Java 春季外部项目中出现的自动布线类

大家好，我有两个项目，一个是rest模块，它有端点，

web.xml

，另一个是

dispatcher servlet.xml

，我有另一个项目，它有业务逻辑，并作为依赖项添加到rest模块。当我在rest模块的业务项目中自动连接一个bean时，我得到的是

org.springframework.beans.factory.BeanCreationException

。但是rest模块中的bean是自动连接的

业务模块 com.test.service--packagename BaseService.java

rest模块 com.test.controller---packagename BaseController.java

现在，我在BaseController.java和dispatcher-servlet.xml中自动连接BaseService.java，如果我提到它是自动连接BaseService.java bean的话 它不会识别@RestController，因为BaseController.java的基本包名是com.test——如果我给出

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private ; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1218)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:778)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:666)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:632)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:680)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:551)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:492)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:161)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    ... 91 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private  nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:573)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 109 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:1380)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1126)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1021)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
    ... 111 more

---

Rest模块无法在业务模块中看到Bean，您可能需要执行以下操作：

@Configuration
@ComponentScan(basePackages = "org.something.business")
public class BusinessConfig {

}


@Configuration
@Import(BusinessConfig.class)
@ComponentScan(basePackages = "org.something.rest")
public class RestConfig {

}

---

嗨，加布腿。。谢谢你的回答。。就我而言，两者都有相同的包裹名Hi Gableag。。谢谢你的回答。。在我的情况下，两者都有相同的包名，我正在尝试自动连接我的服务接口，该接口位于com.test.one.Service中，而我的控制器位于com.test.one.controller中，因此我将基本包组件扫描设置为“com.test.one”。如果我将其命名为com.test.one，则它不是自动连线，但如果我将其命名为com.test.one.Service，则它是自动连线服务接口，但当我尝试到达终点时，我得到一个404，因为控制器所在的包当前未扫描，控制器配置具有

@ComponentScan（basePackages=“com.test.one.Controller”）

和服务配置有

@ComponentScan（basePackages=“com.test.one.Service”）

？它仍然不工作？只是为了确保我理解你说的。哦，我想我理解你的意思，试试这个

@ComponentScan（basePackages={“com.test.one.Controller”，“com.test.one.Service”}）

。如果不是这样，你能用你的文件结构编辑你的问题吗？嗨，Gabbleg…我用包结构编辑了我的问题。你能添加整个BeanCreationException吗？嗨，Gabbleg…我已经更新了堆栈跟踪，在下面的线程中，我也提到了控制器和服务类，你呢您的服务有任何实现吗？如果有，该实现是一个Bean吗？如果没有，您应该添加如下内容：

@Bean public ibaservice getService（）{return new serviceemplementation（）；}

在您的业务配置中。或者，如果只有一个实现，您可以在类上方使用“@Service”。它起作用了，谢谢：-）…我有实现类，但我没有注释它..很乐意帮助：）

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private ; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1218)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:778)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:666)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:632)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:680)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:551)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:492)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:161)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    ... 91 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private  nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:573)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 109 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [] 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:1380)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1126)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1021)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
    ... 111 more