Dependencies for Spring Integration Amqp in Spring Boot - spring

Question

In order to use Spring Integration Amqp in a Spring Boot application, what are the dependencies I need to include?
Spring Boot version is 2.0.5.
Current dependencies I have are spring-boot-starter-integration and spring-integration-amqp
Error messages are classes like SimpleMessageListenerContainer and AmqpInboundChannelAdapter are not found on the classpath.
UPDATE:
My build.gradle entries --
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:2.0.5.RELEASE")
}
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-integration')
compile('org.springframework.boot:spring-boot-starter-amqp')
compile('org.springframework.integration:spring-integration-amqp')
testCompile('org.springframework.boot:spring-boot-starter-test')
}

Answer 1

I had to add the following dependencies to resolve the classes in question (the last in the list did it, using latest spring initalizr, spring-boot 2.0.5)
dependencies {
implementation('org.springframework.boot:spring-boot-starter-amqp')
implementation('org.springframework.boot:spring-boot-starter-integration')
testImplementation('org.springframework.boot:spring-boot-starter-test')
compile 'org.springframework.integration:spring-integration-amqp'
}
To be fair, this answer was already given, just not for gradle.
I am using gradle 4.10.2 on a linux machine, spring-boot initialzr with the options RabbitMQ and Spring-Integration. Here are the changed files:
build.gradle
buildscript {
ext {
springBootVersion = '2.0.5.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
implementation('org.springframework.boot:spring-boot-starter-amqp')
implementation('org.springframework.boot:spring-boot-starter-integration')
testImplementation('org.springframework.boot:spring-boot-starter-test')
compile 'org.springframework.integration:spring-integration-amqp'
}
Implementation of Example 12.2.1 Configuring with Java Configuration from the Spring Integration docs:
package com.example.integrationamqp;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter;
import org.springframework.integration.amqp.inbound.AmqpInboundGateway;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.handler.AbstractReplyProducingMessageHandler;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
#SpringBootApplication
public class IntegrationAmqpApplication {
public static void main(String[] args) {
new SpringApplicationBuilder(IntegrationAmqpApplication.class)
.web(WebApplicationType.NONE)
.run(args);
}
#Bean
public MessageChannel amqpInputChannel() {
return new DirectChannel();
}
#Bean
public AmqpInboundChannelAdapter inbound(SimpleMessageListenerContainer listenerContainer,
#Qualifier("amqpInputChannel") MessageChannel channel) {
AmqpInboundChannelAdapter adapter = new AmqpInboundChannelAdapter(listenerContainer);
adapter.setOutputChannel(channel);
return adapter;
}
#Bean
public SimpleMessageListenerContainer container(ConnectionFactory connectionFactory) {
SimpleMessageListenerContainer container =
new SimpleMessageListenerContainer(connectionFactory);
container.setQueueNames("foo");
container.setConcurrentConsumers(2);
// ...
return container;
}
#Bean
#ServiceActivator(inputChannel = "amqpInputChannel")
public MessageHandler handler() {
return new MessageHandler() {
#Override
public void handleMessage(Message<?> message) throws MessagingException {
System.out.println(message.getPayload());
}
};
}
}

Answer 2

Add this dependency:
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
And are you sure you have this one?:
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-amqp</artifactId>