先建一个spring boot项目,然后加入RabbitMQ的依赖就和相关配置。
在pom.xml中加入:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
在application.yml中加入配置:
spring:
#rabbitmq配置
rabbitmq:
host: 127.0.0.1
port: 5672
username: guest
password: guest
publisher-confirms: true # 开启消息确认,这可不用管
virtual-host: /
@Configuration
public class RabbitConfig {
public final static String SIMPLE = "simple"; // 队列名称
@Bean
public Queue simpleQueue() { // 返回一个bean
return new Queue(SIMPLE, true, false, true);
}
}
创建消费者和生产者:
@Component
public class SimpleRabbit {
// 简单的点对点模式
@Autowired
RabbitTemplate rabbitTemplate;
// 生产者
public void send() throws Exception {
for (int i = 0; i < 5; i++) {
rabbitTemplate.convertAndSend(RabbitConfig.SIMPLE, "发送:" + i);
Thread.sleep(1000);
}
}
// 消费者监听SIMPLE队列
@RabbitListener(queues = RabbitConfig.SIMPLE)
public void comsumer(String msg) {
System.out.println("comsumer:" + msg);
}
}
然后在测试类测试一下:
@RunWith(SpringRunner.class)
@SpringBootTest
public class SimpleTest {
@Autowired
SimpleRabbit rabbit;
@Test
public void test() throws Exception {
rabbit.send();
}
}
工作模式和上边的模式差不多,只是对于当前的队列多了一个消费者:
我们只用在 SimpleRabbit类中添加一个消费者就可以完成测试:
@Component
public class SimpleRabbit {
// 简单的点对点模式
@Autowired
RabbitTemplate rabbitTemplate;
// 生产者
public void send() throws Exception {
for (int i = 0; i < 10; i++) {
rabbitTemplate.convertAndSend(RabbitConfig.SIMPLE, "发送:" + i);
Thread.sleep(1000);
}
}
@RabbitListener(queues = RabbitConfig.SIMPLE)
public void comsumer1(String o) {
System.out.println("consumer1:" + o);
}
@RabbitListener(queues = RabbitConfig.SIMPLE)
public void comsumer2(String o) {
System.out.println("consumer2" + o);
}
}
直接运行test的测试方法:
从打印数据来开,是采用轮询的方式消费的。
生产者是把消息发到交换机,
然后交换机把数据发送到绑定的队列上。如果没有队列与之绑定,信息将会丢失,交换机不能存储信息。
消费者监听队列,有就消费。
为了方便,这里的两个队列后边两个模式就一起用了。
@Configuration
public class RabbitConfig {
public final static String PUB_SUB_EXCHANGE = "pub_sub"; // 发布订阅的交换机
public final static String QUEUE_1 = "queue_1"; //队列1
public final static String QUEUE_2 = "queue_2"; //队列2
@Bean("queue_1")
public Queue QUEUE_1_Queue() {
return new Queue(QUEUE_1, true, false, true);
}
@Bean("queue_2")
public Queue QUEUE_2_Queue() {
return new Queue(QUEUE_2, true, false, true);
}
@Bean("pub_sub") // 交换机
public Exchange pub_sub_Exchange(){
return ExchangeBuilder.fanoutExchange(PUB_SUB_EXCHANGE).build();
}
// 使交换机与队列绑定
@Bean
public Binding binding_QUEUE_1(@Qualifier("queue_1") Queue queue, @Qualifier(PUB_SUB_EXCHANGE) Exchange exchange) {
// with是路由key,这模式默认为空就好
return BindingBuilder.bind(queue).to(exchange).with("").noargs();
}
@Bean
public Binding binding_QUEUE_2(@Qualifier("queue_2") Queue queue, @Qualifier(PUB_SUB_EXCHANGE) Exchange exchange) {
return BindingBuilder.bind(queue).to(exchange).with("").noargs();
}
}
然后定义生产者和消费者:
@Component
public class FanoutRabbit {
@Autowired
RabbitTemplate template;
public void producer() {
for (int i = 0; i < 5; i++) {
// ""是路由key,应为没有所以传的空
template.convertAndSend(RabbitConfig.PUB_SUB_EXCHANGE, "", i);
}
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.QUEUE_1)
public void queues_1(Integer msg) {
System.out.println("队列1的消费者:" + msg);
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.QUEUE_2)
public void queues_2(Integer msg) {
System.out.println("队列2的消费者:" + msg);
}
}
测试:
@Autowired
FanoutRabbit fanoutRabbit;
@Test
public void test1() {
fanoutRabbit.producer();
}
@Configuration
public class RabbitConfig {
public final static String ROUTING_EXCHANGE = "routing1"; // 路由的交换机
public final static String ROUTING_1 = "routing_1"; //routing队列1
public final static String ROUTING_2 = "routing_2"; //routing队列2
@Bean("routing_1")
public Queue OUTING_1_Queue() {
return new Queue(ROUTING_1, true, false, true);
}
@Bean("routing_2")
public Queue ROUTING_2_Queue() {
return new Queue(ROUTING_2, true, false, true);
}
@Bean("routing1")
public Exchange routingExchange(){
return ExchangeBuilder.directExchange(ROUTING_EXCHANGE).build();
}
@Bean
public Binding binding_Routing_QUEUE_1(@Qualifier(ROUTING_1) Queue queue, @Qualifier(ROUTING_EXCHANGE) Exchange exchange) {
return BindingBuilder.bind(queue).to(exchange).with(ROUTING_1).noargs();
}
@Bean
public Binding binding_Routing_QUEUE_2(@Qualifier(ROUTING_2) Queue queue, @Qualifier(ROUTING_EXCHANGE) Exchange exchange) {
return BindingBuilder.bind(queue).to(exchange).with(ROUTING_2).noargs();
}
}
生产者和消费者:
@Component
public class RoutingRabbit {
@Autowired
RabbitTemplate template;
public void producer(){
for (int i = 0; i < 5; i++) {
template.convertAndSend(RabbitConfig.ROUTING_EXCHANGE, RabbitConfig.ROUTING_1,i);
}
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.ROUTING_1)
public void queues_1(Integer msg) {
System.out.println("队列1的消费者:" + msg);
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.ROUTING_2)
public void queues_2(Integer msg) {
System.out.println("队列2的消费者:" + msg);
}
}
设置队列和交换机的路由key,当生产者发送消息时,知道路由key,比较有不有合适的key。有就发布到队列上去。
public final static String TOPIC_1 = "routing_1"; //topic队列1
public final static String TOPIC_2 = "routing_2"; //topic队列2
@Bean(TOPIC_1)
public Queue TOPIC_1_Queue() {
return new Queue(TOPIC_1, true, false, true);
}
@Bean(TOPIC_2)
public Queue TOPIC_2_Queue() {
return new Queue(TOPIC_2, true, false, true);
}
@Bean(TOPIC_EXCHANGE)
public Exchange topicExchange(){
return ExchangeBuilder.topicExchange(TOPIC_EXCHANGE).build();
}
@Bean
public Binding binding_Topic_QUEUE_1(@Qualifier(TOPIC_1) Queue queue, @Qualifier(TOPIC_EXCHANGE) Exchange exchange) {
return BindingBuilder.bind(queue).to(exchange).with("aa.bb.cc").noargs();
}
@Bean
public Binding binding_Topic_QUEUE_2(@Qualifier(TOPIC_2) Queue queue, @Qualifier(TOPIC_EXCHANGE) Exchange exchange) {
return BindingBuilder.bind(queue).to(exchange).with("aa.#").noargs();
}
生产者和消费者:
@Component
public class TopicRabbit {
@Autowired
RabbitTemplate template;
public void producer() {
for (int i = 0; i < 5; i++) {
template.convertAndSend(RabbitConfig.TOPIC_EXCHANGE, "aa.bb", i);
}
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.TOPIC_1)
public void queues_1(Integer msg) {
System.out.println("队列1的消费者:" + msg);
}
// 队列1的消费者
@RabbitListener(queues = RabbitConfig.TOPIC_2)
public void queues_2(Integer msg) {
System.out.println("队列2的消费者:" + msg);
}
}
测试结果:
队列2的消费者:1
队列2的消费者:0
队列2的消费者:3
队列2的消费者:2
队列2的消费者:4
*号代表单个词语
#代表多个词语
其它的和routing没什么区别。