spring-4

I am using Spring 4.16 with Java Annotations, and i want to do something like: @Configuration @ComponentScan(basePackages = "com.example.business", includeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = ServiceComponent.class)) @ComponentScan(basePackages = "com.example.business.framework") public class ServicesBaseConfiguration { } Obviusly, it doesn't compile. But i hope you get my point. I want to have multiple ComponentScans with differents packages and filters. I cannot unify both ComponentsScan because it wouldn't create any component from framework but those

I want to develop a small chat with springs new websocket/stomp support. I guess i cannot use something like this: @MessageMapping("/connect/{roomId}") @SendTo("/topic/newMessage") public String connectToChatRoom(@PathVariable String roomId, Principal p) { return getTimestamp() + " " + p.getName() + " connected to the room."; } What are my options for dynamic mapping here? As a client i want to subscribe only to the room I'm in. Thanks in advance! Figured it out, you need to use @DestinationVariable instead of @PathVariable Yes the @MessageMapping annotation (javaadoc) and the reference docs

I have a spring boot application and I want to pass application.properties file in commandLine when I start-up . i.e when I run mvn spring-boot:run --application.properties I will have a default application.properties in src/main/resources . but that is only for testing purposes. In the production run, I would like to pass the property file in commandLine. I am aware of passing single arguments such as mvn spring-boot:run --server.port=9001 . But I have many such properties and would prefer to pass a property file if that is possible. You can do that with spring.config.location property: mvn

Java 8 added a new feature by which we can provide method implementation in interfaces. Is there any way in Spring 4 by which we can inject beans in the interface which can be used inside the method body? Below is the sample code public interface TestWiring{ @Autowired public Service service;// this is not possible as it would be static. //Is there any way I can inject any service bean which can be used inside testWiringMethod. default void testWiringMethod(){ // Call method of service service.testService(); } } This is a bit tricky but it works if you need the dependency inside the interface

What's the difference between @GetMapping and @RequestMapping(method = RequestMethod.GET) ? I've seen in some Spring Reactive examples, that @GetMapping was used instead of @RequestMapping @GetMapping is a composed annotation that acts as a shortcut for @RequestMapping(method = RequestMethod.GET) . @GetMapping is the newer annotaion. It supports consumes Consume options are : consumes = "text/plain" consumes = {"text/plain", "application/*"} For Further details see: GetMapping Annotation or read: request mapping variants RequestMapping supports consumes as well Deroude As you can see here :