_name") String productName) {
        return ResponseEntity.ok(ordersService.getByProductName(goodsRepository.getByProductName(productName)));
    }


}

在application.properties中配置数据库连接：

spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://localhost:3306/onlineshopbd?useSSL=false
spring.datasource.username=root
spring.datasource.password=malikovmaxim1997

spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect
spring.jpa.open-in-view = true

该项目使用Spring-Boot配置，并且所有配置均仅通过注释进行配置，也就是说，我在Internet上也遇到了很多相同的问题，但是所有bin设置都在xml文件中配置。此方法不适用于该项目。帮助您了解此错误以及如何在不使用xml的情况下调整垃圾箱。

Answer 1

看着你pom.xml我注意到你有spring-boot-starter-data-jpa和hibernate-entitymanager version 5.2.17.Final

spring-boot-starter-data-jpa将获取您需要的所有休眠依赖项

因此从pom.xml中删除此依赖项，它应该可以工作

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.2.17.Final</version>
    </dependency>

编辑1：

更改此

@Service
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class CharacteristicsService {

    private final GoodsRepository goodsRepository;

到

 @Service
 public class CharacteristicsService {

      @AutoWired
      private final GoodsRepository goodsRepository;

还有

@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, WebMvcAutoConfiguration.class})
@SpringBootApplication
public class OnlineshopApplication {

我不知道为什么您排除了@EnableAutoConfiguration，但是您可以尝试一下

Answer 2

一切正常，谢谢大家的帮助。我通过删除@EnableAutoConfiguration异常解决了该问题。而且在OrdersRepository中有一个写得不正确的方法，需要分别从服务和控制器中删除该方法。

Answer 3

伙计，看起来你缺少一些 spring 注释，在我的情况下，它是我的存储库类上的一个简单的 @Repository 标记...

我在这里找到了一些信息： https://www.baeldung.com/spring-unsatisfied-dependency

还有另一种情况，当你有一个以上的 bean 满足一个操作时.. 对于这种情况，您可以在您的应用程序类中添加此注释：

@SpringBootApplication
@ComponentScan(basePackages = {"com.example.demo.yourpackage"}) //this line**
public class SpringDependenciesExampleApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringDependenciesExampleApplication.class, args);
    }
}

创建bean时出错。通过构造函数参数0表示的不满意依赖性；

3 个答案: