Merge branch 'master' of https://github.com/ivanp81/tutorials into ivanp81-master

spring-mvc-java/src/main/java/com/baeldung/model/Message.java

@@ -0,0 +1,15 @@
+package com.baeldung.model;
+
+public class Message {
+
+	private String from;
+	private String text;
+
+	public String getText() {
+		return text;
+	}
+
+	public String getFrom() {
+		return from;
+	}
+}

spring-mvc-java/src/main/java/com/baeldung/model/OutputMessage.java

@@ -0,0 +1,27 @@
+package com.baeldung.model;
+
+public class OutputMessage {
+
+	private String from;
+	private String text;
+	private String time;
+
+	public OutputMessage(final String from, final String text, final String time) {
+
+		this.from = from;
+		this.text = text;
+		this.time = time;
+	}
+
+	public String getText() {
+		return text;
+	}
+
+	public String getTime() {
+		return time;
+	}
+
+	public String getFrom() {
+		return from;
+	}
+}

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/MainWebAppInitializer.java

@@ -14,7 +14,7 @@ import org.springframework.web.servlet.DispatcherServlet;
 
 public class MainWebAppInitializer implements WebApplicationInitializer {
 
-    private static final String TMP_FOLDER = "C:/Users/ivan/Desktop/tmp";
+    private static final String TMP_FOLDER = "/tmp";
     private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024; // 5 MB
 
     /**

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebSocketConfig.java

@@ -0,0 +1,24 @@
+package com.baeldung.spring.web.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.MessageBrokerRegistry;
+import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer;
+import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
+import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+
+@Configuration
+@EnableWebSocketMessageBroker
+public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
+
+	@Override
+	public void configureMessageBroker(final MessageBrokerRegistry config) {
+		config.enableSimpleBroker("/topic");
+		config.setApplicationDestinationPrefixes("/app");
+	}
+
+	@Override
+	public void registerStompEndpoints(final StompEndpointRegistry registry) {
+		registry.addEndpoint("/chat").withSockJS();
+	}
+
+}

spring-mvc-java/src/main/java/com/baeldung/web/controller/ChatController.java

@@ -0,0 +1,23 @@
+package com.baeldung.web.controller;
+
+import com.baeldung.model.Message;
+import com.baeldung.model.OutputMessage;
+import org.springframework.messaging.handler.annotation.MessageMapping;
+import org.springframework.messaging.handler.annotation.SendTo;
+import org.springframework.stereotype.Controller;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+@Controller
+public class ChatController {
+
+    @MessageMapping("/chat")
+    @SendTo("/topic/messages")
+    public OutputMessage send(final Message message) throws Exception {
+
+        final String time = new SimpleDateFormat("HH:mm").format(new Date());
+        return new OutputMessage(message.getFrom(), message.getText(), time);
+    }
+
+}