autowired

Injection of autowired dependencies failed;

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The error shows that com.bd.service.ArticleService is not a registered bean. Add the packages in which you have beans that will be autowired in your application context: <context:component-scan base-package=”com.bd.service”/> <context:component-scan base-package=”com.bd.controleur”/> Alternatively, if you want to include all subpackages in com.bd: <context:component-scan base-package=”com.bd”> <context:include-filter type=”aspectj” expression=”com.bd.*” /> </context:component-scan> As a side note, if you’re using Spring … Read more

How does Spring annotation @Autowired work?

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Java allows access controls on a field or method to be turned off (yes, there’s a security check to pass first) via the AccessibleObject.setAccessible() method which is part of the reflection framework (both Field and Method inherit from AccessibleObject). Once the field can be discovered and written to, it’s pretty trivial to do the rest … Read more

Can spring @Autowired Map?

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You can create an automatically initialized map with keys of your choice using Spring Java configuration: In class annotated with @Configuration annotation: @Autowired private List<ISendableConverter> sendableConverters; @Bean public Map<String, ISendableConverter> sendableConvertersMap() { Map<String, ISendableConverter> sendableConvertersMap = new HashMap<>(); for (ISendableConverter converter : sendableConverters) { sendableConvertersMap.put(converter.getType(), converter); } return sendableConvertersMap; } Than you inject this map … Read more

Spring boot autowiring an interface with multiple implementations

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Use @Qualifier annotation is used to differentiate beans of the same interface Take look at Spring Boot documentation Also, to inject all beans of the same interface, just autowire List of interface (The same way in Spring / Spring Boot / SpringBootTest) Example below: @SpringBootApplication public class DemoApplication { public static void main(String[] args) { … Read more

Autowired Environment is null

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Autowiring happens later than load() is called (for some reason). A workaround is to implement EnvironmentAware and rely on Spring calling setEnvironment() method: @Configuration @ComponentScan(basePackages = “my.pack.offer.*”) @PropertySource(“classpath:OfferService.properties”) public class PropertiesUtil implements EnvironmentAware { private Environment environment; @Override public void setEnvironment(final Environment environment) { this.environment = environment; } @Bean public String load(String propertyName) { return … Read more

No matching bean of type … found for dependency

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Multiple things can cause this, I didn’t bother to check your entire repository, so I’m going out on a limb here. First off, you could be missing an annotation (@Service or @Component) from the implementation of com.example.my.services.user.UserService, if you’re using annotations for configuration. If you’re using (only) xml, you’re probably missing the <bean> -definition for … Read more

spring autowiring with unique beans: Spring expected single matching bean but found 2

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The issue is because you have a bean of type SuggestionService created through @Component annotation and also through the XML config . As explained by JB Nizet, this will lead to the creation of a bean with name ‘suggestionService’ created via @Component and another with name ‘SuggestionService’ created through XML . When you refer SuggestionService … Read more

Inject and Resource and Autowired annotations

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The difference between @Inject vs. @Autowire vs. @Resource? @Autowired: spring propriety annotation (as opposed to @Inject and @Resource) that inject a resource by-type, i.e. by the class of by the interface of the annotated field or contractor. In case we have few implementation of an interface or a subclass we can narrow down the selection … Read more

Using Spring 3 autowire in a standalone Java application

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Spring works in standalone application. You are using the wrong way to create a spring bean. The correct way to do it like this: @Component public class Main { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext(“META-INF/config.xml”); Main p = context.getBean(Main.class); p.start(args); } @Autowired private MyBean myBean; private void start(String[] args) { … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)