Spring 集成__Java SDK_TCP 接入(专业)_消息队列 MQ-阿里云

2.通过已经与 Spring 集成好的生产者生产消息。

package demo;
import com.aliyun.openservices.ons.api.Message;
import com.aliyun.openservices.ons.api.Producer;
import com.aliyun.openservices.ons.api.SendResult;
import com.aliyun.openservices.ons.api.exception.ONSClientException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ProduceWithSpring {
    public static void main(String[] args) {
        /**
         * 生产者Bean配置在producer.xml中,可通过ApplicationContext获取或者直接注入到其他类(比如具体的Controller)中.
         */
        ApplicationContext context = new ClassPathXmlApplicationContext("producer.xml");
        Producer producer = (Producer) context.getBean("producer");
        //循环发送消息
        for (int i = 0; i < 100; i++) {
            Message msg = new Message( //
                    // Message Topic
                    "TopicTestMQ",
                    // Message Tag 可理解为Gmail中的标签，对消息进行再归类，方便Consumer指定过滤条件在MQ服务器过滤
                    "TagA",
                    // Message Body 可以是任何二进制形式的数据， MQ不做任何干预
                    // 需要Producer与Consumer协商好一致的序列化和反序列化方式
                    "Hello MQ".getBytes());
            // 设置代表消息的业务关键属性，请尽可能全局唯一
            // 以方便您在无法正常收到消息情况下，可通过MQ 控制台查询消息并补发
            // 注意：不设置也不会影响消息正常收发
            msg.setKey("ORDERID_100");
            // 发送消息，只要不抛异常就是成功
            try {
                SendResult sendResult = producer.send(msg);
                assert sendResult != null;
                System.out.println("send success: " + sendResult.getMessageId());
            }catch (ONSClientException e) {
                System.out.println("发送失败");
            }
        }
    }
}

package demo;
import com.aliyun.openservices.ons.api.Message;
import com.aliyun.openservices.ons.api.transaction.LocalTransactionChecker;
import com.aliyun.openservices.ons.api.transaction.TransactionStatus;
public class DemoLocalTransactionChecker implements LocalTransactionChecker {
    public TransactionStatus check(Message msg) {
        System.out.println("开始回查本地事务状态");
        return TransactionStatus.CommitTransaction; //根据本地事务状态检查结果返回不同的TransactionStatus
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="https://www.springframework.org/schema/beans"
       xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="localTransactionChecker" class="demo.DemoLocalTransactionChecker"></bean>
    <bean id="transactionProducer" class="com.aliyun.openservices.ons.api.bean.TransactionProducerBean" init-method="start" destroy-method="shutdown">
        <property name="properties" > <!--事务消息生产者配置信息-->
            <props>
                <prop key="ProducerId">PID_DEMO</prop> <!--请替换XXX-->
                <prop key="AccessKey">AKDEMO</prop>
                <prop key="SecretKey">SKDEMO</prop>
            </props>
        </property>
        <property name="localTransactionChecker" ref="localTransactionChecker"></property>
    </bean>
</beans>

package demo;
import com.aliyun.openservices.ons.api.Message;
import com.aliyun.openservices.ons.api.SendResult;
import com.aliyun.openservices.ons.api.transaction.LocalTransactionExecuter;
import com.aliyun.openservices.ons.api.transaction.TransactionProducer;
import com.aliyun.openservices.ons.api.transaction.TransactionStatus;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ProduceTransMsgWithSpring {
    public static void main(String[] args) {
        /**
         * 事务消息生产者Bean配置在transactionProducer.xml中,可通过ApplicationContext获取或者直接注入到其他类(比如具体的Controller)中.
         * 请结合例子"发送事务消息"
         */
        ApplicationContext context = new ClassPathXmlApplicationContext("transactionProducer.xml");
        TransactionProducer transactionProducer = (TransactionProducer) context.getBean("transactionProducer");
        Message msg = new Message("XXX", "TagA", "Hello MQ transaction===".getBytes());
        SendResult sendResult = transactionProducer.send(msg, new LocalTransactionExecuter() {
            @Override
            public TransactionStatus execute(Message msg, Object arg) {
                System.out.println("执行本地事务");
                return TransactionStatus.CommitTransaction; //根据本地事务执行结果来返回不同的TransactionStatus
            }
        }, null);
    }
}

package demo;
import com.aliyun.openservices.ons.api.Action;
import com.aliyun.openservices.ons.api.ConsumeContext;
import com.aliyun.openservices.ons.api.Message;
import com.aliyun.openservices.ons.api.MessageListener;
public class DemoMessageListener implements MessageListener {
    public Action consume(Message message, ConsumeContext context) {
        System.out.println("Receive: " + message.getMsgID());
        try {
            //do something..
            return Action.CommitMessage;
        }catch (Exception e) {
            //消费失败
            return Action.ReconsumeLater;
        }
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="https://www.springframework.org/schema/beans"
       xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="msgListener" class="demo.DemoMessageListener"></bean> <!--Listener配置-->
    <bean id="consumer" class="com.aliyun.openservices.ons.api.bean.ConsumerBean" init-method="start" destroy-method="shutdown">
        <property name="properties" > <!--消费者配置信息-->
            <props>
                <prop key="ConsumerId">CID_DEMO</prop> <!--请替换XXX-->
                <prop key="AccessKey">AKDEMO</prop>
                <prop key="SecretKey">SKDEMO</prop>
                <!--将消费者线程数固定为50个
                <prop key="ConsumeThreadNums">50</prop>
                -->
            </props>
        </property>
        <property name="subscriptionTable">
            <map>
                <entry value-ref="msgListener">
                    <key>
                        <bean class="com.aliyun.openservices.ons.api.bean.Subscription">
                            <property name="topic" value="TopicTestMQ"/>
                            <property name="expression" value="*"/><!--expression即Tag，可以设置成具体的Tag，如 taga||tagb||tagc，也可设置成*。 *仅代表订阅所有Tag，不支持通配-->
                        </bean>
                    </key>
                </entry>
                <!--更多的订阅添加entry节点即可-->
            </map>
        </property>
    </bean>
</beans>

package demo;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ConsumeWithSpring {
    public static void main(String[] args) {
        /**
         * 消费者Bean配置在consumer.xml中，可通过ApplicationContext获取或者直接注入到其他类(比如具体的Controller)中
         */
        ApplicationContext context = new ClassPathXmlApplicationContext("consumer.xml");
        System.out.println("Consumer Started");
    }
}