Problem with Autowiring & No unique bean

Question

I have 2 classes (B,C) extends class A.

@Service
public class A  extends AbstratClass{

    @Autowired
    A(MyClass  br) {
        super(br);
         


        

Answer 1

Generally you will get this error when defined two beans with same class

if you address the above two line we have two beans with same class.

when you trying to autowire this class in any other classed you will get this type of error

You have two solutions

First Method

1. use qualifier by defining a bean id init like this

   @Autowired
   @Qualifier("a")
   MyClass a;
   
   @Autowired
   @Qualifier("b")
   MyClass b;
   

Second Method

use JSR250 api(its a jar file you can put into your class path

Then do autowriring like below

@Resource("a")
MyClass a

@Resource("b")
MyClass a