在JUnit中自动连线：仅绑定Test类中的字段，而不绑定其他类中的字段

Question

I have the following Test class:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/**/context.xml")
public class HAD_Test extends TestCase {

    @Autowired
    private UgcService ugcService;

    @Test
    public void test() {
        // this binding works fine
        Ugc ugc = ugcService.getRegistro(138355);
        ...
        HAD_Data dData = new HAD_Data(ugc);
        data.init();
        ...
    }
}

Then I have this other class:

public class HAD_Data {
    @Autowired
    private ClimaService climaService;

    public void init() {
        ...
        // at this point, climaService is null
        climaService.getRegistro(556)
        ...
    }
}

The problem I'm having, is that the bindings in the Test class are being applied perfectly, but in any class I use, like HAD_Data, where there exist other autowired fields, these ones are not binded. They always have a null value.

I don't really know why these bindings are not been assigned. Can anybody help me please? If any other information is necessary, I can include it, but I think that my context.xml is correct, cause there exist some bindings applied ok.

Thanks, Marc

Answer 1

How do you expect Spring to inject the field if you are the one creating the object?

HAD_Data dData = new HAD_Data(ugc);

Spring can only autowire managed beans.

Add a bean declaration in your context.xml for HAD_Data and use that. You can also use @PostConstruct on the init() method so that Spring takes care of calling it after initialization.

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Also, note that Java conventions discourage the use of _ in class names.