Java tutorial
/* * Copyright 2014-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package sample.mvc; import java.security.Principal; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpSession; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.bind.annotation.RestController; /** * @author Rob Winch */ @RestController public class RestDemoController { @RequestMapping(value = "/", produces = "application/json") public Map<String, String> helloUser(Principal principal) { HashMap<String, String> result = new HashMap<String, String>(); result.put("username", principal.getName()); return result; } @RequestMapping("/logout") @ResponseStatus(HttpStatus.NO_CONTENT) public void logout(HttpSession session) { session.invalidate(); } }