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When @Autowired doesn't work. There are several reasons @Autowired might not work. When a new instance is created not by Spring but by for example manually calling a constructor, the instance of the class will not be registered in the Spring context and thus not available for dependency injection.
The @Autowired annotation provides more fine-grained control over where and how autowiring should be accomplished. The @Autowired annotation can be used to autowire bean on the setter method just like @Required annotation, constructor, a property or methods with arbitrary names and/or multiple arguments.
@Inject and @Autowired both annotations are used for autowiring in your application. @Inject annotation is part of Java CDI which was introduced in Java 6, whereas @Autowire annotation is part of spring framework. Both annotations fulfill same purpose therefore, anything of these we can use in our application.
I had the same problem with IntelliJ IDEA 13.1.4 I solved it by removing the Spring facet (File->Project Structure) and leaving it to just show "Detection".
I fixed it by adding the supress warning:
@SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection")
@Autowired
private ....
If you know that the bean exists and its just a problem of the inspections, then just add the following before the variable declaration:
@SuppressWarnings("SpringJavaAutowiringInspection")
@Inject MyClass myVariable;
Sometimes IntelliJ cannot resolve if a bean has been declared, for example when the bean is included conditionally and the condition resolution happens dynamically at runtime. In such a case it seems the static code analyzer of IntelliJ cannot detect the bean.
Got the same error here!
It seems the Intellij cannot verify if the class implementation is a @Service or @Component.
Solve it just changing from Error to Warning(Pressing Alt + Enter).
Remove .iml file from all your project module and next go to File -> Invalidate Caches/Restart
File -> ProjectStructure -> Modules -> +(in central column) -> Spring ->OK
I had the same problem. I solved it by adding the Spring facet (File->Project Structure) for each relevant module, and then add the configuration files. For some projects (spring mvc), the config files where detected automatically. However, for a jar project, I had to add the configuration files manually.
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