I am new at Spring MVC and I am trying to build a Web Application from scratch using Spring MVC + Hibernate to serve something like a JSON Rest API, having this API consumed through Backbone at the client side. To do that I have started following this tutorial ( http://www.mkyong.com/spring-mvc/spring-3-mvc-and-json-example/ ) .
So I have a model Message which will have the following REST API Interface:
GET /api/messages ( working ok )
GET /api/messages/:id ( working ok )
DELETE /api/messages/:id ( working ok )
PUT /api/messages/:id ( working ok )
POST /api/messages ( error: (DefaultHandlerExceptionResolver.java:194) - Request method 'POST' not supported)
I expected this problem happens for PUT or DELETE requests when doing the request through a form, but not for a POST request. I am not even doing the request through a form. On the client side the request is done through Backbone like this:
new App.Models.Message({ attributeA : 'a', attributeB : 'b' }).save();
I have already tried to add the httpMethodFilter at web.xml as suggested in other Stackoverflow questions:
<filter>
<filter-name>httpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>httpMethodFilter</filter-name>
<servlet-name>mvc-dispatcher</servlet-name>
</filter-mapping>
Has anyone had the same problem?
I leave here my MessagesController:
@Controller
@RequestMapping("/api/messages")
public class MessagesController {
@Autowired
private MessageService messageService;
@RequestMapping(method = RequestMethod.GET)
public @ResponseBody List<Message> getMessagesInJSON(@RequestParam( value = "type", required = false ) String type) {
List<Message> messages = messageService.findAll();
return messages;
}
@RequestMapping( value = "/{id}", method = RequestMethod.GET )
public @ResponseBody Message getMessageInJson(@PathVariable Integer id ) {
Message message = messageService.findById(id);
return message;
}
@RequestMapping( value = "/{id}", method = RequestMethod.DELETE )
@ResponseStatus( value = HttpStatus.NO_CONTENT )
public void deleteMessage(@PathVariable Integer id ) throws NotFoundException {
messageService.delete(id);
}
@RequestMapping( value = "/{id}", method = RequestMethod.PUT )
@ResponseStatus( value = HttpStatus.NO_CONTENT )
public void editMessage( @PathVariable Integer id, @RequestBody Message message ) throws NotFoundException {
message.setId(id);
messageService.update(message);
}
@RequestMapping( value = "/", method = RequestMethod.POST )
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody Message createMessage( @RequestBody Message message ) {
return messageService.create(message);
}
}
Thanks a lot!
You have already mapped /api/messages
to the getMessagesInJSON
method which only allows a GET request. Your POST request is mapping to a different path.
I suggest to omit the value attribute on your request mapping for createMessage
.
@RequestMapping(method = RequestMethod.POST )