Spring @Autowired无法使用基于注释的配置

我想创建一个基于注释的Spring MVC项目。编译正确，但在部署抛出错误Spring @Autowired无法使用基于注释的配置

11:00:24,788 WARN [org.jboss.as.ee] (MSC service thread 1-5) JBAS011006: Not installing optional component org.springframework.http.server.ServletServerHttpAsyncRequestControl due to an exception (enable DEBUG log level to see the cause) 
11:00:24,788 WARN [org.jboss.as.ee] (MSC service thread 1-5) JBAS011006: Not installing optional component org.springframework.web.context.request.async.StandardServletAsyncWebRequest due to an exception (enable DEBUG log level to see the cause) 
11:00:24,788 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-5) JBAS010404: Deploying non-JDBC-compliant driver class com.mysql.jdbc.Driver (version 5.1) 
11:00:24,803 WARN [org.jboss.weld.deployer] (MSC service thread 1-5) JBAS016012: Deployment deployment "SpringRepository.war" contains CDI annotations but no bean archive was found (no beans.xml or class with bean defining annotations). 
11:00:24,803 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-5) JBAS010417: Started Driver service with driver-name = SpringRepository.war_com.mysql.jdbc.Driver_5_1 
11:00:25,194 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./SpringRepository: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./SpringRepository: Failed to start service 
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.2.Final.jar:1.2.2.Final] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.7.0_25] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.7.0_25] 
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.7.0_25] 
Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restControllerImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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 io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:222) 
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:87) 
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:72) 
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final] 
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final] 
    ... 3 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restControllerImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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$1.getObject(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
    at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:173) 
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:193) 
    ... 7 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$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) 
    ... 22 more 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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) 
    ... 24 more 

11:00:25,210 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 1) JBAS014613: Operation ("deploy") failed - address: ([("deployment" => "SpringRepository.war")]) - failure description: {"JBAS014671: Failed services" => {"jboss.undertow.deployment.default-server.default-host./SpringRepository" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./SpringRepository: Failed to start service 
    Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restControllerImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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)} 
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restControllerImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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)} 
    Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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)} 
    Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.spring.service.EmployeeService] 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)}"}} 
11:00:25,241 INFO [org.jboss.as.server] (DeploymentScanner-threads - 1) JBAS018559: Deployed "SpringRepository.war" (runtime-name : "SpringRepository.war") 
11:00:25,241 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 1) JBAS014774: Service status report 
JBAS014777: Services which failed to start:  service jboss.undertow.deployment.default-server.default-host./SpringRepository: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./SpringRepository: Failed to start service

这是我定义2豆

这是我RestController在那里我有自动装配的EmployeeService

@Controller 
@ComponentScan("com.spring.service") 
@RequestMapping("/employee") 
public class RestControllerImpl { 

    @Autowired 
    EmployeeService employeeService; 


    @RequestMapping(value = "/getEmployee", method = RequestMethod.GET) 
    @ResponseBody 
    public List<Employee> getEmployee(){ 

     return employeeService.findAll(); 

    };

我的AppConfig类这是我的员工服务

@Service 
public interface EmployeeService { 

    public List<Employee> findAll(); 

}

及其实施

public class EmployeeServiceImpl implements EmployeeService{ 

    @Resource 
    private EmployeeRepository employeeRepository; 


    @Override 
    @Transactional 
    public List<Employee> findAll() { 
     return employeeRepository.findAll(); 
    } 

}

我认为问题是，的EmployeeService不作为@Bean

你可以在

https://github.com/ashishkumar9211/SpringRestHibernateRepository

来源

2015-09-02 Ashish451

对于初学者来说，控制器上的'@ ComponentScan'无所事事，它只能在'@ Configuration'类中工作。 '@ Service'必须在实现而不是接口上。从你的栈中判断事情可能更糟糕，因为你可能（并且最终）会以重复的实例结束（导致不同的异常），因为“@Service”和“@ Controller”。要么扫描组件，要么使用'@ Bean'方法不要同时执行这两个操作。 –

那么我按照你的建议做了更改。工作正常。谢谢 – Ashish451

变化发现全码：

@Bean 
public EmployeeServiceImpl EmployeeServiceImpl() { 
    System.out.println("Service"); 
    return new EmployeeServiceImpl(); 

}

至

@Bean 
public EmployeeService EmployeeServiceImpl() { 
    System.out.println("Service"); 
    return new EmployeeServiceImpl(); 

}

因此您使用自动编程接口。

并将@Service注释添加到接口的实现中，并将其从接口中删除。

接口：

public interface EmployeeService { 

    public List<Employee> findAll(); 

}

实现：

@Service 
public class EmployeeServiceImpl implements EmployeeService{ 

    @Resource 
    private EmployeeRepository employeeRepository; 


    @Override 
    @Transactional 
    public List<Employee> findAll() { 
     return employeeRepository.findAll(); 
    } 

}

来源

2015-09-02 05:42:59 Jens

这不会有什么区别，返回类型是实现还是接口无关紧要。 –

正如@ M.Deinum所说......它没有任何区别...... – Ashish451

@ Ashish451你有没有尝试过所有的解决方案？ – Jens

由于您的AppConfig类被注释为@ComponentScan（ “com.spring”） 可以删除@ComponentScan在RestController

@Controller 
@RequestMapping("/employee") 
public class RestControllerImpl { 
    /* your code */ 
}

并从接口中删除@Service注释并将其添加到serviceimpl类。

按日志容器未能注入“的EmployeeService”

org.springframework.beans.factory.BeanCreationException：错误创建名为“restControllerImpl”豆：自动装配依赖注入失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装入字段：com.spring.service.EmployeeService com.spring.controller.RestControllerImpl.employeeService;嵌套的异常是

来源

2016-01-28 15:45:48

Spring @Autowired无法使用基于注释的配置

回答

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