Java / Spring Problem with @Service and @Autowired annotations

Question

[spring 3.0.5] [jboss 5.1]

I have several classes marked as @Servicethat implement the same interface.

For instance,

@Service(value="test1") 
public TestImpl1 implements Test {} 
@Service(value="test2") 
public TestImpl2 implements Test {} 

Next, I have the following structure

public SomeClass { 
@Autowired 
@Qualifier("test1") 
Test test1; 
@Autowired 
@Qualifier("test2") 
Test test2; 

I get an exception (on deployment)

10:36:58,277 ERROR [[/test-web]] Servlet /test-web threw load() 
exception 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No 
unique bean of type [pl.tests] is defined: expected single matching 
bean but found 2: [test1, test2] 
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.doReso lveDependency(DefaultListableBeanFactory.java: 
796) 
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolv eDependency(DefaultListableBeanFactory.java: 
703) 
        at 
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostPro cessor 
$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java: 
474) 

Does anyone know how to solve this?

T.

Answer 1

Several variants:

• Use @Resource(name="test1")at injection point
• may use a mechanism javax.inject.Qualifer. In short, you define an annotation ( @Test) and annotate the annotation with @Qualifier. Then use @Autowired @Testat the injection point.
• bean. xml <qualifier />, @Qualifier("test1")