Java 未找到依赖项类型的符合条件的bean_Java_Spring_Web_Service_Autowired

Java 未找到依赖项类型的符合条件的bean

java spring web service

Java 未找到依赖项类型的符合条件的bean,java,spring,web,service,autowired,Java,Spring,Web,Service,Autowired,我正在尝试编写基本的spring项目。但是，我在通过服务使用“@Autowired”时遇到了一个大问题。我没有发现问题，错误如下： org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testeRS': Injection of autowired dependencies failed; nested exception is org.springframework

我正在尝试编写基本的spring项目。但是，我在通过服务使用“@Autowired”时遇到了一个大问题。我没有发现问题，错误如下：

   org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testeRS': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: br.com.lazycat.service.TesteServiceImpl br.com.lazycat.endpoint.TesteRS.testeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [br.com.lazycat.service.TesteServiceImpl] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1241)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1154)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1041)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4969)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5255)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: br.com.lazycat.service.TesteServiceImpl br.com.lazycat.endpoint.TesteRS.testeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [br.com.lazycat.service.TesteServiceImpl] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    ... 29 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [br.com.lazycat.service.TesteServiceImpl] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1103)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:963)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
    ... 31 more

mar 05, 2015 11:23:09 PM org.apache.catalina.core.StandardContext loadOnStartup
GRAVE: Servlet /lazycat threw load() exception
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [br.com.lazycat.service.TesteServiceImpl] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1103)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:963)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1241)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1154)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1041)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4969)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5255)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

我的应用配置：

package br.com.lazycat.config;

import java.util.Properties;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages={"br.com.lazycat.repository"})
@ComponentScan({"br.com.lazycat.endpoint", "br.com.lazycat.config", "br.com.lazycat.service", "br.com.lazycat.model", "br.com.lazycat.repository"} )

public class AppConfig {

    private static final String DATABASE_DRIVER = "org.postgresql.Driver";
    private static final String DATABASE_URL = "jdbc:postgresql://localhost:5432/postgres";
    private static final String DATABASE_USERNAME = "postgres";
    private static final String DATABASE_PASSWORD = "123qwe";

    private static final String HIBERNATE_DIALECT = "org.hibernate.dialect.PostgreSQLDialect";
    private static final String HIBERNATE_SHOW_SQL = "true";
    private static final String ENTITYMANAGER_PACKAGES_TO_SCAN = "br.com.lazycat.model";

    public static final String USER_CACHE = "userRestCache";

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();

        dataSource.setDriverClassName(DATABASE_DRIVER);
        dataSource.setUrl(DATABASE_URL);
        dataSource.setUsername(DATABASE_USERNAME);
        dataSource.setPassword(DATABASE_PASSWORD);

        return dataSource;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

        HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        vendorAdapter.setDatabase(Database.POSTGRESQL);
        vendorAdapter.setGenerateDdl(true);
        vendorAdapter.setShowSql(true);

        LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
        factory.setJpaVendorAdapter(vendorAdapter);
        factory.setDataSource(dataSource());
        factory.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);

        return factory;
    }

    @Bean
    public LocalSessionFactoryBean sessionFactory() {
        LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
        sessionFactoryBean.setDataSource(dataSource());
        sessionFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);
        sessionFactoryBean.setHibernateProperties(hibProperties());
        return sessionFactoryBean;
    }

    private Properties hibProperties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", HIBERNATE_DIALECT);
        properties.put("hibernate.show_sql", HIBERNATE_SHOW_SQL);
        return properties;  
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
          transactionManager.setEntityManagerFactory(
           entityManagerFactory().getObject() );
          return transactionManager;
        /*HibernateTransactionManager transactionManager = new HibernateTransactionManager();
        transactionManager.setSessionFactory(sessionFactory().getObject());
        return transactionManager;*/
    }
}

RestController：

@RestController
@RequestMapping(value = "/teste", produces = "application/json")
public class TesteRS {

    @Autowired
    TesteServiceImpl testeService;

    @RequestMapping(method=RequestMethod.POST, value="/piroca/{nome}")
    private void testPut(@PathVariable("nome") String nome) {
        testeService.save(nome);
    }
}

服务接口

public interface TesteService {

    public void save(String nome);

}

服务

@Service("testeService")
@Transactional
public class TesteServiceImpl implements TesteService {

    @Autowired
    TesteRepository testeRepository;

    public void save(String nome) {
        Teste tst = new Teste();
        tst.setName(nome);
        System.out.println(tst);
        testeRepository.save(tst);
    }
}

存储库

@Repository
public interface TesteRepository extends JpaRepository<Teste, Integer>{ 

}

@存储库
公共接口测试库扩展了JpaRepository{
}

我感谢你的帮助。谢谢

从

@Service

中删除限定符。将

@Service（“testeService”）

更改为简单的

@Service

不要直接注入

TesteServiceImpl

。将

@Autowired-TesteServiceImpl-testeService

更改为

@Autowired-testeService-testeService

@Service（）

将

分配给Spring创建的bean实例。除非您有一个组件的多个实现，否则这是不必要的。例如，如果您有：

interface UserRepository {}
class UserLdapRepository implements UserRepository {}
class UserSamlRepository implements UserRepository {}

Spring组件注册表中有两个组件实现了

UserRepository

。然后，如果您想

@Autowired UserRepository UserRepository

，那么在

UserRepository

的实现中应该自动连接的地方会存在歧义。在这种情况下，

@Service（）

将非常有用

当类实现接口时，最好是注入接口而不是类。如果SpringAOP与它的默认配置一起使用，这将成为必需的。在您的情况下，

@EnableTransactionManagement

触发AOP，该AOP在其默认配置中创建接口代理。因此，将创建一个

TesteService

（而不是

TesteServiceImpl

）代理。因此，Spring正确地抱怨在您尝试注入它时没有

TesteServiceImpl

实例。

在您的控制器中尝试一下。您通常自动连接到接口类型，而不是impl

public class TesteRS {

    @Autowired
    @Qualifier("testeService")
    TesteService  testeService;

谢谢你的帮助。我更改了代码，但错误仍然存在，对我来说很好。是您的代码和我的更改。使用

mvn清洁测试运行单元测试

成功通过。您确定您的代码中没有任何其他错误吗？请将您的代码与工作解决方案进行比较，或者发布重现您的问题的最小示例。