fix #21 : add get/post mapping to the http request

livelessons-cloud/livelessons-cloud-connectors/src/main/java/demo/ExampleController.java

@@ -17,13 +17,13 @@ public ExampleController(JdbcTemplate jdbc, ApplicationInstanceInfo info) {
 		this.info = info;
 	}
 
-	@RequestMapping("/")
+	@GetMapping("/")
 	public String hello() {
 		return this.jdbc.queryForObject("select model from car where id = 1",
 				String.class);
 	}
 
-	@RequestMapping("/cloudinfo")
+	@GetMapping("/cloudinfo")
 	public ApplicationInstanceInfo info() {
 		return this.info;
 	}

livelessons-cloud/livelessons-cloud-services/src/main/java/demo/ExampleController.java

@@ -13,7 +13,7 @@ public ExampleController(JdbcTemplate jdbc) {
 		this.jdbc = jdbc;
 	}
 
-	@RequestMapping("/")
+	@GetMapping("/")
 	public String hello() {
 		return jdbc.queryForObject("select model from car where id = 1", String.class);
 	}

livelessons-integration/livelessons-integration-eai/src/main/java/demo/WebSocketIntegration.java

@@ -69,7 +69,7 @@ public IntegrationFlow webSocketFlow(EchoService echoService) {
 		};
 	}
 
-	@RequestMapping("/echo")
+	@GetMapping("/echo")
 	public void send(@RequestParam String name) {
 		requestChannel().send(MessageBuilder.withPayload(name).build());
 	}

livelessons-operations/livelessons-operations-cloud-monitoring/src/main/java/demo/ExampleController.java

@@ -12,18 +12,18 @@ public ExampleController(ExampleHealthIndicator indicator) {
 		this.indicator = indicator;
 	}
 
-	@RequestMapping("/")
+	@GetMapping("/")
 	public String hello() {
 		return "Hello World!";
 	}
 
-	@RequestMapping("/up")
+	@GetMapping("/up")
 	public String up() {
 		this.indicator.setUp(true);
 		return "now up";
 	}
 
-	@RequestMapping("/down")
+	@GetMapping("/down")
 	public String down() {
 		this.indicator.setUp(false);
 		return "now down";

livelessons-operations/livelessons-operations-metrics/src/main/java/demo/ExampleController.java

@@ -12,7 +12,7 @@ public ExampleController(ExampleService service) {
 		this.service = service;
 	}
 
-	@RequestMapping("/")
+	@GetMapping("/")
 	public String hello() {
 		this.service.call();
 		return "Hello World!";

livelessons-security/livelessons-security-basic/src/main/java/basic/GreetingsRestController.java

@@ -11,7 +11,7 @@
 @RestController
 public class GreetingsRestController {
 
-	@RequestMapping("/hi")
+	@PostMapping("/hi")
 	public Map<String, Object> hi(Principal principal) {
 		Map<String, Object> result = new HashMap<>();
 		result.put("id", UUID.randomUUID().toString());