Make URLs in UserController RESTful

src/main/java/de/thm/arsnova/controller/UserController.java

@@ -78,9 +78,9 @@ public class UserController extends AbstractController {
 		response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
 	}
 
-	@RequestMapping(value = { "/activate" }, method = { RequestMethod.POST,
+	@RequestMapping(value = { "/{username}/activate" }, method = { RequestMethod.POST,
 			RequestMethod.GET })
-	public final void activate(@RequestParam final String username,
+	public final void activate(@PathVariable final String username,
 			@RequestParam final String key, final HttpServletRequest request,
 			final HttpServletResponse response) {
 		DbUser dbUser = userService.getDbUser(username);
@@ -94,7 +94,7 @@ public class UserController extends AbstractController {
 		response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
 	}
 
-	@RequestMapping(value = { "/{username}/delete" }, method = RequestMethod.POST)
+	@RequestMapping(value = { "/{username}" }, method = RequestMethod.DELETE)
 	public final void activate(@PathVariable final String username,
 			final HttpServletRequest request,
 			final HttpServletResponse response) {

src/main/java/de/thm/arsnova/services/UserService.java

@@ -381,7 +381,7 @@ public class UserService implements IUserService {
 	}
 
 	public void sendActivationEmail(DbUser dbUser) {
-		String activationUrl = MessageFormat.format("{0}/user/activate?username={1}&key={2}", arsnovaUrl, dbUser.getUsername(), dbUser.getActivationKey());
+		String activationUrl = MessageFormat.format("{0}/user/{1}/activate?key={2}", arsnovaUrl, dbUser.getUsername(), dbUser.getActivationKey());
 		MimeMessage msg = mailSender.createMimeMessage();
 		MimeMessageHelper helper = new MimeMessageHelper(msg);
 		try {