I'm trying to understand the exact behaviour of the Spring Data Rest Controllers.
I have made a simple implementation to test 4 kinds of annotated controllers: @BasePathAwareController, @RepositoryRestController, @RestController, @Controller
The controller has a mapping for an entity "author" in the repository.
This is the controller:
@BasePathAwareController //@RepositoryRestController //@RestController //@Controller public class MyController { @RequestMapping(value="authors/mycontroller/test") public void handleRequest(){ System.out.println("handleRequest of class MyController"); } @RequestMapping(value="/authors/mycontroller/testslash") public void handleSlashRequest(){ System.out.println("handleSlashRequest of class MyController"); } @RequestMapping(value="api/authors/mycontroller/test") public void handleApiRequest(){ System.out.println("handleApiRequest of class MyController"); } @RequestMapping(value="/api/authors/mycontroller/testslash") public void handleSlashApiRequest(){ System.out.println("handleSlashApiRequest of class MyController"); } } I'm testing 4 methods because I have some doubts about the right mapping to be used.
For every experiment, I use a different controller with the sames mappings, simply decommenting the annotation that I need for that experiment.
I'm calling these two URLS with HTTP GET:
http://localhost:8080/myApp/api/mycontroller/test http://localhost:8080/myApp/api/mycontroller/testslash This is the result that I obtain using @BasePathAwareController:
http://localhost:8080/myApp/api/mycontroller/test White page, No errors, No print on console http://localhost:8080/myApp/api/mycontroller/testslash White page, No errors, No print on console This is the result using @RepositoryRestController:
http://localhost:8080/myApp/api/mycontroller/test White page, No errors, No print on console http://localhost:8080/myApp/api/mycontroller/testslash White page, and this message on the console (only for the first HTTP GET on this url): jul 27, 2016 9:23:57 AM org.springframework.web.servlet.DispatcherServlet noHandlerFound WARNING: No mapping found for HTTP request with URI [/myApp/api/authors/mycontroller/testslash] in DispatcherServlet with name 'rest' This is the result if I use @RestController:
http://localhost:8080/myApp/api/mycontroller/test White page, in console: "handleRequest of class MyController" http://localhost:8080/myApp/api/mycontroller/testslash White page, in console: "handleSlashRequest of class MyController" Finally, this is the result using @Controller:
http://localhost:8080/myApp/api/mycontroller/test HTTP STATUS 404, in console: "handleRequest of class MyController" http://localhost:8080/myApp/api/mycontroller/testslash HTTP STATUS 404, in console: "handleSlashRequest of class MyController" For both urls I have this warning: jul 27, 2016 9:28:11 AM org.springframework.web.servlet.DispatcherServlet noHandlerFound WARNING: No mapping found for HTTP request with URI [/myApp/api/authors/mycontroller/authors/mycontroller/test] in DispatcherServlet with name 'rest' I don't understand what's going on.
The only annotation that seems to provide the expected result is the @RestController.
@Controller apparently seems to work, but I have an HTTP status 404 and there is a message with an inconsistent URL /myApp/api/authors/mycontroller/authors/mycontroller/test, despite there is the correct handling message on the console.
The other two annotations (@BasePathAwareController and @RepositoryRestController) don't do nothing.
In summary:
@BasePathAwareController: doesn't do nothing@RepositoryRestController: doesn't do nothing@Controller: strange behaviour@RestController: works perfectly
It would be greatly appreciated any type of clarification about the behaviour and the usage of every kind of @Controller.
Thanks.
