回顧
第一篇:mac下安裝ActiveMQ
第二篇:ActiveMQ兩種模式
集成步驟
1、引入依賴
<!--後面兩個依賴可以根據實際情況引入-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-activemq</artifactId>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.7.0</version>
</dependency>
<dependency>
<groupId>org.messaginghub</groupId>
<artifactId>pooled-jms</artifactId>
<version>1.0.3</version>
</dependency>
2、在application.properties中配置
spring.activemq.broker-url=tcp://localhost:61616
spring.activemq.user=admin
spring.activemq.password=admin
spring.activemq.in-memory=false
spring.activemq.pool.enabled=true
spring.activemq.pool.max-connections=5
spring.activemq.pool.idle-timeout=30s
3、在java類中配置
@Configuration
@EnableJms
public class Application {
@Bean
public Queue queue(){
return new ActiveMQQueue();
}
@Bean
public RedeliveryPolicy redeliveryPolicy(){
RedeliveryPolicy redeliveryPolicy= new RedeliveryPolicy();
//是否在每次嘗試重新發送失敗後,增長這個等待時間
redeliveryPolicy.setUseExponentialBackOff(true);
//重發次數,默認爲6次 這裏設置爲10次
redeliveryPolicy.setMaximumRedeliveries(10);
//重發時間間隔,默認爲1秒
redeliveryPolicy.setInitialRedeliveryDelay(1);
//第一次失敗後重新發送之前等待500毫秒,第二次失敗再等待500 * 2毫秒,這裏的2就是value
redeliveryPolicy.setBackOffMultiplier(2);
//是否避免消息碰撞
redeliveryPolicy.setUseCollisionAvoidance(false);
//設置重發最大拖延時間-1 表示沒有拖延只有UseExponentialBackOff(true)爲true時生效
redeliveryPolicy.setMaximumRedeliveryDelay(-1);
return redeliveryPolicy;
}
@Bean
public ActiveMQConnectionFactory connectionFactory(){
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
connectionFactory.setBrokerURL("tcp://localhost:61616");
connectionFactory.setUserName("admin");
connectionFactory.setPassword("admin");
return connectionFactory;
}
@Bean
JmsListenerContainerFactory<?> queueFactory(ConnectionFactory connectionFactory){
SimpleJmsListenerContainerFactory factory = new SimpleJmsListenerContainerFactory();
factory.setConnectionFactory(connectionFactory);
factory.setPubSubDomain(false);
return factory;
}
@Bean
public JmsTemplate jmsTemplate(ActiveMQConnectionFactory activeMQConnectionFactory,Queue queue){
JmsTemplate jmsTemplate=new JmsTemplate();
//定義持久化後節點掛掉以後,重啓可以繼續消費.NON_PERSISTENT 表示非持久化,PERSISTENT 表示持久化
jmsTemplate.setDeliveryMode(DeliveryMode.PERSISTENT);
jmsTemplate.setConnectionFactory(activeMQConnectionFactory);
jmsTemplate.setDefaultDestination(queue); //此處可不設置默認,在發送消息時也可設置隊列
jmsTemplate.setSessionAcknowledgeMode(4);//客戶端簽收模式
return jmsTemplate;
}
@Bean(name = "jmsQueueListener")
public DefaultJmsListenerContainerFactory jmsQueueListenerContainerFactory(ActiveMQConnectionFactory activeMQConnectionFactory) {
DefaultJmsListenerContainerFactory factory =
new DefaultJmsListenerContainerFactory();
factory.setConnectionFactory(activeMQConnectionFactory);
//設置連接數
factory.setConcurrency("1-10");
//重連間隔時間
factory.setRecoveryInterval(1000L);
factory.setSessionAcknowledgeMode(4);
return factory;
}
}
這邊配置了很多屬性,包括連接池和簽收屬性,着重說一下簽收模式。客戶端簽收模式有如下幾種:
- AUTO_ACKNOWLEDGE = 1 自動確認
- CLIENT_ACKNOWLEDGE = 2 客戶端手動確認
- DUPS_OK_ACKNOWLEDGE = 3 自動批量確認
- SESSION_TRANSACTED = 0 事務提交併確認
- INDIVIDUAL_ACKNOWLEDGE = 4 單條消息確認 activemq 獨有
消費者客戶端成功接收一條消息一般包括三個階段:
- 消費者接收消息,也即從MessageConsumer的receive方法返回
- 消費者處理消息
- 消息被簽收
4、生產者
@RestController
public class TaskController {
@Autowired
private JmsTemplate jmsTemplate;
Destination Destination = new ActiveMQQueue("testDestination");
@Autowired
public TaskController(JmsTemplate template) {
this.jmsTemplate = template;
}
@RequestMapping(value = "/test", method = RequestMethod.POST)
@ResponseBody
public String test(@RequestBody String body) throws JSONException {
String qMessage = "test";
jmsTemplate.convertAndSend(Destination, qMessage);
return "success";
}
5、消費者
@JmsListener(destination = "testDestination", containerFactory = "jmsQueueListener")
public void receiveQueue(final TextMessage text, Session session)
throws JMSException {
try {
logger.debug("Consumer收到的報文爲:" + text.getText());
text.acknowledge();// 使用手動簽收模式,需要手動的調用,如果不在catch中調用session.recover()消息只會在重啓服務後重發
} catch (Exception e) {
session.recover();// 此不可省略 重發信息使用
}
}