Question

我有这个课程：

IUserRepository（对于CRUD）

@Transactional
public interface IUserRepository extends  MongoRepository<User, String>,
    UserRepositoryCustom {
}

UserRepositoryCustom（For Custom）

public interface UserRepositoryCustom {
 public User getUserByEmail(String email); 
 public User getUserByEmailAndPassword(String email, String password); 
 public List<User> getOnlineUsers();
}

UserRepositoryImpl（自定义IMPL）

public class UserRepositoryImpl {

    @Autowired
    private MongoTemplate mongoTemplate;

    public User getUserByEmail(String email) {
        Query searchUserQuery = new Query(Criteria.where("email").is(email));
        return mongoTemplate.findOne(searchUserQuery, User.class);
    }

    public User getUserByEmailAndPassword(String email, String password) {
        Query searchUserQuery = new Query(Criteria.where("email").is(email)
                .andOperator(Criteria.where("password").is(password)));
        return mongoTemplate.findOne(searchUserQuery, User.class);
    }

    public List<User> getOnlineUsers() {
        Query searchUserQuery = new Query(Criteria.where("online").is(true));
        return mongoTemplate.find(searchUserQuery, User.class);
    }
}

CRUD实施服务：

@Repository("userService")
@Transactional
public class UserService {

    @Autowired
    private IUserRepository userRepository;

    public List<User> getAll() {
        return userRepository.findAll();
    }

    public User getUser(String deviceRegistrationID){
        return userRepository.findOne(deviceRegistrationID);
    }

    public void addUser(User user){
        userRepository.save(user);
    }

    public User editUser(User user){

         User findUser = getUser(user.getDeviceRegistrationID());
         findUser.setLatitude(user.getLatitude());
         findUser.setLongitude(user.getLongitude());
         findUser.setOnline(true);

         return userRepository.save(findUser);       
    }
}

当我启动服务器时出现此错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.extendsme.service.IUserRepository com.extendsme.service.UserService.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': FactoryBean threw exception on object creation; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property get found for type com.extendsme.model.User
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1146)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.extendsme.service.IUserRepository com.extendsme.service.UserService.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': FactoryBean threw exception on object creation; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property get found for type com.extendsme.model.User
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1146)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:444)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:418)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:546)
    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:303)
    ... 22 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.extendsme.service.IUserRepository com.extendsme.service.UserService.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': FactoryBean threw exception on object creation; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property get found for type com.extendsme.model.User
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:517)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
    ... 35 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': FactoryBean threw exception on object creation; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property get found for type com.extendsme.model.User
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:149)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1468)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:307)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:912)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:489)
    ... 37 more
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property get found for type com.extendsme.model.User
    at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:74)
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:325)
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:351)
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:351)
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:305)
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:269)
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:240)
    at org.springframework.data.repository.query.parser.Part.<init>(Part.java:75)
    at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:189)
    at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:279)
    at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:259)
    at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:68)
    at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.<init>(PartTreeMongoQuery.java:47)
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:128)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:304)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:161)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.getObject(RepositoryFactoryBeanSupport.java:162)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.getObject(RepositoryFactoryBeanSupport.java:44)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
    ... 45 more

仅当我的CRUD界面实现我的自定义界面时才会出现错误。怎么了？

Answer 1

我认为问题在于类和接口的名称，当您使用spring数据时，您需要遵循一些命名规则才能被框架正确理解。

这没关系

public interface IUserRepository extends  MongoRepository<User, String>, UserRepositoryCustom {

这也是正确的<>

public interface UserRepositoryCustom {

但是实现类的名称有问题，应该是

public class IUserRepositoryImpl implements UserRepositoryCustom {

然后spring jpa将工作，并将存储库注入服务。

使用Spring MongoDB模板定制mongoDB查询

1 个答案: