@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
Related Topics
How to Get Numbers from Given Gcd and Lcm
Spring Boot JPA Unknown Column in Field List
Replacing Json String With Another String in Java
How to Get Summation of Pair(Key) Values in a Map in Java
How to Print Even and Odd Position Characters of an Array of Strings in Java
How to Scroll Scrollbar Horizontally Which Is Inside a Window Using Java
Java.Lang.Noclassdeffounderror: Org/Springframework/Core/Env/Configurableenvironment
How to Use If-Else Logic in Java 8 Stream Foreach
Correct Way to Focus an Element in Selenium Webdriver Using Java
I Want to Detect the End of Scroll Event
Jpa- Joining Two Tables in Non-Entity Class
Looping Within Multiple Arrays in Java Stream
How to Have Each Record of Json on a Separate Line
Why Am I Getting the Error "The Method Is Undefined for the Type"
How to Replace Multiple Words in a Single String in Java
How to Check Whether the Given Object Is Object or Array in Json String