@Autowired - No Qualifying Bean of Type Found for Dependency

@Autowired - No qualifying bean of type found for dependency

You should autowire interface AbstractManager instead of class MailManager. If you have different implemetations of AbstractManager you can write @Component("mailService") and then @Autowired @Qualifier("mailService") combination to autowire specific class.

This is due to the fact that Spring creates and uses proxy objects based on the interfaces.

Spring @Autowire fails with No qualifying bean of type found for dependency error

The problem got solved by itself i suppose.

What i did:

  • I annotated the ReportServiceImpl2.java class with @Service("test2")
  • I created a new ReportService implementation called ReportServiceImpl3.java
  • I annotated this class with @Service("test3")
  • In the controller i used @Qualifier("test2") annotation
    After i did this it works. Moreover i deleted ReportServiceImpl3.java and i came back to the previous state of the code and it works now.

I suppose it was an IDE(Eclipse) problem which got solved by itself.

@Autowired - No qualifying bean of type found for dependency at least 1 bean

You don't have to necessarily provide name and Qualifier. If you set a name, that's the name with which the bean is registered in the context. If you don't provide a name for your service it will be registered as uncapitalized non-qualified class name based on BeanNameGenerator. So in your case the Implementation will be registered as employeeServiceImpl. So if you try to autowire with that name, it should resolve directly.

private EmployeeService employeeServiceImpl;

@RequestMapping("/employee")
public String employee() {
this.employeeService.fetchAll();
return "employee";
}

@Autowired(required = true)
public void setEmployeeService(EmployeeService employeeServiceImpl) {
this.employeeServiceImpl = employeeServiceImpl;
}

@Qualifier is used in case if there are more than one bean exists of same type and you want to autowire different implementation beans for various purposes.

No qualifying bean of type [HrEmployeesReportOutput] found for dependency: expected at least 1 bean

You should have at least one class which implements your HrEmployeesReportOutput interface
And if you are using @ComponentScan (added automatically if you are using spring-boot) your class must have annotation @Component

For example:

@Component
public class HrEmployeesReportOutputImpl implements HrEmployeesReportOutput{...}

No Qualifying Bean of type found for dependency for @Autowired service

The problem is @ComponentScan without a specifying a base package, from the doc:

If specific packages are not defined, scanning will occur from the package of the class that declares this annotation.

(emphasis is mine)


Note, the same goes for: @EnableJpaRepositories



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