Add Spring JMS testing examples. (#12518)

spring-jms/src/main/java/com/baeldung/spring/jms/testing/JmsApplication.java

@@ -0,0 +1,13 @@
+package com.baeldung.spring.jms.testing;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.ComponentScan;
+
+@ComponentScan
+public class JmsApplication {
+
+    public static void main(String[] args) {
+        ApplicationContext context = new AnnotationConfigApplicationContext(JmsApplication.class);
+    }
+}

spring-jms/src/main/java/com/baeldung/spring/jms/testing/JmsConfig.java

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+package com.baeldung.spring.jms.testing;
+
+import javax.jms.ConnectionFactory;
+
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jms.annotation.EnableJms;
+import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
+import org.springframework.jms.config.JmsListenerContainerFactory;
+import org.springframework.jms.core.JmsTemplate;
+
+@Configuration
+@EnableJms
+public class JmsConfig {
+
+    @Bean
+    public JmsListenerContainerFactory<?> jmsListenerContainerFactory() {
+        DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
+        factory.setConnectionFactory(connectionFactory());
+        return factory;
+    }
+
+    @Bean
+    public ConnectionFactory connectionFactory() {
+        return new ActiveMQConnectionFactory("tcp://localhost:61616");
+    }
+
+    @Bean
+    public JmsTemplate jmsTemplate() {
+        return new JmsTemplate(connectionFactory());
+    }
+
+}

spring-jms/src/main/java/com/baeldung/spring/jms/testing/MessageListener.java

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+package com.baeldung.spring.jms.testing;
+
+import javax.jms.JMSException;
+import javax.jms.TextMessage;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.jms.annotation.JmsListener;
+import org.springframework.stereotype.Component;
+
+@Component
+public class MessageListener {
+
+    private static final Logger logger = LoggerFactory.getLogger(MessageListener.class);
+
+    @JmsListener(destination = "queue-1")
+    public void sampleJmsListenerMethod(TextMessage message) throws JMSException {
+        logger.info("JMS listener received text message: {}", message.getText());
+    }
+}

spring-jms/src/main/java/com/baeldung/spring/jms/testing/MessageSender.java

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+package com.baeldung.spring.jms.testing;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jms.core.JmsTemplate;
+import org.springframework.stereotype.Component;
+
+@Component
+public class MessageSender {
+
+    @Autowired
+    private JmsTemplate jmsTemplate;
+
+    private static final Logger logger = LoggerFactory.getLogger(MessageSender.class);
+
+    public void sendTextMessage(String destination, String message) {
+        logger.info("Sending message to {} destination with text {}", destination, message);
+        jmsTemplate.send(destination, s -> s.createTextMessage(message));
+    }
+}