弹簧靴和两个罐子之间的@ComponentScan
2022-09-03 01:43:09
我有2个项目。一个是DAL项目,它使用弹簧neo4j API在neo4j DB上进行CRUD操作。此项目被打包为 jar 并包含在项目 #2 中。项目#2是一个Spring restful服务项目,它使用spring boot来打包和创建一个在嵌入式tomcat服务器上符文的可执行jar。
当尝试运行Spring boot为我创建的可执行jar时,我不断收到此异常。预计至少有 1 个 bean 有资格作为此依赖项的自动连接候选项。Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
根据我的阅读,如果我使用@ComponentScan我可以给出注释目录来查找。因此,我为它提供了我的服务项目的基本目录。我为它提供了我所包含的DAL的基本目录.jar但在这里仍然没有运气,这就是注释的样子。
摘自评论:
组件扫描声明
@ComponentScan({"com.foo.dal.*","com.foo.notification.*"})
堆栈跟踪:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pushCommandsController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.teradata.dal.example.PushRepository com.teradata.notification.rest.controller.PushCommandsController.repository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.teradata.dal.example.PushRepository] 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)}
更新:
基于@chrylis答案:对@ComponenetScan进行了更改
@ComponentScan({"com.teradata.notification","com.teradata.dal"})
磨合到:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'org.springframework.boot.autoconfigure.MessageSourceAutoConfiguration' is defined
有关 DAL 项目和服务项目的更多详细信息:
DAL项目:
服务项目: