org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为“restaurantController”的bean时出错

Question

因此，我正在为我的应用程序使用 Spring Boot 和 MongoDB 构建 REST 服务，昨天我让它运行并连接到数据库。今天我去启动它，但它不断向我返回有关不满足依赖关系的错误。这是代码：

GastrorateApplication.java：

    @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
    @EnableMongoRepositories
    public class GastrorateApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(GastrorateApplication.class, args);
        }
    }

RestaurantController.java：

@Slf4j
@RestController
@RequestMapping(value = REST_URL)
public class RestaurantController {
    public static final String SAVE_OR_UPDATE_RESTAURANT = "/restaurants/save-or-update";
    public static final String FIND_ALL_RESTAURANTS = "/restaurants/find";
    public static final String FIND_RESTAURANT_BY_NAME = "/restaurants/find/{name}";
    public static final String FIND_RESTAURANT_BY_RATING = "/restaurants/find/rating/{rating}";
    public static final String DELETE_RESTAURANT = "/restaurants/delete/{id}";

    @Autowired
    private RestaurantManager restaurantManager;

    @PostMapping(value = SAVE_OR_UPDATE_RESTAURANT)
    @ResponseStatus(HttpStatus.CREATED)
    public Restaurant createRestaurant(@RequestBody Restaurant restaurant){
        return restaurantManager.saveOrUpdateRestaurant(restaurant);
    }

    @GetMapping(value = FIND_ALL_RESTAURANTS)
    public List<Restaurant> getRestaurants(){
        return restaurantManager.findAllRestaurants();
    }

    @GetMapping(value = FIND_RESTAURANT_BY_NAME)
    public Restaurant getRestaurant(@PathVariable String name){
        return restaurantManager.getRestaurantByName(name);
    }

    @GetMapping(value = FIND_RESTAURANT_BY_RATING)
    public List<Restaurant> getRestaurantsByRating(@PathVariable double rating){
        return restaurantManager.getRestaurantByRating(rating);
    }

    @DeleteMapping(value = DELETE_RESTAURANT)
    public String deleteTask(@PathVariable String id){
        return restaurantManager.deleteTask(id);
    }
}

RestaurantManager.java：

public class RestaurantManager {
    @Autowired
    private RestaurantRepository restaurantRepository;

    @Transactional
    public Restaurant saveOrUpdateRestaurant(Restaurant restaurant){
        restaurant.setId(UUID.randomUUID().toString().split("-")[0]);
        return restaurantRepository.save(restaurant);
    }
    @Transactional
    public List<Restaurant> findAllRestaurants(){
        return restaurantRepository.findAll();
    }
    @Transactional
    public Restaurant getRestaurantByName(String name){
        return restaurantRepository.findRestaurantByName(name);
    }
    @Transactional
    public List<Restaurant> getRestaurantByRating(double rating){
        return restaurantRepository.findByRestaurantRating(rating);
    }
    @Transactional
    public String deleteTask(String restaurantId){
        restaurantRepository.deleteById(restaurantId);
        return "Restaurant " + restaurantId + " deleted from database!";
    }
}

RestaurantRepository.java：

@Repository
public interface RestaurantRepository extends MongoRepository<Restaurant, String> {
    @Query("{name:'?0'}")
    Restaurant findRestaurantByName(String name);
    List<Restaurant> findByRestaurantRating(double rating);
}

餐厅.java：

@Builder
@AllArgsConstructor
@NoArgsConstructor
@Document(collection = "restaurants")
@Data
public class Restaurant {
    @Id
    private String id;
    private String name;
    private String address;
    private String city;
    private String country;
    private Rating firstRating;
    private Rating secondRating;
    private double restaurantRating = firstRating.restaurantRating + secondRating.restaurantRating;
}

这是完整的错误消息：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'restaurantController': Unsatisfied dependency expressed through field 'restaurantManager': Error creating bean with name 'restaurantManager': Unsatisfied dependency expressed through field 'restaurantRepository': Error creating bean with name 'restaurantRepository' defined in gastro.repository.RestaurantRepository defined in @EnableMongoRepositories declared on GastrorateApplication: Cannot resolve reference to bean 'mongoTemplate' while setting bean property 'mongoOperations'
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:787) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:767) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:145) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:508) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1419) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:975) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:959) ~[spring-context-6.1.4.jar:6.1.4]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:624) ~[spring-context-6.1.4.jar:6.1.4]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.2.3.jar:3.2.3]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-3.2.3.jar:3.2.3]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456) ~[spring-boot-3.2.3.jar:3.2.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:334) ~[spring-boot-3.2.3.jar:3.2.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354) ~[spring-boot-3.2.3.jar:3.2.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-3.2.3.jar:3.2.3]
    at gastro.GastrorateApplication.main(GastrorateApplication.java:13) ~[classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'restaurantManager': Unsatisfied dependency expressed through field 'restaurantRepository': Error creating bean with name 'restaurantRepository' defined in gastro.repository.RestaurantRepository defined in @EnableMongoRepositories declared on GastrorateApplication: Cannot resolve reference to bean 'mongoTemplate' while setting bean property 'mongoOperations'
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:787) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:767) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:145) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:508) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1419) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1443) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1353) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:784) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 20 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restaurantRepository' defined in gastro.repository.RestaurantRepository defined in @EnableMongoRepositories declared on GastrorateApplication: Cannot resolve reference to bean 'mongoTemplate' while setting bean property 'mongoOperations'
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:377) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:135) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1685) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1434) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1443) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1353) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:784) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 34 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoTemplate' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoDatabaseFactoryDependentConfiguration.class]: Unsatisfied dependency expressed through method 'mongoTemplate' parameter 0: Error creating bean with name 'mongoDatabaseFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoDatabaseFactoryConfiguration.class]: Unsatisfied dependency expressed through method 'mongoDatabaseFactory' parameter 0: Error creating bean with name 'mongo' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoAutoConfiguration.class]: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception with message: com/mongodb/internal/connection/StreamFactory
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:542) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1335) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:562) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:365) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 47 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoDatabaseFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoDatabaseFactoryConfiguration.class]: Unsatisfied dependency expressed through method 'mongoDatabaseFactory' parameter 0: Error creating bean with name 'mongo' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoAutoConfiguration.class]: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception with message: com/mongodb/internal/connection/StreamFactory
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:542) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1335) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:562) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1443) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1353) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:907) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:785) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 57 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongo' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoAutoConfiguration.class]: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception with message: com/mongodb/internal/connection/StreamFactory
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:639) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1335) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:562) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1443) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1353) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:907) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:785) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 71 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception with message: com/mongodb/internal/connection/StreamFactory
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:177) ~[spring-beans-6.1.4.jar:6.1.4]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:647) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 85 common frames omitted
Caused by: java.lang.NoClassDefFoundError: com/mongodb/internal/connection/StreamFactory
    at com.mongodb.client.MongoClients.create(MongoClients.java:108) ~[mongodb-driver-sync-5.0.0.jar:na]
    at org.springframework.boot.autoconfigure.mongo.MongoClientFactorySupport.createMongoClient(MongoClientFactorySupport.java:50) ~[spring-boot-autoconfigure-3.2.3.jar:3.2.3]
    at org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration.mongo(MongoAutoConfiguration.java:59) ~[spring-boot-autoconfigure-3.2.3.jar:3.2.3]
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:577) ~[na:na]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:140) ~[spring-beans-6.1.4.jar:6.1.4]
    ... 86 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.mongodb.internal.connection.StreamFactory
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na]
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na]
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
    ... 92 common frames omitted

尝试像平常一样运行我的服务，但出现意外错误。

Answer 1

要注入依赖项，它必须是 Spring bean。您需要通过使用 @Component、构造型注释或使用 spring 配置类来创建 bean 并返回 bean 来使您的 RestaurantManager 成为 spring bean。

我认为你还应该仔细检查是否可以找到这个类com/mongodb/internal/connection/StreamFactory。您的类路径可能没有找到导致此异常的此类。您可以尝试通过重新加载依赖项并检查依赖项与 spring 之间的兼容性来解决此问题。

如果我可以提供建议，请使用构造函数注入而不是字段注入。 https://www.baeldung.com/java-spring-field-injection-cons