What Is the Difference Between @Autowired and @Qualifier

The difference are that @Autowired and @Qualifier are the spring annotation while @Resource is the standard java annotation (from JSR-250) . Besides , @Resource only supports for fields and setter injection while @Autowired supports fields , setter ,constructors and multi-argument methods injection.

What is difference between @primary and @qualifier?

The @Primary annotation sets the bean preference and it is used with the @Bean or @Component etc stereotype annotations. On the other hand, @Qualifier is usually used with @Autowired or @Inject etc annotations.

What is the difference between @autowired and @component?

java. The @Autowired annotation allows the container to automatically inject the message property from the application-context. … The @Component tells that Message is a component, a bean whose object has to be created. The “msgObject” is the name of the created object.