A component required a bean named 'userService' that could not be found.

最新推荐文章于 2025-03-21 16:41:24 发布

NewBeen1

最新推荐文章于 2025-03-21 16:41:24 发布

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创建springboot+dubbo在服务端

@Service
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> getAll() {
        List<User> users = userMapper.selectAll();
        System.out.println(users);
        return users;
    }
}

  <!--声明需要暴露的服务接口 -->
    <dubbo:service interface="com.user.service.UserService"
                  ref="userService" protocol="dubbo" timeout="5000"/>

    <dubbo:protocol name="dubbo" port="20000" ></dubbo:protocol>
    <dubbo:application name="user-server"/>
    <dubbo:registry address="zookeeper://192.168.56.128:2181"/>
    <dubbo:annotation package="com.user.service.impl" />

启动就报错

2018-06-08 09:53:13.785  INFO 6616 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-06-08 09:53:13.785  INFO 6616 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-06-08 09:53:13.785  INFO 6616 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-06-08 09:53:13.785  INFO 6616 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-06-08 09:53:15.202  WARN 6616 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.user.service.UserService': Cannot resolve reference to bean 'userService' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'userService' available
2018-06-08 09:53:15.222  WARN 6616 --- [           main] o.s.boot.SpringApplication               : Error handling failed (Error creating bean with name 'com.user.service.UserService': Cannot resolve reference to bean 'userService' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'userService' available)
2018-06-08 09:53:15.395 ERROR 6616 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 


***************************
APPLICATION FAILED TO START
***************************


Description:


A component required a bean named 'userService' that could not be found.




Action:


Consider defining a bean named 'userService' in your configuration.

配置文件不管怎么改都不行，后来在@service后面添加("userService")后服务正常运行

@Service("userService")
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> getAll() {
        List<User> users = userMapper.selectAll();
        System.out.println(users);
        return users;
    }
}

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